Method for providing ultrasound image in elastography and ultrasound imaging device therefor

Abstract

An ultrasound imaging device and a method for providing an elastography image by an ultrasound imaging device are provided. The ultrasound imaging device may acquire information related to elasticity of a reference region on the basis of receiving a user input for setting the reference region on a reference elastography image, which is an elastography image of one side of bilaterally symmetric regions of a subject, acquire at least one elastography image of the other side of the bilaterally symmetric regions on the basis of receiving a user input for scanning the other side of the bilaterally symmetric regions using a probe, determine a target elastography image from the at least one elastography image on the basis of similarity to the reference elastography image, determine a target region on the determined target elastography image on the basis of a location of the reference region in the reference elastography image, and display, together, the reference elastography image, in which the location of the reference region is indicated, and the target elastography image, in which the target region is indicated, thereby providing difference information between the reference region and the target region.

Description

Method for providing an ultrasonic image in elastic imaging and an ultrasonic imaging device according to the same

[0001] The present disclosure relates to an ultrasound imaging device that provides an ultrasound image in elastic imaging, a method for controlling the ultrasound imaging device, and a computer-readable recording medium that stores a computer program for controlling the ultrasound imaging device.

[0002] The ultrasound diagnostic device transmits ultrasound signals from the surface of the subject's body toward a specific part of the body, and obtains images of soft tissue cross-sections or blood flow using information from ultrasound signals reflected from tissues within the body.

[0003] These ultrasound diagnostic devices have the advantages of being compact, inexpensive, and capable of real-time display. In addition, ultrasound diagnostic devices offer high safety due to the absence of exposure to radiation such as X-rays, and are therefore widely used in conjunction with other imaging diagnostic devices such as X-ray diagnostic devices, CT (Computerized Tomography) scanners, MRI (Magnetic Resonance Imaging) devices, and nuclear medicine diagnostic devices.

[0004] Elastography is an ultrasound imaging modality that visualizes the elasticity of an object. The elasticity of an object provides qualitative or quantitative information regarding diseases related to the elasticity of body tissues, such as cancer, liver cirrhosis, and musculoskeletal abnormalities.

[0005] Generally, tumors are harder than normal tissue. That is, because the elasticity of a tumor is lower than that of normal tissue, when the same pressure is applied to normal tissue and a tumor, the strain of the normal tissue is greater than that of the tumor. Therefore, elastography can be used for the diagnosis of tumors or cancer.

[0006] Furthermore, musculoskeletal tissues such as ligaments, tendons, muscles, cartilage, nerves, and blood vessels may lose elasticity or become inflamed, and elastography can be used to measure the degree of tissue elasticity or inflammation. Accordingly, elastography can assist in longitudinally monitoring the healing and recovery effects following exercise, injury, or rehabilitation.

[0007] Ultrasound-based elastography is a method that focuses ultrasound to apply an acoustic radiation force impulse to a tissue of interest to induce transverse waves in the tissue of interest, and quantifies and images the elasticity value of the tissue based on the velocity of the induced transverse waves.

[0008] One aspect of the present disclosure may provide an ultrasonic imaging device. The ultrasonic imaging device may include at least one processor comprising an ultrasonic transceiver module, a probe, a display, a memory for storing instructions, and a processing circuit. When instructions are executed individually or collectively by at least one processor, the ultrasonic imaging device may acquire information regarding the elasticity of a reference area based on receiving a user input to set a reference area on a reference elastic image, which is an elastic image of one side of a left-right symmetrical side of an object, and, upon receiving a user input to scan the other side of the left-right symmetrical side using a probe, control an ultrasonic transceiver module to acquire at least one elastic image of the other side, determine a target elastic image among the at least one elastic image based on similarity with the reference elastic image, determine a target area on the determined target elastic image based on the position of the reference area within the reference elastic image, and provide information regarding the difference between the reference area and the target area by displaying together the reference elastic image with the position of the reference area and the target elastic image with the target area through a display.

[0009] One aspect of the present disclosure may provide a method for providing elastic images. The method for providing elastic images may include: receiving a user input to set a reference region on a reference elastic image, which is an elastic image of one side of a left-right symmetrical side of an object, and acquiring information regarding the elasticity of the reference region; receiving a user input to scan the other side of the left-right symmetrical side using a probe and acquiring at least one elastic image of the other side; determining a target elastic image among at least one elastic image based on similarity with the reference elastic image; determining a target region on the determined target elastic image based on the position of the reference region within the reference elastic image; and providing information regarding the difference between the reference region and the target region by displaying together the reference elastic image with the position of the reference region and the target elastic image with the target region.

[0010] One aspect of the present disclosure may provide a computer-readable recording medium having a program recorded thereon for performing a method of providing an elastic image on a computer.

[0011] Referring to FIGS. 1a and FIGS. 1b, the ultrasound imaging system may include a probe and an ultrasound imaging device.

[0012] FIGS. 2a, FIGS. 2b, FIGS. 2c, and FIGS. 2d are drawings illustrating an ultrasonic imaging device according to one embodiment of the present disclosure.

[0013] FIG. 3 illustrates a method for an ultrasonic imaging device to compare elastic values ​​of left-right symmetrical parts according to one embodiment of the present disclosure.

[0014] FIG. 4 illustrates a flowchart of a method for an ultrasonic imaging device to compare elastic values ​​according to one embodiment of the present disclosure.

[0015] FIG. 5a illustrates a method according to one embodiment of the present disclosure in which an ultrasonic imaging device determines an elastic image of another side based on an elastic image of one side.

[0016] FIG. 5b illustrates a method in which an ultrasonic imaging device displays a reference elastic image and a target elastic image by comparing them, according to one embodiment of the present disclosure.

[0017] FIG. 6 illustrates a method for an ultrasonic imaging device to determine a target elastic image and a target region among a plurality of elastic images, according to one embodiment of the present disclosure.

[0018] FIG. 7 illustrates a method according to one embodiment of the present disclosure in which an ultrasound imaging device determines a target elastic image among a plurality of elastic images based on anatomical similarity.

[0019] FIG. 8 illustrates a method for an ultrasonic imaging device to determine a target region within a target elastic image, according to one embodiment of the present disclosure.

[0020] FIG. 9 illustrates a method for an ultrasound imaging device to receive user input changing a target area, according to one embodiment of the present disclosure.

[0021] FIG. 10 illustrates a method for an ultrasonic imaging device to receive user input changing a target elastic image, according to one embodiment of the present disclosure.

[0022] FIG. 11 is a flowchart of a method for an ultrasonic imaging device to compare and display a previous elastic image and a current elastic image for a region of interest, according to one embodiment of the present disclosure.

[0023] FIG. 12 illustrates a method in which an ultrasonic imaging device displays a comparison between a previous elastic image and a current elastic image for a region of interest, according to one embodiment of the present disclosure.

[0024] FIG. 13 illustrates a method in which an ultrasonic imaging device displays a target elastic image according to the left-right direction of a reference elastic image, according to one embodiment of the present disclosure.

[0025] FIG. 14 illustrates a method in which an ultrasonic imaging device displays a target elastic image according to the depth of a reference elastic image, according to one embodiment of the present disclosure.

[0026] FIG. 15 illustrates a method in which an ultrasonic imaging device displays a target elastic image according to the elastic range of a reference elastic image, according to one embodiment of the present disclosure.

[0027] In the present disclosure, the expression “at least one of a, b, or c” may refer to “a”, “b”, “c”, “a and b”, “a and c”, “b and c”, “a, b, and c all”, or variations thereof.

[0028] Embodiments of the present disclosure are described below in detail with reference to the attached drawings so that those skilled in the art can easily implement them. However, the present disclosure may be embodied in various different forms and is not limited to the embodiments described herein. Furthermore, in order to clearly explain the present disclosure in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification are denoted by similar reference numerals.

[0029] The terms used in this disclosure are described in their current, general form considering the functions mentioned herein; however, they may refer to various other terms depending on the intent of those skilled in the art, case law, the emergence of new technologies, etc. Accordingly, the terms used in this disclosure should not be interpreted solely by their names, but should be interpreted based on the meaning of the terms and the overall content of this disclosure.

[0030] Additionally, terms such as "first," "second," etc., may be used to describe various components, but the components should not be limited by these terms. These terms are used for the purpose of distinguishing one component from another.

[0031] Furthermore, the terms used in this disclosure are used merely to describe specific embodiments and are not intended to limit this disclosure. Singular expressions include a plural meaning unless the context clearly indicates a singular meaning. Additionally, throughout the specification, when a part is described as being "connected" to another part, this includes not only cases where they are "directly connected," but also cases where they are "electrically connected" with other elements interposed between them. Furthermore, when a part is described as "including" a component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0032] This specification does not describe all elements of the embodiments, and general content in the art to which the invention pertains or content that overlaps with the embodiments is omitted. The terms 'module' or 'unit' as used in this specification may be implemented as one or more combinations of software, hardware, or firmware, and depending on the embodiments, multiple 'modules' or 'units' may be implemented as a single element, or a single 'module' or 'unit' may include multiple elements.

[0033] Phrases such as "in some embodiments" or "in one embodiment" appearing in various places in this specification do not necessarily refer to the same embodiment.

[0034] In the present disclosure, 'object' refers to the subject of imaging and may include a person, an animal, or a part thereof. For example, the object may include a part of the body (such as an organ or tissue) or a phantom.

[0035] In the present disclosure, "ultrasonic image" means an image of an object that is transmitted to an object and is generated or processed based on an ultrasonic signal reflected from the object.

[0036] Referring to FIGS. 1a and FIGS. 1b, the ultrasound imaging system (100) may include a probe (70) and an ultrasound imaging device (1000).

[0037] The ultrasound imaging device (1000) can be implemented as a cart type as well as a portable type. Examples of portable ultrasound imaging devices may include, but are not limited to, a probe, a smartphone including an application, a laptop computer, a PDA (Personal Digital Assistant), or a tablet PC. The ultrasound imaging device (1000) can also be implemented as a probe-integrated type.

[0038] The probe (70) may include a wired probe connected to the ultrasonic imaging device (1000) via a wire and communicating with the ultrasonic imaging device (1000) via a wire, a wireless probe connected to the ultrasonic imaging device (1000) via a wireless and communicating with the ultrasonic imaging device (1000) via a wireless and / or a hybrid probe connected to the ultrasonic imaging device (1000) via a wired or wireless connection and communicating with the ultrasonic imaging device (1000) via a wired or wireless connection.

