Elastic imaging system

Abstract

The present application relates to the technical field of ultrasound, in particular to an elastic imaging system. When the first pressure measured by the first liquid injection pressure detection device reaches the first target pressure value, the shear wave elastic imaging probe of the elastic imaging system emits the first ultrasonic signal to generate the shear wave; when the second pressure measured by the second liquid injection pressure detection device reaches the second target pressure value, the shear wave is generated by the vibrator; the processing assembly determines the target detection probe from the shear wave elastic imaging probe or / and the transient elastic imaging probe, and controls the target detection probe to emit the second ultrasonic signal to the tissue to be measured and receive the ultrasonic echo signal after the shear wave is generated by the target detection probe; the ultrasonic data is generated according to the ultrasonic echo signal; the processing result corresponding to the tissue to be measured is determined by processing the ultrasonic data. The accuracy of the determined processing result is ensured, the use is more convenient, and the detection efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of ultrasound technology, and more specifically to an elastography system. Background Technology

[0002] With the rapid development of medical equipment, elastography has emerged. Elastography quantitatively estimates and images the distribution of elastic modulus in tissues. Currently, elastography technology has become a research hotspot in medical ultrasound imaging, and is widely used in the detection and evaluation of lesions caused by the breast, prostate, atherosclerotic plaques, myocardial dynamics, and high-intensity focused ultrasound and radiofrequency ablation.

[0003] Currently, elastography systems typically include only one type of detection probe. To improve detection accuracy, different elastography systems need to be selected for different detection objects. Therefore, the use of existing elastography systems is very limited, reducing detection efficiency. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide an elastic imaging system, which aims to solve the problem that the existing technology has great limitations in the use of elastic imaging systems and reduces detection efficiency.

[0005] According to a first aspect, embodiments of the present invention provide an elastic imaging system, comprising: at least one shear wave elastic imaging probe, at least one instantaneous elastic imaging probe, at least one first injection pressure detection device, at least one second injection pressure detection device, and a processing component. Each shear wave elastic imaging probe and each instantaneous elastic imaging probe are connected to the processing component via different interfaces. Each shear wave elastic imaging probe is connected to each of the first injection pressure detection devices in a one-to-one correspondence, and each instantaneous elastic imaging probe is connected to each of the second injection pressure detection devices in a one-to-one correspondence. Each instantaneous elastic imaging probe includes a vibrator, wherein:

[0006] A shear wave elastography probe is used to emit a first ultrasonic signal to generate a shear wave when a first pressure measured by a first injection pressure detection device reaches a first target pressure value. The first pressure is the relative pressure between the shear wave elastography probe and the tissue to be tested.

[0007] A transient elastography probe is used to generate a shear wave based on a vibrator when the second pressure measured by the second injection pressure detection device reaches the second target pressure value. The second pressure is the relative pressure between the transient elastography probe and the tissue to be tested.

[0008] A processing component for determining a target detection probe from at least one shear wave elastography probe and / or at least one transient elastography probe, and adjusting a first pressure and / or a second pressure based on the determined target detection probe, so that the first pressure reaches a first target pressure value and / or the second pressure reaches a second target pressure value;

[0009] The processing component is also used to control the target detection probe to emit a second ultrasonic signal to the tissue under test and receive the ultrasonic echo signal after the target detection probe generates a shear wave; generate ultrasonic data based on the ultrasonic echo signal; process the ultrasonic data and determine the processing result corresponding to the tissue under test.

[0010] The elastography system provided in this invention allows for the selection of a suitable elastography probe to detect the tissue under test. Furthermore, detection only occurs when the selected probe applies pressure that meets the required level, ensuring the accuracy and stability of the processing results. In addition, this elastography system can simultaneously provide at least one shear wave elastography probe and at least one instantaneous elastography probe, making it more convenient to use and further improving detection efficiency.

[0011] In conjunction with the first aspect, in the first embodiment of the first aspect, the processing component is used to acquire a tissue image of the tissue to be tested, identify the tissue image, determine the preset requirements of the ultrasound data, and determine the shear wave elastography probe or / and the transient elastography probe as the target detection probe according to the preset requirements of the ultrasound data.

[0012] In conjunction with the first embodiment of the first aspect, in the second embodiment of the first aspect, the preset requirement is the detection results of ultrasound data characterizing the tissue under test in the depth direction and the horizontal direction. The processing component is further used to determine the shear wave elastography probe as the target detection probe based on the preset requirement of ultrasound data characterizing the tissue under test in the horizontal direction; and to determine the instantaneous elastography probe as the target detection probe based on the preset requirement of ultrasound data characterizing the tissue under test in the depth direction.