[0039] According to various embodiments of the present disclosure, as shown in FIG. 1a, an ultrasonic imaging device (1000) may include an ultrasonic transceiver module (110), and as shown in FIG. 1b, a probe (70) may include an ultrasonic transceiver module (110). According to various embodiments of the present disclosure, it is also possible for both the ultrasonic imaging device (1000) and the probe (70) to include an ultrasonic transceiver module (110).

[0040] According to various embodiments of the present disclosure, the probe (70) may further include at least one of an image processor (130), a display (140), or an input interface (170), or a combination thereof. In the present disclosure, the description of the ultrasonic transceiver module (110), image processor (130), display (140), or input interface (170) included in the ultrasonic imaging device (1000) may also apply to the ultrasonic transceiver module (110), image processor (130), display (140), or input interface (170) included in the probe (70).

[0041] FIG. 1a is a block diagram showing the configuration of an ultrasound imaging system (100) when the probe (70) is a wired probe or a hybrid probe.

[0042] The probe (70) may include a plurality of transducers. The plurality of transducers may be arranged in a predetermined array to be implemented as a transducer array. The transducer array may correspond to a one-dimensional (1D) array or a two-dimensional (2D) array. The plurality of transducers may transmit an ultrasonic signal to a target (3) according to a transmission signal applied from a transmission module (113). The plurality of transducers may receive an ultrasonic signal (echo signal) reflected from the target (3) to form a reception signal. Additionally, the probe (70) may be implemented as an integral unit with the ultrasonic imaging device (1000) or as a separate unit connected to the ultrasonic imaging device (1000) via a wire. Additionally, the ultrasonic imaging device (1000) may be connected to one or a plurality of probes (70) depending on the implementation type.

[0043] If the probe (70) is a wired probe or a hybrid probe, it may include a cable and a connector that can be connected to the connector of the ultrasound imaging device (1000).

[0044] A probe (70) according to one embodiment of the present disclosure may be implemented as a two-dimensional probe. When the probe (70) is implemented as a two-dimensional probe, a plurality of transducers included in the probe (70) may be arranged in two dimensions to form a two-dimensional transducer array.

[0045] For example, a two-dimensional transducer array may be in the form of including a plurality of sub-arrays, each comprising a plurality of transducers arranged in a first direction, in a second direction different from the first direction.

[0046] In addition, when the probe (70) according to one embodiment of the present disclosure is implemented as a two-dimensional probe, the ultrasonic transceiver module (110) may include at least one of an analog beamformer or a digital beamformer. In addition, according to one embodiment of the present disclosure, the two-dimensional probe may include at least one of an analog beamformer or a digital beamformer or a combination thereof, depending on the implementation form.

[0047] The processor (120) controls the transmission module (113) to form a transmission signal to be applied to each transducer by taking into account the positions and focal points of the plurality of transducers included in the probe (70).

[0048] The processor (120) can control the receiving module (115) to generate ultrasonic data by converting the received signal received from the probe (70) into analog-to-digital and summing the digitally converted received signal, taking into account the positions and focusing points of the plurality of transducers.

[0049] When the probe (70) is implemented as a two-dimensional probe, the processor (120) can calculate a time delay value for digital beamforming for each of the multiple sub-arrays included in the two-dimensional transducer array. Additionally, the processor (120) can calculate a time delay value for analog beamforming for each of the transducers included in any one of the multiple sub-arrays. The processor (120) can control an analog beamformer and a digital beamformer to form a transmission signal to be applied to each of the multiple transducers according to the time delay value for analog beamforming and the time delay value for digital beamforming. Additionally, the processor (120) can control an analog beamformer to sum the signals received from the multiple transducers according to the time delay value for analog beamforming for each sub-array. Additionally, the processor (120) can control an ultrasonic transceiver module (110) to convert the signals summed for each sub-array into analog-to-digital. Additionally, the processor (120) can control the digital beamformer to generate ultrasonic data by summing the digitally converted signals according to a time delay value for digital beamforming.

[0050] The image processor (130) uses the generated ultrasound data to generate or process an ultrasound image.

[0051] The display (140) can display the generated ultrasound image and various information processed by the ultrasound imaging device (1000) or the probe (70). The probe (70) or the ultrasound imaging device (1000) may include one or more displays (140) depending on the implementation form. Additionally, the display (140) may include a touch panel or a touch screen. Additionally, the display (140) may include a flexible display.

[0052] The processor (120) can control the overall operation of the ultrasound imaging device (1000) and control the operation of the components of the ultrasound imaging device (1000). The processor (120) can perform or control various operations or functions of the ultrasound imaging device (1000) by executing programs or instructions stored in memory (150). Additionally, the processor (120) can control the operation of the ultrasound imaging device (1000) by receiving a control signal from an input interface (170) or an external device.

[0053] The ultrasound imaging device (1000) includes a communication module (160) and can be connected to and communicate with an external device (e.g., probe (70), server, medical device, portable device (smartphone, tablet PC, wearable device, etc.)) through the communication module (160).

[0054] The communication module (160) may include one or more components that enable communication with an external device. The communication module (160) may include, for example, at least one of a short-range communication module, a wired communication module, or a wireless communication module.

[0055] The communication module (160) can receive control signals or data from an external device. The processor (120) can control the operation of the ultrasonic imaging device (1000) according to the control signals received through the communication module (160). Additionally, it is possible for the processor (120) to transmit control signals to an external device through the communication module (160) and control the external device according to the transmitted control signals. The external device can operate according to the control signals received from the ultrasonic imaging device (1000) or process data received from the ultrasonic imaging device (1000).

[0056] A program or application related to the ultrasonic imaging device (1000) may be installed on an external device. The program or application installed on the external device may control the ultrasonic imaging device (1000) or operate according to a control signal or data received from the ultrasonic imaging device (1000).

[0057] An external device may receive or download a program or application related to the ultrasound imaging device (1000) from the ultrasound imaging device (1000), probe (70), or server, and install and execute the program or application on the external device. The ultrasound imaging device (1000), probe (70), or server providing the program or application may include a recording medium that stores instructions, commands, installation files, executable files, or related data of the said program or application. It is also possible for the external device to be sold with the program or application installed.

[0058] The memory (150) can store various data or programs for driving and controlling the ultrasonic imaging device (1000), input / output ultrasonic data, ultrasonic images, etc.

[0059] The input interface (170) can receive user input for controlling the ultrasonic imaging device (1000). For example, user input may include, but is not limited to, inputs such as operating a button, keypad, mouse, trackball, jog switch, knob, etc., inputs such as touching a touchpad or touchscreen, voice inputs, motion inputs, and biometric information inputs (e.g., iris recognition, fingerprint recognition, etc.).

[0060] FIG. 1b illustrates a control block diagram of an ultrasound imaging system (100) when the probe (70) is a wireless probe or a hybrid probe.

[0061] According to various embodiments of the present disclosure, the ultrasonic imaging device (1000) illustrated in FIG. 1b may be replaced with the ultrasonic imaging device (1000) described with reference to FIG. 1a.

[0062] According to various embodiments of the present disclosure, the probe (70) illustrated in FIG. 1a may be replaced with the probe (70) described with reference to FIG. 1b.

[0063] The probe (70) may include a display (112), a transmitting module (113), a battery (114), a transducer (117), a charging module (116), a receiving module (115), an input interface (109), a processor (118), and a communication module (119). Although FIG. 1b shows the probe (70) including both the transmitting module (113) and the receiving module (115), depending on the implementation, the probe (70) may include only some of the components of the transmitting module (113) and the receiving module (115), and some of the components of the transmitting module (113) and the receiving module (115) may be included in the ultrasound imaging device (1000). Additionally, according to one embodiment of the present disclosure, the probe (70) may further include an image processor (130).

[0064] The transducer (117) may include a plurality of transducers. The plurality of transducers may be arranged in a predetermined array to form a transducer array. The transducer array may correspond to a one-dimensional (1D) array or a two-dimensional (2D) array. The plurality of transducers may transmit an ultrasonic signal to a target (3) according to a transmission signal applied from the transmission module (113). Additionally, the plurality of transducers may receive an ultrasonic signal reflected from the target (3) and form or generate an electrical reception signal.

[0065] The charging module (116) can charge the battery (114). The charging module (116) can receive power from an external source. According to one embodiment of the present disclosure, the charging module (116) can receive power wirelessly. Additionally, according to one embodiment of the present disclosure, the charging module (116) can receive power via a wired connection. The charging module (116) can transfer the received power to the battery (114).

[0066] The processor (118) controls the transmission module (113) to generate or form a transmission signal to be applied to each of the multiple transducers by taking into account the positions and focal points of the multiple transducers.

[0067] The processor (118) controls the receiving module (115) to generate ultrasound data by converting the received signal received from the transducer (117) into analog-to-digital and summing the digitally converted received signal, taking into account the positions and focusing points of the plurality of transducers. According to one embodiment of the present disclosure, if the probe (70) includes an image processor (130), an ultrasound image can be generated using the generated ultrasound data.

[0068] When the probe (70) is implemented as a two-dimensional probe, the processor (118) can calculate a time delay value for digital beamforming for each of the multiple sub-arrays included in the two-dimensional transducer array. Additionally, the processor (118) can calculate a time delay value for analog beamforming for each of the transducers included in any one of the multiple sub-arrays. The processor (118) can control the analog beamformer and the digital beamformer to form a transmission signal to be applied to each of the multiple transducers according to the time delay value for analog beamforming and the time delay value for digital beamforming. Additionally, the processor (118) can control the analog beamformer to sum the signals received from the multiple transducers according to the time delay value for analog beamforming for each sub-array. Additionally, the processor (118) can control the ultrasonic transceiver module (110) to convert the signals summed for each sub-array into analog-to-digital. Additionally, the processor (118) can control the digital beamformer to generate ultrasonic data by summing the digitally converted signals according to a time delay value for digital beamforming.

[0069] The processor (118) can control the overall operation of the probe (70) and the operation of the components of the probe (70). The processor (118) can perform or control various operations or functions of the probe (70) by executing programs or instructions stored in memory (111). Additionally, the processor (118) can control the operation of the probe (70) by receiving a control signal from the input interface (109) of the probe (70) or an external device (e.g., an ultrasound imaging device (1000)). Additionally, the processor (118) can control the operation of the probe (70) by receiving a control signal from the input interface (109) or an external device. The input interface (109) can receive user input for controlling the probe (70). For example, user input may include, but is not limited to, inputs involving the operation of buttons, keypads, mice, trackballs, jog switches, knobs, etc., inputs involving the touch of a touchpad or touchscreen, voice inputs, motion inputs, and biometric information inputs (e.g., iris recognition, fingerprint recognition, etc.).