[0013] In conjunction with the first aspect, in the third embodiment of the first aspect, the first injection pressure detection device includes a pressure receiving device, a pressure measuring device, an injection device, and a connecting device. The connecting device is connected to the pressure receiving device through a pressure tap, the connecting device is connected to the pressure measuring device through a pressure measuring port, and the connecting device is connected to the injection device through a filling port. The filling port has a sealing device, wherein:

[0014] A pressure receiving device for receiving a first pressure based on the liquid inside it and converting the first pressure into liquid pressure;

[0015] The liquid injection device is used to inject liquid into the pressure receiving device;

[0016] A pressure measuring device for detecting liquid pressure and calculating a first pressure value based on the liquid pressure value.

[0017] In conjunction with the third embodiment of the first aspect, in the fourth embodiment of the first aspect, the pressure measuring device includes: a pressure conversion device, a signal processing device, a sampling device, and a transmission device, wherein one end of the pressure conversion device is connected to the liquid container of the pressure receiving device through the pressure measuring port and the pressure sampling port of the connecting device, the other end of the pressure conversion device is connected to the signal processing device, the other end of the signal processing device is connected to the sampling device, and the signal processing device is connected to the transmission device.

[0018] A pressure conversion device is used to detect the liquid pressure obtained by the pressure receiving device from the first pressure conversion, convert the liquid pressure into an initial electrical signal, and transmit the initial electrical signal to a signal processing device.

[0019] A signal processing device is used to process an initial electrical signal, generate a target electrical signal, and transmit the target electrical signal to a sampling device;

[0020] A sampling device is used to receive a target electrical signal, convert the target electrical signal into a target digital signal, and transmit the target digital signal to a transmission device;

[0021] A transmission device is used to receive the target digital signal output by the sampling device and transmit the target digital signal to the processing component, wherein the processing component calculates the pressure value corresponding to the first pressure based on the target digital signal.

[0022] In conjunction with the third embodiment of the first aspect, in the fifth embodiment of the first aspect, the pressure conversion device includes a pressure input chamber, a standard pressure chamber, a pressure-sensitive resistor, and a power supply. One end of the pressure-sensitive resistor is connected to the pressure input chamber, and the other end is connected to the standard pressure chamber. The other end of the pressure input chamber is connected to a liquid container via a pressure measuring port and a pressure tapping port of the connecting device. The positive terminal of the power supply is connected to the positive terminal of the pressure-sensitive resistor, and the negative terminal of the power supply is connected to the negative terminal of the pressure-sensitive resistor.

[0023] The pressure conversion device receives liquid pressure from the pressure input chamber, converts it into a resistance value based on the pressure-sensitive resistor and the standard pressure chamber, and determines the current magnitude within the pressure conversion device based on the resistance value, so as to convert the liquid pressure into an initial electrical signal.

[0024] In conjunction with the first aspect, in the sixth embodiment of the first aspect, the elastic imaging system further includes: a display component connected to the processing component;

[0025] The processing component is further configured to acquire a first pressure threshold corresponding to the shear wave elastography probe for the tissue under test and / or a second pressure threshold corresponding to the transient elastography probe for the tissue under test; and compare the first pressure with the first pressure threshold and / or compare the second pressure with the second pressure threshold; when the first pressure is greater than the first pressure threshold and / or the second pressure is greater than the second pressure threshold, calculate the difference between the first pressure and the first pressure threshold to obtain a first difference and / or the difference between the second pressure and the second pressure threshold to obtain a second difference; when the first pressure is greater than the first pressure threshold and / or the second pressure is greater than the second pressure threshold, control the display component to display information indicating a higher pressure, and display the first difference and / or the second difference; when the first pressure is less than the first pressure threshold and / or the second pressure is less than the second pressure threshold, control the display component to display information indicating a lower pressure, and display the first difference and / or the second difference. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the elastic imaging system provided in the embodiments of the present invention;

[0028] Figure 2 This is a schematic diagram of the pressure conversion device in the pressure measuring device provided in the embodiments of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of an elastic imaging system provided by another embodiment of the present invention;

[0030] in:

[0031] 1. Shear wave elastography probe;

[0032] 2. Transient elastography probe;

[0033] 21. Vibrator;

[0034] 3. First injection pressure detection device;

[0035] 3211. Pressure input chamber;