[0070] The display (112) can display an ultrasound image generated by the probe (70), an ultrasound image generated by processing ultrasound data generated by the probe (70), an ultrasound image received from the ultrasound imaging device (1000), or various information processed by the ultrasound imaging system (100). Additionally, the display (112) can further display status information of the probe (70). The status information of the probe (70) may include at least one of device information of the probe (70), battery status information of the probe (70), frequency band information of the probe (70), output information of the probe (70), information on whether there is an abnormality of the probe (70), setting information of the probe (70), or temperature information of the probe (70).

[0071] The probe (70) may include one or more displays (112) depending on the implementation form. Additionally, the displays (112) may include a touch panel or a touch screen. Additionally, the displays (112) may include a flexible display.

[0072] The communication module (119) can wirelessly transmit generated ultrasound data or ultrasound images to the ultrasound imaging device (1000) via a wireless network. Additionally, the communication module (119) can receive control signals and data from the ultrasound imaging device (1000).

[0073] The ultrasonic imaging device (1000) can receive ultrasonic data or ultrasonic images from the probe (70).

[0074] In one embodiment of the present disclosure, when the probe (70) includes an image processor (130) capable of generating an ultrasound image using ultrasound data, the probe (70) can transmit ultrasound data or an ultrasound image generated by the image processor (130) to an ultrasound imaging device (1000).

[0075] In one embodiment of the present disclosure, if the probe (70) does not include an image processor (130) capable of generating an ultrasound image using ultrasound data, the probe (70) can transmit ultrasound data to an ultrasound imaging device (1000). The ultrasound data may include ultrasound raw data, and the ultrasound image may mean ultrasound image data.

[0076] The ultrasonic imaging device (1000) may include a processor (120), an image processor (130), a display (140), a memory (150), a communication module (160), and an input interface (170).

[0077] The image processor (130) generates or processes an ultrasound image using ultrasound data received from the probe (70).

[0078] The display (140) can display an ultrasound image received from the probe (70), an ultrasound image generated by processing ultrasound data received from the probe (70), or various information processed by the ultrasound imaging system (100). The ultrasound imaging device (1000) may include one or a plurality of displays (140) depending on the implementation form. Additionally, the display (140) may include a touch panel or a touch screen. Additionally, the display (140) may include a flexible display.

[0079] The processor (120) can control the overall operation of the ultrasound imaging device (1000) and control the operation of the components of the ultrasound imaging device (1000). The processor (120) can execute a program or application stored in memory (150) to perform or control various operations or functions of the ultrasound imaging device (1000). Additionally, the processor (120) can control the operation of the ultrasound imaging device (1000) by receiving a control signal from an input interface (170) or an external device.

[0080] The ultrasound imaging device (1000) includes a communication module (160) and can be connected to and communicate with an external device (e.g., probe (70), server, medical device, portable device (smartphone, tablet PC, wearable device, etc.)) through the communication module (160).

[0081] The communication module (160) may include one or more components that enable communication with an external device. The communication module (160) may include, for example, at least one of a short-range communication module, a wired communication module, or a wireless communication module.

[0082] The communication module (160) of the ultrasound imaging device (1000) and the communication module (119) of the probe (70) may communicate using a network or may communicate using a short-range wireless communication method. For example, the communication module (160) of the ultrasound imaging device (1000) and the communication module (119) of the probe (70) may communicate using any one of wireless data communication methods including Wireless LAN, Wi-Fi, Bluetooth, Zigbee, WFD (Wi-Fi Direct), infrared communication (IrDA, infrared Data Association), BLE (Bluetooth LowEnergy), NFC (Near Field Communication), Wibro (Wireless Broadband Internet), WiMAX (World Interoperability for Microwave Access), SWAP (Shared Wireless Access Protocol), WiGig (Wireless Gigabit Alliance), RF communication, or 60 GHz millimeter wave (mm Wave) short-range communication.

[0083] To this end, the communication module (160) of the ultrasound imaging device (1000) and the communication module (119) of the probe (70) may include at least one of a Wireless LAN communication module, a Wi-Fi communication module, a Bluetooth communication module, a Zigbee communication module, a Wi-Fi Direct (WFD) communication module, an infrared Data Association (IrDA) module, a Bluetooth LowEnergy (BLE) communication module, a Near Field Communication (NFC) communication module, a Wireless Broadband Internet (Wibro) communication module, a World Interoperability for Microwave Access (WiMAX) communication module, a Shared Wireless Access Protocol (SWAP) communication module, a Wireless Gigabit Alliance (WiGig) communication module, an RF communication module, or a 60 GHz millimeter wave (mm Wave) short-range communication module.

[0084] In one embodiment of the present disclosure, the probe (70) transmits device information (e.g., ID information) of the probe (70) to an ultrasound imaging device (1000) using a first communication method (e.g., BLE) and can be wirelessly paired with the ultrasound imaging device (1000). Additionally, the probe (70) can transmit ultrasound data and / or ultrasound images to the paired ultrasound imaging device (1000).

[0085] The device information of the probe (70) may include various information related to the serial number, model name, or battery status of the probe (70).

[0086] The ultrasound imaging device (1000) can receive device information (e.g., ID information) of the probe (70) from the probe (70) using a first communication method (e.g., BLE) and can be wirelessly paired with the probe (70). Additionally, the ultrasound imaging device (1000) can transmit an activation signal to the paired probe (70) and receive ultrasound data and / or ultrasound images from the probe (70). At this time, the activation signal may include a signal for controlling the operation of the probe (70).

[0087] In one embodiment of the present disclosure, the probe (70) can transmit device information (e.g., ID information) of the probe (70) to an ultrasound imaging device (1000) using a first communication method (e.g., BLE) and can be wirelessly paired with the ultrasound imaging device (1000). Additionally, the probe (70) can transmit ultrasound data and / or ultrasound images to the ultrasound imaging device (1000) paired by the first communication method using a second communication method (e.g., 60 GHz millimeter wave, Wi-Fi).

[0088] The ultrasound imaging device (1000) can receive device information (e.g., ID information) of the probe (70) from the probe (70) using a first communication method (e.g., BLE) and can be wirelessly paired with the probe (70). Additionally, the ultrasound imaging device (1000) can transmit an activation signal to the paired probe (70) and receive ultrasound data and / or ultrasound images from the probe (70) using a second communication method (e.g., 60 GHz millimeter wave, Wi-Fi).

[0089] According to one embodiment of the present disclosure, a first communication method used to pair a probe (70) and an ultrasonic imaging device (1000) with each other may have a frequency band lower than the frequency band of a second communication method used to transmit ultrasonic data and / or ultrasonic images to the ultrasonic imaging device (1000) by the probe (70).

[0090] The display (140) of the ultrasound imaging device (1000) can display User Interfaces (UIs) indicating device information of the probe (70). For example, the display (140) can display identification information of the wireless ultrasound probe (70), a pairing method indicating a method of pairing with the probe (70), a data communication status between the probe (70) and the ultrasound imaging device (1000), a method of performing data communication with the ultrasound imaging device (1000), or a UI indicating the battery status of the probe (70).

[0091] If the probe (70) includes a display (112), the display (112) of the probe (70) may display a UI indicating device information of the probe (70). For example, the display (112) may display identification information of the wireless ultrasound probe (70), a pairing method indicating a pairing method with the probe (70), a data communication status between the probe (70) and the ultrasound imaging device (1000), a method for performing data communication with the ultrasound imaging device (1000), or a UI indicating the battery status of the probe (70).

[0092] The communication module (160) can receive control signals or data from an external device. The processor (120) can control the operation of the ultrasonic imaging device (1000) according to the control signals received through the communication module (160).

[0093] Additionally, the processor (120) can transmit a control signal to an external device through the communication module (160) and control the external device according to the transmitted control signal. The external device may operate according to the control signal received from the ultrasound imaging device (1000) or process data received from the ultrasound imaging device (1000).

[0094] An external device may receive or download a program or application related to the ultrasound imaging device (1000) from the ultrasound imaging device (1000), probe (70), or server, and install and execute the program or application on the external device. The ultrasound imaging device (1000), probe (70), or server providing the program or application may include a recording medium that stores instructions, commands, installation files, executable files, or related data of the said program or application. It is also possible for the external device to be sold with the program or application installed.

[0095] The memory (150) can store various data or programs for driving and controlling the ultrasonic imaging device (1000), input / output ultrasonic data, ultrasonic images, etc.

[0096] An example of an ultrasound imaging system (100) according to one embodiment of the present disclosure is described later through FIGS. 2a, 2b, 2c, and 2d.

[0097] At least one processor (120) can receive user input through an input interface (170) to set a reference area on a reference elastic image, which is an elastic image of one of the left-right symmetrical parts of an object.

[0098] At least one processor (120) can obtain information regarding the elasticity of a reference area based on receiving a user input that sets a reference area on a reference elastic image.

[0099] At least one processor (120) can control an ultrasonic transceiver module (110) to obtain at least one elastic image of the other side by receiving a user input to scan the other side of the left-right symmetrical side using a probe (70).

[0100] At least one processor (120) can determine a target elastic image among at least one elastic image based on similarity with a reference elastic image.

[0101] At least one processor (120) can determine a target region on a determined target elastic image based on the location of a reference region within a reference elastic image.

[0102] At least one processor (120) can display a reference elastic image showing the location of a reference area and a target elastic image showing a target area together through a display (140).

[0103] At least one processor (120) can determine as a target area on a target elastic image an area that is of the same type as the tissue of the reference area but has a reliability of elasticity value greater than or equal to the reference.

[0104] At least one processor (120) can calculate the reliability of elastic values ​​within a target elastic image. At least one processor (120) can determine an area within the target elastic image corresponding to the tissue of a reference area as a target candidate area. At least one processor (120) can determine the area with the highest reliability of elastic values ​​within the target candidate area as the target area.

[0105] At least one processor (120) can display elastic information of the target area along with elastic information of the reference area through the display (140).

[0106] At least one processor (120) can display a first reliability image representing the reliability of a reference elastic image and a second reliability image representing the reliability of a target elastic image together through a display (140).

[0107] At least one processor (120) can receive user input to move the position of a target area on a target elastic image through an input interface (170). Upon receiving user input to move the position of a target area on a target elastic image, at least one processor (120) can display elastic information of the moved target area.

[0108] At least one processor (120) can acquire a previous target elastic image generated for the other side before the target elastic image is acquired. Upon receiving user input to rescan the other side using the probe (70), at least one processor (120) can control the ultrasonic transceiver module (110) to acquire the next target elastic image.

[0109] At least one processor (120) can determine a next target region on an acquired next target elastic image based on the location of a previous target region within a previous target elastic image. At least one processor (120) can display information regarding the elasticity of the next target region along with information regarding the elasticity of the previous target region through a display (140).

[0110] At least one processor (120) can convert the target elastic image so that the left and right sides of the target elastic image are reversed when the target elastic image is a mirror image with the reference elastic image, and can display the converted target elastic image through the display (140).

[0111] At least one processor (120) can convert the depth of the target elastic image based on the depth of the reference elastic image when the depth of the target elastic image is different from the depth of the reference elastic image, and can display the converted target elastic image through the display (140).

[0112] At least one processor (120) can adjust the elastic range of the target elastic image according to the elastic range of the reference elastic image when the elastic range of the target elastic image and the elastic range of the reference elastic image are different, and can display the target elastic image with the adjusted elastic range through the display (140).

[0113] FIGS. 2a, FIGS. 2b, FIGS. 2c, and FIGS. 2d are drawings illustrating an ultrasonic imaging device according to one embodiment of the present disclosure.

[0114] Referring to FIGS. 2a and 2b, the ultrasound imaging device (1000a, 1000b) may include a main display (121) and a sub-display (122). The main display (121) and the sub-display (122) may correspond to the display (140) of FIGS. 1a and 1b. At least one of the main display (121) or the sub-display (122) may be implemented as a touchscreen. At least one of the main display (121) or the sub-display (122) may display ultrasound images or various information processed by the ultrasound imaging device (1000a, 1000b). Additionally, at least one of the main display (121) or the sub-display (122) may be implemented as a touchscreen and provide a GUI (Graphic User Interface) to receive data input from a user for controlling the ultrasound imaging device (1000a, 1000b). For example, the main display (121) displays an ultrasound image, and the sub-display (122) can display a control panel for controlling the display of the ultrasound image in the form of a GUI. The sub-display (122) can receive data for controlling the display of the image through the control panel displayed in the form of a GUI. For example, a TGC (Time Gain Compensation) button, an LGC (Lateral Gain Compensation) button, a Freeze button, a trackball, a jog switch, or a knob, etc., can be provided as a GUI on the sub-display (122).

[0115] The ultrasonic imaging device (1000a, 1000b) can control the display of the ultrasonic image displayed on the main display (121) using the received control data. Additionally, the ultrasonic imaging device (1000a, 1000b) can be connected to the probe (70) via a wired or wireless connection to transmit and receive ultrasonic signals to and from the target object.

[0116] Referring to FIG. 2b, the ultrasound imaging device (1000b) may further include a control panel (165) in addition to the main display (121) and sub-display (122). The control panel (165) may include buttons, trackballs, jog switches, knobs, etc., and may receive data input from a user to control the ultrasound imaging device (1000b). For example, the control panel (165) may include a TGC button (171), a Freeze button (172), etc. The TGC button (171) is a button for setting TGC values ​​according to the depth of the ultrasound image. Additionally, when the ultrasound imaging device (1000b) detects input from the Freeze button (172) while scanning the ultrasound image, it may maintain the state in which the frame image at that point in time is displayed, capture the frame image at that point in time, or save the frame image at that point in time.

[0117] Meanwhile, buttons, trackballs, jog switches, knobs, etc. included in the control panel (165) may be provided as GUIs on the main display (121) or sub-display (122). Additionally, the ultrasonic imaging device (1000a, 1000b) may be connected to the probe (70) to transmit and receive ultrasonic signals to and from an object.

[0118] Additionally, the ultrasonic imaging device (1000a, 1000b) may include various types of input / output interfaces, such as speakers, LEDs, and vibration devices. For example, the ultrasonic imaging device (1000a, 1000b) may output various information in the form of graphics, sound, or vibration through the input / output interface. Additionally, the ultrasonic imaging device (1000a, 1000b) may output various notifications or data through the input / output interface.

[0119] Referring to FIG. 2c and FIG. 2d, the ultrasound imaging device (1000c, 1000d) can also be implemented as a portable device. Examples of the portable ultrasound imaging device (1000c, 1000d) may include, but are not limited to, a smartphone, laptop computer, PDA, or tablet PC including a probe and an application.

[0120] The ultrasound imaging device (1000c) may include a main body (51). Referring to FIG. 2c, a probe (70) may be wired to one side of the main body (51). To this end, the main body (51) may include a detachable connection terminal to which the cable connected to the probe (70) is attached. The probe (70) may include a cable having a connection terminal that can be connected to the main body (51).

[0121] Referring to FIG. 2d, the probe (70) can be wirelessly connected to an ultrasound imaging device (1000d). The main body (51) may include an input / output interface (e.g., a touch screen). The input / output interface may display ultrasound images, various information processed by the ultrasound imaging device, or a GUI.

[0122] The ultrasound imaging device (1000d) and the probe (70) can establish communication or be paired using short-range wireless communication. For example, the ultrasound imaging device (1000d) and the probe (70) can communicate using Bluetooth, BLE, Wi-Fi, or Wi-Fi Direct.

[0123] The ultrasound imaging device (1000c, 1000d) can execute a program or application related to the probe (70) to control the probe (70) and output information related to the probe (70). The ultrasound imaging device (1000c, 1000d) can perform operations related to the probe (70) while communicating with a predetermined server. The probe (70) can be registered with the ultrasound imaging device (1000c, 1000d) or registered with a predetermined server. The ultrasound imaging device (1000c, 1000d) can communicate with the registered probe (70) and perform operations related to the probe (70).

[0124] Additionally, the ultrasonic imaging device (1000c, 1000d) may include various types of input / output interfaces, such as speakers, LEDs, and vibration devices. For example, the ultrasonic imaging device (1000c, 1000d) may output various information in the form of graphics, sound, or vibration through the input / output interface. Additionally, the ultrasonic imaging device (1000c, 1000d) may output various notifications or data through the input / output interface.

[0125] According to one embodiment of the present disclosure, an ultrasound imaging device (1000a, 1000b, 1000c, or 1000d) may process ultrasound images or obtain additional information from ultrasound images using an artificial intelligence (AI) model. According to one embodiment of the present disclosure, an ultrasound imaging device (1000a, 1000b, 1000c, or 1000d) may generate ultrasound images or perform processing such as correction, image quality improvement, encoding, or decoding on ultrasound images using an AI model. Additionally, according to one embodiment of the present disclosure, an ultrasound imaging device (1000a, 1000b, 1000c, or 1000d) may perform processing such as baseline definition, anatomical information acquisition, lesion information acquisition, surface extraction, boundary definition, length measurement, area measurement, volume measurement, or annotation generation from ultrasound images using an AI model.

[0126] The AI ​​model may be provided on an ultrasound imaging device (1000a, 1000b, 1000c, or 1000d) or on a server.

[0127] AI models can be implemented using various artificial neural network models or deep neural network models. Additionally, AI models can be trained and generated using various machine learning algorithms or deep learning algorithms. For example, AI models can be implemented using models such as CNN (Convolutional Neural Network), RNN (Recurrent Neural Network), GAN (Generative Adversarial Network), or LSTM (Long Short-Term Memory).

[0128] FIG. 3 illustrates a method for comparing elastic values ​​of left-right symmetrical sides of an ultrasonic imaging device (1000) according to one embodiment of the present disclosure.

[0129] Referring to FIG. 3, the ultrasound imaging device (1000) can receive user input to set a reference area (21) on a reference elastic image (20) for one side (1) of the left-right symmetrical bilateral parts. The ultrasound imaging device (1000) can acquire at least one elastic image by receiving user input to scan the other side (2).

[0130] Elastography can be an image that represents elasticity values ​​using color. For example, hard tissues such as tumors exhibit low elasticity values ​​and may be represented in blue. Additionally, normal soft tissues exhibit high elasticity values ​​and may be represented in red.

[0131] The ultrasound imaging device (1000) can determine an image that is anatomically similar to a reference elastic image (20) among at least one elastic image of the other side (2) as a target elastic image (40).

[0132] Additionally, the ultrasound imaging device (1000) can determine a region with high reliability of elasticity value as a target region (41) among surrounding regions that include a region anatomically corresponding to a reference region (21) on the target elastic image (40).

[0133] In the case of the musculoskeletal system, the size, shape, and elasticity of the tissues may vary from subject to subject depending on the subject's level of movement, age, or gender. Therefore, it may be difficult for the user to diagnose the severity of the lesion based solely on the elastic imaging of the lesion. Accordingly, in most musculoskeletal ultrasounds, the user diagnoses the severity of the lesion (e.g., degree of functional impairment or degree of inflammation) by utilizing the left-right symmetrical structure of the musculoskeletal system and comparing the degree of elasticity on one side, which is normal, with the degree of elasticity on the other side, which requires diagnosis.

[0134] Referring to FIG. 3, the ultrasound imaging device (1000) can acquire a B-mode image (22) and a reference elastic image (20) for the normal side (1) by receiving a user input to scan the normal side (1) among the bilateral areas. Additionally, the ultrasound imaging device (1000) can receive a user input to set a reference area (21) on the displayed reference elastic image (20). The reference area (21) can be set by the user as a normal area for comparison with a lesion.

[0135] Upon receiving user input to scan the normal side (1) and then scan the lesion side (2), the ultrasound imaging device (1000) can acquire B-mode images and elastic images for the lesion side (2). Even if elastic images are acquired continuously for the same lesion, the elastic images may differ. For example, if the subject moves while scanning or if the user moves the probe unintentionally, different elastic values ​​may be measured for the same area, and the elastic values ​​may be measured inaccurately. Therefore, the user recalls the reference elastic image (20) and reference area (21) for the normal side (1) that were previously captured, selects the elastic image (40) for the lesion side (2) that has the highest anatomical similarity and has the most accurately measured elastic value, and then selects the lesion area (41) corresponding to the reference area (21) on the selected elastic image (40).

[0136] According to one embodiment of the present disclosure, an ultrasound imaging device (1000) can automatically provide a target elastic image (40) and a target region (41) based on a reference elastic image (20) and a reference region (21). For example, the ultrasound imaging device (1000) can determine a B-mode image (42) that is anatomically similar to a B-mode image (22) of a normal side (1) among B-mode images of a lesion side (2) based on the similarity between B-mode images, and determine an elastic image corresponding to the determined B-mode image (42) as the target elastic image (40). Accordingly, the ultrasound imaging device (1000) can provide only the elastic image that is easy to compare with the reference elastic image (20) among the elastic images of the lesion side (2) as the target elastic image (40).

[0137] The ultrasound imaging device (1000) can determine a target area (41) corresponding to a reference area (21) among the areas of the target elastic image (40). For example, the ultrasound imaging device (1000) can determine the area at a location anatomically corresponding to the location of the reference area (21) as the target area (41). For example, if the reference area (21) is the starting part of the common extensor tendon on one side, the ultrasound imaging device (1000) can determine the starting part of the common extensor tendon on the other side as the target area (41). However, the elastic value of the area at a location anatomically corresponding to the reference area (21) within the target elastic image (40) may be inaccurate due to movement of the object or unintended movement of the user, etc.

[0138] When there is an abnormality in the musculoskeletal system, such as ligaments, tendons, muscles, and cartilage, or in the nerves, the abnormality tends to manifest throughout the entire area rather than in just a part of it. This is similar to how the elasticity of a rubber band decreases as it loses its elasticity.

[0139] According to one embodiment of the present disclosure, an ultrasound imaging device (1000) can determine a target area (41) as an area of ​​the same tissue as the reference area (21) selected by the user within the target elastic image (40), based on the location of the reference area (21) and the reliability of the elastic value, and a high reliability of the elastic value.

[0140] For example, when the tissue to which the reference area (21) belongs is a common extensor tendon on one side, the ultrasound imaging device (1000) can determine the area of ​​the common extensor tendon on the other side among the areas within the target elasticity image (40) as a target candidate area, and determine the area with the highest reliability of the elasticity value among the target candidate areas as the target area (41).

[0141] Accordingly, the ultrasound imaging device (1000) can provide the user with a lesion area (41) suitable for a reference area (21) within the target elastic image (40).

[0142] FIG. 3 illustrates an embodiment in which an elastic image (20) for the normal side (1) is first acquired as a reference elastic image, and based on a reference area set on the reference elastic image, an ultrasound imaging device (1000) determines a target elastic image (40) and a target area (41) among elastic images for the lesion side (2).

[0143] According to one embodiment of the present disclosure, an ultrasound imaging device (1000) may first acquire an elastic image of the lesion side (2) as a reference elastic image, and determine a target elastic image and a target area among elastic images of the normal side (1) based on a reference area set on the reference elastic image.

[0144] According to one embodiment of the present disclosure, an ultrasound imaging device (1000) may acquire an elastic image of a previously acquired lesion side (2) (e.g., an elastic image of the lesion side (2) acquired and stored in a previous medical examination) as a reference elastic image, and may determine a target elastic image and a target region among newly acquired elastic images of the lesion side (2) based on a region of interest previously set on the reference elastic image (e.g., a previously set target region).

[0145] According to one embodiment of the present disclosure, an ultrasonic imaging device (1000) can provide difference information between a reference area (21) and a target area (41) by displaying together a reference elastic image (20) in which the location of a reference area (21) is indicated and a target elastic image (40) in which a target area (41) is indicated.

[0146] According to one embodiment of the present disclosure, an ultrasonic imaging device (1000) can provide difference information between a reference area (21) and a target area (41) by displaying elastic information (48) of a target area (41) together with elastic information (28) of a reference area (21).

[0147] According to one embodiment of the present disclosure, an ultrasonic imaging device (1000) can display a first reliability image indicating the reliability of the reference elastic image (20) and a second reliability image indicating the reliability of the target elastic image (40) together with a reference elastic image (20) and a target elastic image (40).

[0148] The elastic images (20, 40) can represent the degree of elasticity in color. Referring to FIG. 3, it can be seen that the elasticity value of the reference area (21) is 100 kPa, and the elasticity value of the target area (41) is between 150 kPa and 300 kPa. Through this information, the user can compare the elasticity values ​​for the area of ​​interest.

[0149] According to one embodiment of the present disclosure, an ultrasonic imaging device (1000) may receive user input that changes the position of a target region on a target elastic image. The ultrasonic imaging device (1000) may display elastic information of the moved target region together with elastic information of a reference region.

[0150] According to one embodiment of the present disclosure, an ultrasonic imaging device (1000) can adjust the depth of a target region in a target elastic image according to the depth of a reference region in a reference elastic image when the depth of a target region in a target elastic image is different from the depth of a reference region in a reference elastic image.

[0151] According to one embodiment of the present disclosure, when the elastic range of the target elastic image and the elastic range of the reference elastic image are different, the ultrasonic imaging device (1000) can adjust the elastic range of the target elastic image according to the elastic range of the reference elastic image.

[0152] FIG. 4 illustrates a flowchart of a method for comparing elastic values ​​using an ultrasonic imaging device (1000) according to one embodiment of the present disclosure.

[0153] In step S410, the ultrasonic imaging device (1000) can receive user input to set a reference area on a reference elastic image, which is an elastic image of one side of the left-right symmetrical parts of the object.

[0154] Bilateral symmetrical regions may include regions that are symmetrical with respect to the sagittal plane. For example, bilateral symmetrical regions may include, but are not limited to, the hands, feet, shoulders, elbows, knees, and wrists.

[0155] According to one embodiment of the present disclosure, an ultrasonic imaging device (1000) can acquire a reference elastic image based on receiving a user input to scan one side with a probe, and selecting a user interface to start imaging an elastic image.

[0156] According to one embodiment of the present disclosure, the ultrasonic imaging device (1000) may acquire a previously stored reference elastic image.

[0157] One side may be the normal side or the affected side. Additionally, one side may be the right side or the left side.

[0158] The reference area may be an area that serves as a standard for comparison with the target area. For example, if the target area is a lesion area, the reference area may be a normal area for comparison with the lesion area.

[0159] In step S420, the ultrasound imaging device (1000) can acquire at least one elastic image of the other side as it receives user input to scan the other side of the left-right symmetrical bilateral portion.

[0160] The ultrasonic imaging device (1000) can acquire an elastic image of the other side based on receiving user input to scan the other side with a probe, and selecting a user interface to start imaging an elastic image.

[0161] According to one embodiment of the present disclosure, the ultrasonic imaging device (1000) can acquire one elastic image of the other side. According to one embodiment of the present disclosure, the ultrasonic imaging device (1000) can acquire a plurality of elastic images of the other side.

[0162] In step S430, the ultrasonic imaging device (1000) can determine a target elastic image among at least one elastic image based on similarity with a reference elastic image.

[0163] The ultrasound imaging device (1000) can determine a target elastic image among at least one elastic image based on anatomical similarity with a reference elastic image. For example, the ultrasound imaging device (1000) can determine similarity based on the degree of alignment between a reference B-mode image corresponding to a reference elastic image and a target B-mode image corresponding to a target elastic image. The ultrasound imaging device (1000) can determine an elastic image with high similarity as the target elastic image.

[0164] In step S440, the ultrasonic imaging device (1000) can determine a target region on a determined target elastic image based on the location of a reference region within a reference elastic image.

[0165] The ultrasound imaging device (1000) can determine as the target area a region of the target elasticity image that is of the same type as the tissue of the reference area and has a reliability of elasticity value greater than or equal to the reference. For example, if the reference area within the reference elasticity image is set to a portion of the area representing the Achilles tendon, the ultrasound imaging device (1000) can determine as the target area a region within the target elasticity image that has a reliability of elasticity value greater than or equal to the reference among the areas representing the Achilles tendon on the other side. Accordingly, the reference area and the target area may not be regions corresponding in anatomical location.

[0166] To this end, the ultrasound imaging device (1000) can calculate the reliability of the elasticity value within the target elasticity image. Additionally, the ultrasound imaging device (1000) can determine the region within the target elasticity image corresponding to the tissue of the reference region as a target candidate region. Additionally, the ultrasound imaging device (1000) can determine the region with the highest reliability of the elasticity value among the target candidate regions as the target region.

[0167] In step S450, the ultrasound imaging device (1000) can provide information on the difference between the reference area and the target area by displaying together a reference elastic image in which the location of the reference area is indicated and a target elastic image in which the target area is indicated.

[0168] The ultrasonic imaging device (1000) can display elastic information of a target area along with elastic information of a reference area. The elastic information may include, but is not limited to, the average value, standard deviation value, minimum value, and maximum value of the elastic values ​​of the area. Additionally, the elastic information may include the average of the reliability of the elastic values ​​of the area.

[0169] The ultrasonic imaging device (1000) can display together a first reliability image representing the reliability of a reference elastic image and a second reliability image representing the reliability of a target elastic image.

[0170] The ultrasonic imaging device (1000) can receive user input that moves the position of a target area on a target elastic image. As the target area is moved, the ultrasonic imaging device (1000) can display elastic information of the moved target area.

[0171] The ultrasonic imaging device (1000) can convert and display the target elastic image so that the left and right sides of the target elastic image are reversed when the target elastic image is a mirror image of the reference elastic image.

[0172] The ultrasonic imaging device (1000) can convert and display the depth of the target elastic image based on the depth of the reference elastic image when the depth of the target elastic image is different from the depth of the reference elastic image.

[0173] When the elastic range of the target elastic image and the elastic range of the reference elastic image are different, the ultrasonic imaging device (1000) can adjust and display the elastic range of the target elastic image according to the elastic range of the reference elastic image.

[0174] The ultrasound imaging device (1000) can provide information regarding the progression of a lesion by comparing and displaying an elastic image of one side previously acquired and an elastic image of the same side currently acquired. For example, the ultrasound imaging device (1000) can acquire a previous target elastic image generated for one side. The ultrasound imaging device (1000) can acquire a new target elastic image upon receiving user input scanning one side. The ultrasound imaging device (1000) can determine a target area on the newly acquired target elastic image based on the location of the previous target area within the previous target elastic image. The ultrasound imaging device (1000) can provide information regarding the progression of a lesion located on the other side by displaying information regarding the elasticity of the target area together with information regarding the elasticity of the previous target area.

[0175] FIG. 5a illustrates a method according to one embodiment of the present disclosure in which an ultrasonic imaging device (1000) determines an elastic image of another side based on an elastic image of one side.

[0176] Referring to the first drawing of FIG. 5a, the ultrasound imaging device (1000) can display a reference elastic image (20) and a reference RMI (Reliable Measurement Index, 10) image, which are elastic images of one side of the left-right symmetrical region. The one side may be the normal side of the left-right symmetrical region or the lesion side. Additionally, the one side may be the left side or the right side. In FIG. 5a, for convenience of explanation, the left side is described as the reference side and the right side as the target side.

[0177] The ultrasonic imaging device (1000) can display a reference elastic image (20) on a reference B-mode image (22). For example, the ultrasonic imaging device (1000) can receive user input to start imaging of the elastic image and receive user input to scan an object with a probe. Upon receiving user input to start imaging of the elastic image, the ultrasonic imaging device (1000) can apply acoustic radiation force to a region of interest of the object to induce a transverse wave in the region of interest. After applying the acoustic radiation force, the ultrasonic imaging device (1000) can irradiate the object with an ultrasonic signal (e.g., a plane wave) to detect the anatomical structure of the object and the velocity of the induced transverse wave. The ultrasonic imaging device (1000) can generate a B-mode image (22) of a cross-section based on the ultrasonic echo signal received from the object. Additionally, the ultrasonic imaging device (1000) can detect the velocity of the transverse wave at points in the cross-section based on the received ultrasonic echo signal and generate a reference elastic image (20) based on the detected velocity of the transverse wave.

[0178] Additionally, the ultrasonic imaging device (1000) can acquire an RMI image (10) representing the reliability of elastic values ​​based on the received ultrasonic echo signal. For example, the ultrasonic imaging device (1000) can determine the magnitude of the transverse wave, the signal quality of the transverse wave, or the degree of noise of the transverse wave based on the received ultrasonic echo signal. Additionally, the ultrasonic imaging device (1000) can generate a reference RMI image (10) representing the reliability of elastic values ​​indicated by a reference elastic image (20) based on the magnitude of the transverse wave, the signal quality of the transverse wave, or the degree of noise of the transverse wave. For example, the ultrasonic imaging device (1000) can determine the reliability of elastic values ​​to be higher as the magnitude of the induced transverse wave increases, as the signal quality of the transverse wave increases, and as the degree of noise of the transverse wave decreases. The reliability of the RMI image can be expressed in color. For example, the reliability of the elastic value may be expressed in red as the reliability of the elastic value decreases, and the reliability of the elastic value may be expressed in green as the reliability of the elastic value increases.

[0179] The ultrasonic imaging device (1000) can display a reference elastic image (20) on a B-mode image (22). Additionally, the ultrasonic imaging device (1000) can display a reference RMI image (10) on a B-mode image (22).

[0180] Referring to Fig. 5a, the RMI images (10, 30a, 30b, 30c) can represent the reliability of the elasticity value in color.

[0181] The ultrasound imaging device (1000) can receive user input for setting a reference region (21) on a reference elastic image (20). The reference region (21) can be set by the user as a region to be compared with a target region. The user can set a region that anatomically corresponds to a lesion on the other side and has high reliability as the reference region (21) by referring to the reliability value expressed in the reference RMI image (10).

[0182] Upon receiving user input to set a reference area (21) on a reference elastic image (20), the ultrasonic imaging device (1000) can display the reference area (21) on the reference elastic image (20) and display an area (11) corresponding to the reference area (21) on the reference RMI image (10).

[0183] Referring to the second figure of FIG. 5a, the ultrasound imaging device (1000) can again receive user input for acquiring an elastic image of the other side among the left and right symmetrical parts. For example, the ultrasound imaging device (1000) can receive user input for selecting a button to start imaging of the elastic image. Upon receiving user input to scan the other side using a probe, the ultrasound imaging device (1000) can acquire a plurality of image sets. The plurality of image sets may include a plurality of B-mode images (42a, 42b, 42c), a plurality of elastic images (40a, 40b, 40c), and a plurality of RMI images (30a, 30b, 30c) indicating the reliability of the elastic values ​​of the plurality of elastic images (40a, 40b, 40c).

[0184] According to one embodiment of the present disclosure, an ultrasound imaging device (1000) may select an image set that includes a B-mode image showing a structure similar to the anatomical structure shown by a reference B-mode image (22) among a plurality of image sets, and an elastic image with high reliability of the elastic value of a region corresponding to the tissue to which the reference region (21) belongs. Additionally, the ultrasound imaging device (1000) may determine the elastic image included in the selected image set as a target elastic image (40a).

[0185] According to one embodiment of the present disclosure, an ultrasonic imaging device (1000) may display at least one of a plurality of elastic images (40a, 40b, 40c) as a candidate target elastic image and receive a user input selecting one of the at least one displayed candidate target elastic images as a target elastic image (40a).

[0186] Referring to the third figure of FIG. 5a, the ultrasound imaging device (1000) can determine a region corresponding to the tissue of the reference region (21) among the regions of the target elastic image (40a) as a target candidate region, and determine a portion of the determined regions with high reliability as the target region (41a). Additionally, the ultrasound imaging device (1000) can display a region (31a) corresponding to the target region (41a) on the target RMI image (30a).

[0187] FIG. 5b illustrates a method in which an ultrasonic imaging device (1000) displays a reference elastic image and a target elastic image by comparing them, according to one embodiment of the present disclosure.

[0188] Referring to FIG. 5b, based on receiving user input pressing the confirmation button (510) in the third drawing of FIG. 5a, the ultrasound imaging device (1000) can display a reference elastic image (20) and a reference area (21), which are elastic images of the left side, on the left side of the screen, and display a target elastic image (40a) and a target area (41a), which are elastic images of the right side, on the right side of the screen.

[0189] Additionally, the ultrasound imaging device (1000) may display a reference RMI image (10) along with a reference elastic image (20) on the left side of the screen, and a target RMI image (30a) along with a target elastic image (40a) on the right side of the screen. Additionally, the ultrasound imaging device (1000) may display identification information (27) of the area indicated by the reference elastic image (20) and identification information (47) of the area indicated by the target elastic image (40a). The identification information (27 or 47) may be entered by the user before or after scanning each elastic image (20).

[0190] Additionally, the ultrasonic imaging device (1000) can display elastic information (28, 29) of a reference area (21) and elastic information (48, 49) of a target area (41a). The ultrasonic imaging device (1000) can display a graph (29) showing the average elastic value of the reference area (21) and a graph (49) showing the average elastic value of the target area (41a).

[0191] Accordingly, the user can compare the elastic image (20) of the normal side with the elastic image (40a) of the lesion side, and by comparing the elastic information (28) of the normal side with the elastic information (48) of the lesion side, the presence or absence of a lesion or the severity of the lesion can be confirmed.

[0192] According to one embodiment of the present disclosure, the ultrasound imaging device (1000) can receive user input to change the position of the target area (41a). Additionally, according to one embodiment of the present disclosure, the ultrasound imaging device (1000) can receive user input to change the position of the reference area (21). Accordingly, the user can change the position of the target area (41a) while checking the position of the reference area (21), and can change the position of the reference area (21) while checking the position of the target area (41a).

[0193] According to one embodiment of the present disclosure, an ultrasonic imaging device (1000) may display a user interface for changing a target elastic image (40a). The ultrasonic imaging device (1000) may receive a user input through the user interface to change the target elastic image (40a) to another elastic image (40b or 40c of FIG. 5a).

[0194] FIG. 6 illustrates a method in which an ultrasound imaging device (1000) determines a target elastic image and a target region among a plurality of elastic images according to an embodiment of the present disclosure. FIG. 7 illustrates a method in which an ultrasound imaging device (1000) determines a target elastic image among a plurality of elastic images based on anatomical similarity according to an embodiment of the present disclosure. FIG. 8 illustrates a method in which an ultrasound imaging device (1000) determines a target region within a target elastic image according to an embodiment of the present disclosure.

[0195] Referring to FIG. 6, the ultrasonic imaging device (1000) can acquire a reference elastic image (20) for one side and then acquire a plurality of image sets (Frames #1 to #5) for the other side. The ultrasonic imaging device (1000) can determine a target elastic image among the acquired plurality of elastic images (40a to 40e) and determine a target region on the target elastic image.

[0196] The ultrasound imaging device (1000) can receive an ultrasound echo signal regarding the anatomical structure of one side and the induced transverse wave from the subject upon receiving a user input to acquire an elastic image of one side of the left-right symmetrical region. Based on the ultrasound echo signal, the ultrasound imaging device (1000) can acquire a reference B-mode image (22) representing the anatomical structure of one side, a reference elastic image (20) representing the elasticity of one side, and a reference RMI image (10) representing the reliability of the elastic value within the reference elastic image (20) as a single set of images.

[0197] Subsequently, upon receiving user input to acquire an elastic image of the other side, the ultrasound imaging device (1000) can acquire a B-mode image (42a) showing the anatomical structure of the other side, an elastic image (40a) showing the elasticity of the other side, and an RMI image (30a) showing the reliability of the elastic value within the elastic image (40a) as a single image set. Upon receiving user input to acquire an elastic image of the other side, the ultrasound imaging device (1000) can acquire a plurality of image sets (Frames #1 to #5).

[0198] The ultrasound imaging device (1000) may exclude B-mode images that are not similar to the reference B-mode image (22) among a plurality of B-mode images (42a, 42b, 42c, 42d, 42e) of the other side. For example, looking at the left diagram of FIG. 7, the ultrasound imaging device (1000) may determine a boundary (25) that divides the B-mode image (22) into an upper grayscale part and a lower blackscale part based on image data within the reference B-mode image (22). The upper grayscale part may be a different tissue from the lower blackscale part. The ultrasound imaging device (1000) may determine an anatomical boundary (25) within the reference B-mode image (22) based on the separated region. Additionally, the ultrasound imaging device (1000) may determine an anatomical boundary (45) within the B-mode image (42) based on image data within the B-mode image (42) of the other side.

[0199] The ultrasound imaging device (1000) can determine the similarity between the reference B-mode image (22) and the B-mode image (42) for the other side by comparing the anatomical boundary (25) in the reference B-mode image (22) with the anatomical boundary (45) in the B-mode image (42) for the other side.

[0200] According to one embodiment of the present disclosure, an ultrasound imaging device (1000) can determine similarity by comparing anatomical structures near an elastic image region (71 or 73) among regions of a B-mode image (22 or 42).

[0201] According to one embodiment of the present disclosure, the ultrasound imaging device (1000) can determine the similarity after converting the other side B-mode image (42) to match the reference B-mode image (22). For example, the ultrasound imaging device (1000) can change the left and right sides of the other side B-mode image (42) when the other side B-mode image (42) is a mirror image of the reference B-mode image (22). Additionally, the ultrasound imaging device (1000) can adjust the depth of the other side B-mode image (42) to match the depth of the reference B-mode image (22).

[0202] Referring again to FIG. 6, the ultrasound imaging device (1000) can determine that among a plurality of other side B-mode images (42a, 42b, 42c, 42d, 42e), the first B-mode image (42a) has a similarity to a reference B-mode image (22) that is less than or equal to a reference, and exclude the first image set (Frame #1).

[0203] The ultrasound imaging device (1000) may exclude an image set containing an RMI image in which the reliability of the elastic value is lower than the reference RMI image (10) when compared with the reference RMI image (10) among the remaining multiple RMI images (30b, 30c, 30d, 30e) on the other side. For example, the RMI image (30d) belonging to the fourth image set (Frame #4) shows an overall low value when compared with the reference RMI image (10). Since a low RMI value implies low reliability of the elastic value, the ultrasound imaging device (1000) may exclude the fourth image set (Frame #4).

[0204] The ultrasound imaging device (1000) may exclude an image set containing an elastic image in which the uniformity of the elastic value of the region corresponding to the reference region of one side among the remaining multiple elastic images (40b, 40c, 40e) of the other side is below the reference. For example, when examining the region (45e) corresponding to the reference region (21) in the elastic image (40e) belonging to the fifth image set (Frame #5), it indicates that the elastic value is non-uniform. Generally, since elastic values ​​tend to be uniform within the same tissue, the ultrasound imaging device may exclude the fifth image set (Frame #5) even if the reliability of the elastic value is calculated to be high.

[0205] The ultrasound imaging device (1000) can determine the remaining second elastic image (40b) and third elastic image (40c) as candidate target elastic images. The ultrasound imaging device (1000) can determine a primary target region (45b or 45c) that is anatomically corresponding to the reference region (21). Additionally, the ultrasound imaging device (1000) can determine a final target region (41b or 41c) based on the primary target region (45b or 45c) and the reliability of the elastic values.

[0206] For example, referring to FIG. 8, the ultrasound imaging device (1000) can determine a region (35) in the target RMI image (30) corresponding to a reference region (21) in the reference elastic image (20) based on the similarity between the reference B-mode image (22) and the target B-mode image (42).

[0207] The reference region (21) and the region (35) within the target RMI image (30) may be regions of anatomically corresponding locations within the same type of tissue (e.g., common extensor muscles). Additionally, the ultrasound imaging device (1000) may determine the region (37) of the tissue to which the determined region (35) belongs as a target candidate region. For example, the ultrasound imaging device (1000) may determine the region (37) of the common extensor muscles to which the determined region (35) belongs as a target candidate region. For example, the ultrasound imaging device (1000) may determine the range of one tissue that is distinguished from other tissues based on the pattern, hue, and brightness, etc., shown in the B-mode image (42). The tissue may be a musculoskeletal tissue and may include, but is not limited to, ligaments, tendons, muscles, cartilage, nerves, etc.

[0208] The ultrasound imaging device (1000) can determine the region (31) with the highest reliability of elasticity value among the target candidate regions (37) as the target region. Accordingly, the reference region (21) and the target region (31) may be regions with different anatomical locations.

[0209] According to one embodiment of the present disclosure, an ultrasound imaging device (1000) may determine one of candidate target elastic images (40b and 40c) as the target elastic image (40b or 40c). For example, the ultrasound imaging device (1000) may determine the candidate target elastic image as the target elastic image (40b or 40c) that includes a target region (31b or 31c) among the target regions (31b, 31c) within the RMI images (30b, 30c) in which the average or total sum of the reliability of elastic values ​​is higher. As illustrated in FIG. 5b, the ultrasound imaging device (1000) may display the determined target elastic image (40b or 40c) together with the reference elastic image (20).

[0210] According to one embodiment of the present disclosure, an ultrasound imaging device (1000) may display candidate target elastic images (40b and 40c) and receive user input to select one of the displayed candidate target elastic images (40b and 40c) as the target elastic image (40b or 40c).

[0211] FIG. 9 illustrates a method in which an ultrasound imaging device (1000) receives user input to change a target area according to one embodiment of the present disclosure.

[0212] Referring to FIG. 9, the ultrasound imaging device (1000) can display a target elastic image (40) with a target area (41) displayed along with a reference elastic image (20) with a reference area (21) displayed.

[0213] The ultrasonic imaging device (1000) can receive user input that changes the target area (41) within the target elastic image (40). For example, based on receiving user input that selects and drags an image representing the target area (41), the ultrasonic imaging device (1000) can move the target area (41) according to the user input.

[0214] The ultrasonic imaging device (1000) can newly display elastic information (48, 49) for the moved target area (41).

[0215] Accordingly, the user can check the elastic information (48, 49) of the moved target area (41) while moving the target area (41), and can select a desired target area other than the target area (41) determined by the ultrasonic imaging device (1000). Additionally, the user can select the target area (41) on the target elastic image (40) while simultaneously checking the reference area (21) on the reference elastic image (20).

[0216] Additionally, the ultrasonic imaging device (1000) can receive user input to change the reference area (21) within the reference elastic image (20). The ultrasonic imaging device (1000) can display new elastic information (28, 29) for the moved reference area (21).

[0217] FIG. 10 illustrates a method in which an ultrasonic imaging device (1000) receives a user input that changes a target elastic image, according to one embodiment of the present disclosure.

[0218] Referring to FIG. 10, the ultrasound imaging device (1000) can display a reference elastic image (20) and a reference area (21) for one side of the left-right symmetrical region. The ultrasound imaging device (1000) can display a user interface (15a and 15b) for selecting one of a plurality of elastic images for the other side as a target elastic image (40).

[0219] According to one embodiment of the present disclosure, a plurality of elastic images may be a plurality of candidate target elastic images (e.g., 40b and 40c of FIG. 6). The ultrasound imaging device (1000) may display the elastic image (40) with the highest reliability of the elastic value of the target region (41) among the plurality of candidate target elastic images as an elastic image for the other side. Additionally, the ultrasound imaging device (1000) may display an RMI image (30) corresponding to the displayed elastic image (40) and elastic information (48) for the target region (41).

[0220] The ultrasonic imaging device (1000) can display sequence information (17) indicating which elastic image (40) displayed among a plurality of candidate target elastic images is the number of elastic images.

[0221] Based on receiving user input for selecting a user interface (15b) for displaying the next elastic image for the other side, the ultrasound imaging device (1000) can display the candidate target elastic image with the second highest reliability of the elastic value of the target area among a plurality of candidate target elastic images as the elastic image for the other side. Additionally, the ultrasound imaging device (1000) can display the changed elastic image and elastic information for the target area.

[0222] According to one embodiment of the present disclosure, a plurality of elastic images may be total elastic images obtained with respect to the other side (e.g., 40a to 40e of FIG. 6).

[0223] Accordingly, the user can directly view and select a target elastic image to compare with the reference elastic image. Additionally, the user can select a target elastic image (40) while viewing the reference elastic image (20).

[0224] FIG. 11 is a flowchart of a method in which an ultrasonic imaging device (1000) displays a comparison between a previous elastic image and a current elastic image for a region of interest, according to one embodiment of the present disclosure.

[0225] In step S1110, the ultrasound imaging device (1000) can display a previous elastic image of the region of interest as a reference elastic image.

[0226] Previous elastic images of the region of interest may be stored in a storage device of the ultrasound imaging device (1000) in correspondence with identification information of the object and identification information of the region of interest. For example, the previous elastic image of the region of interest may be a target elastic image acquired for the region of interest in a previous medical examination.

[0227] The reference region within the reference elastography may be pre-set on the reference elastography. For example, the reference elastography may be a target elastography of the region of interest acquired during a previous examination, and the reference region may be a target region set within the target elastography acquired during the previous examination.

[0228] Based on receiving user input for acquiring a previous elastic image of a region of interest of an object, the ultrasound imaging device (1000) can acquire a previous elastic image of a region of interest.

[0229] As the ultrasound imaging device (1000) acquires a previous elastic image of the region of interest, it can display the acquired previous elastic image as a reference elastic image.

[0230] In step S1120, the ultrasound imaging device (1000) can acquire a target elastic image of the area of ​​interest as it receives user input to scan the area of ​​interest.

[0231] Upon receiving user input to start imaging of an elastic image and receiving user input to scan a region of interest, the ultrasound imaging device (1000) can acquire an elastic image of the region of interest.

[0232] According to one embodiment of the present disclosure, an ultrasound imaging device (1000) may acquire a plurality of elastic images of a region of interest and determine a target elastic image based on anatomical similarity with a reference elastic image or reliability of elastic values ​​among the plurality of elastic images.

[0233] In step S1130, the ultrasound imaging device (1000) can determine a target region in a target elastic image based on the location of a reference region in a reference elastic image.

[0234] The ultrasound imaging device (1000) can determine a target region within a target elastic image corresponding to a reference region based on the location of the reference region. For example, the ultrasound imaging device (1000) can determine a region with a high reliability of elasticity value among the regions within the target elastic image representing the tissue to which the reference region belongs as the target region.

[0235] In step S1140, the ultrasound imaging device (1000) can provide information regarding the progression of a lesion within the area of ​​interest by displaying elastic information of the target area together with elastic information of the reference area.

[0236] The ultrasonic imaging device (1000) can display a target elastic image with a target area marked and a reference elastic image with a reference area marked together. Additionally, the ultrasonic imaging device (1000) can display elastic information of the reference area and elastic information of the target area together.

[0237] Accordingly, by providing previous elastic information of the lesion within the area of ​​interest and current elastic information of the lesion, the ultrasound imaging device (1000) can provide information regarding the course of the lesion to the user.

[0238] FIG. 12 illustrates a method in which an ultrasonic imaging device (1000) displays a comparison between a previous elastic image and a current elastic image for a region of interest, according to one embodiment of the present disclosure.

[0239] Referring to FIG. 12, based on receiving user input to acquire a previous elastic image of a region of interest of a subject, the ultrasound imaging device (1000) can acquire a previous elastic image of a region of interest. The previous elastic image may be a target elastic image acquired for a region of interest in a previous medical examination.

[0240] As the ultrasound imaging device (1000) acquires a previous elastic image of the region of interest, it can display the acquired previous elastic image as a reference elastic image (20). The ultrasound imaging device (1000) can display a previous RMI image (10) corresponding to the previous elastic image.

[0241] The ultrasonic imaging device (1000) can display a reference region (21) in a reference elastic image (20) and display a region (11) representing the reference region in a previous RMI image (10).

[0242] The ultrasound imaging device (1000) can display the date and time (91) when the previous elastic image was acquired. Additionally, the ultrasound imaging device (1000) can display identification information (93) of the area of ​​interest.

[0243] Upon receiving user input for imaging an elastic image and receiving user input for scanning a region of interest, the ultrasound imaging device (1000) can acquire an elastic image of the region of interest. The ultrasound imaging device (1000) can display the elastic image of the region of interest as a target elastic image (40).

[0244] According to one embodiment of the present disclosure, an ultrasound imaging device (1000) may acquire a plurality of elastic images of a region of interest, determine one of the plurality of elastic images as a target elastic image (40), and display the determined target elastic image (40).

[0245] The ultrasonic imaging device (1000) can determine a target area (41) to compare elastic values ​​with a reference area on a target elastic image (40). The ultrasonic imaging device (1000) can display the target area (41) on the target elastic image (40). The ultrasonic imaging device (1000) can display a target RMI image (30) corresponding to the target elastic image (40) and display an area (31) representing the target area on the target RMI image (30).

[0246] The ultrasound imaging device (1000) can display the date and time (95) when the target elastic image was acquired. Additionally, the ultrasound imaging device (1000) can display identification information (97) of the area of ​​interest.

[0247] The ultrasonic imaging device (1000) can display a target elastic image (40) with a target area (41) and a reference elastic image (20) with a reference area (21) displayed together. Additionally, the ultrasonic imaging device (1000) can display elastic information (28, 29) of the reference area (21) and elastic information (48, 49) of the target area (41) together.

[0248] FIG. 13 illustrates a method in which an ultrasonic imaging device (1000) displays a target elastic image according to the left and right directions of a reference elastic image, according to one embodiment of the present disclosure.

[0249] Referring to FIG. 13, the ultrasonic imaging device (1000) can display the target elastic image (40) with the left and right sides reversed when the target elastic image (40) is a mirror image of the reference elastic image (20).

[0250] Referring to the first drawing of FIG. 13, the ultrasound imaging device (1000) can acquire a reference elastic image (20) for one side of an object that is symmetrical with respect to the limb plane, and can display the acquired reference elastic image (20).

[0251] Referring to the second drawing of FIG. 13, the ultrasound imaging device (1000) can acquire a target elastic image (40) for a part of an object that is symmetrical with respect to the limb plane. The target elastic image (40) acquired for the part of the object may be reversed left and right when compared to a reference elastic image (20). As the ultrasound imaging device (1000) identifies that the acquired target elastic image (40) is a mirror image of the reference elastic image (20), it can convert the target elastic image (40) so that the left and right sides of the target elastic image (40) are reversed, thereby generating a target elastic image (40_1) with reversed left and right sides.

[0252] Referring to the third figure of FIG. 13, the ultrasound imaging device (1000) can display a reference elastic image (20) and a target elastic image (40_1) with the left and right sides reversed together. Accordingly, as the left and right directions of the reference elastic image (20) and the target elastic image (40) become the same, the user can more easily compare the reference elastic image (20) and the target elastic image (40).

[0253] FIG. 14 illustrates a method in which an ultrasonic imaging device (1000) displays a target elastic image according to the depth of a reference elastic image, according to one embodiment of the present disclosure.

[0254] Referring to FIG. 14, the ultrasonic imaging device (1000) can change the depth of the target elastic image (40) to match the depth of the reference elastic image (20) when the depth of the target elastic image (40) is different from the depth of the reference elastic image (20).

[0255] Referring to the first drawing of FIG. 14, the ultrasound imaging device (1000) can acquire a reference elastic image (20) for one side of an object that is symmetrical with respect to the limb plane, and can display the acquired reference elastic image (20).

[0256] Referring to the second drawing of FIG. 14, the ultrasound imaging device (1000) can acquire a target elastic image (40) for a part of an object that is symmetrical with respect to the limb plane. The depth of the object expressed in the target elastic image (40) may be different from the depth of the object expressed in the reference elastic image (20). Based on the determination that the depth of the target elastic image (40) is different from the depth of the reference elastic image (20), the ultrasound imaging device (1000) can convert the target elastic image (40) so that the depth of the object expressed in the target elastic image (40) becomes the same as the depth of the object expressed in the reference elastic image (20).

[0257] Referring to the third figure of FIG. 14, the ultrasound imaging device (1000) can display a reference elastic image (20) and a depth-adjusted target elastic image (40_1) together. As the depths of the reference elastic image (20) and the target elastic image (40) become equal, the user can more easily compare the reference elastic image (20) and the target elastic image (40).

[0258] FIG. 15 illustrates a method in which an ultrasonic imaging device (1000) displays a target elastic image according to the elastic range of a reference elastic image, according to one embodiment of the present disclosure.

[0259] Referring to FIG. 15, the ultrasonic imaging device (1000) can convert the elastic range (1503) of the target elastic image (40) to match the elastic range (1501) of the reference elastic image (20) when the elastic range (1503) of the target elastic image (40) is different from the elastic range (1501) of the reference elastic image (20).

[0260] Referring to the first drawing of FIG. 15, the ultrasound imaging device (1000) can acquire a reference elastic image (20) for one side of an object that is symmetrical with respect to the limb plane, and can display the acquired reference elastic image (20).

[0261] Referring to the second drawing of FIG. 15, the ultrasound imaging device (1000) can acquire a target elastic image (40) for a part of an object that is symmetrical to the left and right with respect to the limb plane. While the elastic range (1501) of the reference elastic image (20) is 0 to 600 kPa, the elastic range (1503) of the target elastic image (40) may be 0 to 400 kPa. Based on determining that the elastic range (1503) of the target elastic image (40) is different from the elastic range (1501) of the reference elastic image (20), the ultrasound imaging device (1000) can change the elastic range (1503) of the target elastic image (40) so that the elastic range (1503) of the target elastic image (40) becomes the same as the elastic range (1501) of the reference elastic image (20).

[0262] As the elastic range corresponding to the same color range changes, the color expressed in the elastic image may change. For example, as the elastic range (1503) of the target elastic image (40) changes from 400 kPa to 600 kPa, it can be seen that the color representing the same elastic value changes from the red side to the blue side.

[0263] Referring to the third figure of FIG. 15, the ultrasonic imaging device (1000) can display a reference elastic image (20) and a target elastic image (40_1) with an adjustable elastic range together. As the elastic ranges of the reference elastic image (20) and the target elastic image (40_1) become the same, the colors representing the same elastic value in the reference elastic image (20) and the target elastic image (40_1) can become the same. Accordingly, the user can more easily compare the reference elastic image and the target elastic image (40).

Claims

1. In an ultrasound imaging device, Ultrasonic transceiver module; probe; display; Memory for storing instructions; It includes at least one processor comprising processing circuitry, and When the above instructions are executed individually or collectively by the at least one processor, the ultrasound imaging device, Based on receiving user input to set a reference region on a reference elastic image, which is an elastic image of one of the left-right symmetrical parts of an object, information regarding the elasticity of the reference region is obtained, and Upon receiving user input to scan the other side of the left-right symmetrical bilateral portions using the above probe, the ultrasonic transceiver module is controlled to acquire at least one elastic image of the other side, and A target elastic image among the at least one elastic image is determined based on similarity with the reference elastic image above, and Based on the position of the reference region within the reference elastic image, a target region is determined on the determined target elastic image, and An ultrasound imaging device that provides difference information between a reference region and a target region by displaying together, through the above display, a reference elastic image showing the location of the reference region and a target elastic image showing the target region.

2. In Paragraph 1, When the above instructions are executed by the at least one processor, the at least one processor, An ultrasound imaging device that determines, on the above-determined target elasticity image, as the target area a tissue of the same type as the tissue of the reference area, wherein the reliability of the elasticity value is greater than or equal to the reference.

3. In Paragraph 2, When the above instructions are executed by the at least one processor, the at least one processor, Calculate the reliability of the elasticity value within the above target elasticity image, and The region within the target elastic image corresponding to the organization of the reference region is determined as a target candidate region, and An ultrasonic imaging device that determines the region with the highest reliability of elasticity values ​​within the above-mentioned target candidate region as the above-mentioned target region.

4. In Paragraph 1, When the above instructions are executed by the at least one processor, the at least one processor, An ultrasonic imaging device that displays elastic information of the target area together with elastic information of the reference area.

5. In Paragraph 4, When the above instructions are executed by the at least one processor, the at least one processor, An ultrasonic imaging device that displays together a first reliability image representing the reliability of the reference elastic image and a second reliability image representing the reliability of the target elastic image.

6. In Paragraph 4, When the above instructions are executed by the at least one processor, the at least one processor, An ultrasonic imaging device that displays elastic information of the moved target area upon receiving user input to move the position of the target area on the target elastic image.

7. In Paragraph 1, When the above instructions are executed by the at least one processor, the at least one processor, Acquire a previous target elastic image generated for the other side prior to the acquisition of the above target elastic image, and Upon receiving user input to re-scan the other side mentioned above, the next target elastic image is acquired, and Based on the location of the previous target region within the previous target elastic image, the next target region is determined on the acquired next target elastic image, and An ultrasound imaging device that provides information regarding the progression of a lesion located on the other side by displaying information regarding the elasticity of the next target area together with information regarding the elasticity of the previous target area.

8. In Paragraph 1, When the above instructions are executed by the at least one processor, the at least one processor, Ultrasonic imaging device that converts and displays the target elastic image so that the left and right sides of the target elastic image are reversed when the target elastic image is a mirror image of the reference elastic image.

9. In Paragraph 1, When the above instructions are executed by the at least one processor, the at least one processor, An ultrasonic imaging device that converts and displays the depth of the target elastic image based on the depth of the reference elastic image when the depth of the target elastic image is different from the depth of the reference elastic image.

10. In Paragraph 1, When the above instructions are executed by the at least one processor, the at least one processor, An ultrasonic imaging device that, when the elastic range of the target elastic image and the elastic range of the reference elastic image are different, adjusts and displays the elastic range of the target elastic image according to the elastic range of the reference elastic image.

11. In a method for providing elastic images, A step of obtaining information regarding the elasticity of a reference area based on receiving user input to set a reference area on a reference elastic image, which is an elastic image of one of the left-right symmetrical parts of an object; A step of acquiring at least one elastic image of the other side by receiving user input to scan the other side of the left-right symmetrical bilateral portions using a probe; A step of determining a target elastic image among the at least one elastic image based on similarity with the reference elastic image; A step of determining a target region on the determined target elastic image based on the position of the reference region within the reference elastic image; and A method comprising the step of providing difference information between the reference region and the target region by displaying together the reference elastic image showing the location of the reference region and the target elastic image showing the target region.

12. In Paragraph 11, The step of determining a target region on the determined target elastic image based on the position of the reference region within the reference elastic image is: A method comprising the step of determining, on the determined target elasticity image, a region as the target region that is of the same type as the tissue of the reference region and has a reliability of elasticity value greater than or equal to the reference.

13. In Paragraph 12, The step of determining as the target area an area that is of the same type as the organization of the reference area above, but has a reliability of elasticity value higher than the reference, is: A step of calculating the reliability of the elasticity value within the target elasticity image; A step of determining a region within the target elastic image corresponding to the tissue of the reference region as a target candidate region; and A method comprising the step of determining the region with the highest reliability of elasticity values ​​within the target candidate region as the target region.

14. In Paragraph 11, The above elastic image providing method is, A method further comprising the step of displaying elastic information of the target area together with elastic information of the reference area.

15. In Paragraph 14, The above elastic image providing method is, A method further comprising the step of displaying together a first reliability image representing the reliability of the reference elastic image and a second reliability image representing the reliability of the target elastic image.

Images