[0036] 3212, Standard Pressure Chamber;

[0037] 3213. Varistor;

[0038] 3214. Power supply;

[0039] 4. Second injection pressure detection device;

[0040] 5. Processing components;

[0041] 6. Display components. Detailed Implementation

[0042] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] In the description of this invention, it should be noted that the term "and / or" as used in this application specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0045] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] In one embodiment of this application, such as Figure 1As shown, an elastic imaging system is provided, comprising: at least one shear wave elastic imaging probe 1, at least one instantaneous elastic imaging probe 2, at least one first injection pressure detection device 3, at least one second injection pressure detection device 4, and a processing component 5. Each shear wave elastic imaging probe 1 and each instantaneous elastic imaging probe 2 is connected to the processing component 5 via different interfaces. Each shear wave elastic imaging probe 1 is connected to each first injection pressure detection device 3 in a one-to-one correspondence, and each instantaneous elastic imaging probe 2 is connected to each second injection pressure detection device 4 in a one-to-one correspondence. Each instantaneous elastic imaging probe 2 includes a vibrator 21, wherein:

[0048] The shear wave elastography probe 1 is used to emit a first ultrasonic signal to generate a shear wave when the first pressure measured by the first injection pressure detection device 3 reaches a first target pressure value. The first pressure refers to the relative pressure between the shear wave elastography probe 1 and the tissue to be measured.

[0049] The tissue to be tested can be the liver, thyroid gland, or breast, etc.

[0050] Among them, the shear wave elastography probe 1 and the first injection pressure detection device 3 can be independent of each other and detachably connected; or they can be integrated. Similarly, the instantaneous elastography probe 2 and the second injection pressure detection device 4 can be independent of each other and detachably connected; or they can be integrated.

[0051] Specifically, the first injection pressure detection device is located between the shear wave elastography probe 1 and the skin surface corresponding to the tissue to be tested. The shear wave elastography probe 1 can use the first injection pressure detection device 3 to measure the first pressure between the shear wave elastography probe 1 and the skin surface corresponding to the tissue to be tested. The processing component 5 compares the measured first pressure with a first target pressure value. When the first pressure reaches the first target pressure value, the shear wave elastography probe 1 is controlled to emit a first ultrasound signal to generate shear waves inside the tissue to be tested. When the first pressure does not reach the first target pressure value, the shear wave elastography probe 1 is adjusted under the control of the processing component 5 to make the first pressure reach the first target pressure value. The shear wave elastography probe 1 performs an upward or downward operation to adjust the first pressure.

[0052] The transient elastography probe 2 is used to generate a shear wave based on a vibrator when the second pressure measured by the second injection pressure detection device 4 reaches the second target pressure value. The second pressure refers to the relative pressure between the transient elastography probe 2 and the tissue to be measured.

[0053] Specifically, the transient elastography probe 2 can use the second injection pressure detection device 4 to measure the second pressure between the transient elastography probe 21 and the skin surface corresponding to the tissue to be tested. The processing component 5 compares the measured second pressure with a second target pressure value. When the second pressure reaches the second target pressure value, the vibrator 21 is controlled to apply low-frequency vibration to the surface of the tissue to be tested to generate shear waves. When the second pressure does not reach the second target pressure value, the second pressure is adjusted under the control of the processing component 5 to bring the second pressure to the second target pressure value. Similarly, the transient elastography probe 2 performs lifting or pressing operations to adjust the second pressure.

[0054] Optionally, the first target pressure value and the second target pressure value can be specific pressure values ​​or pressure ranges. The first target pressure value and the second target pressure value can be the same or different, depending on the detection requirements.

[0055] Processing component 5 is used to determine a target detection probe from at least one shear wave elastography probe and / or at least one instantaneous elastography probe, and to adjust a first pressure and / or a second pressure based on the determined target detection probe, so that the first pressure reaches a first target pressure value and / or the second pressure reaches a second target pressure value.

[0056] Specifically, the processing component 5 can first determine the target detection probe based on the communication connection with the shear wave elastography probe 1 and / or the transient elastography probe 2, and then receive the pressure transmitted by the target detection probe. The target detection probe can be the shear wave elastography probe 1, the transient elastography probe 2, or both.

[0057] When the target detection probe is a shear wave elastography probe 1, the processor receives the first pressure transmitted by the shear wave elastography probe 1. Then, if the first pressure does not meet the first target pressure value, the processor controls the shear wave elastography probe 1 to adjust the first pressure so that the first pressure reaches the first target pressure value. If the first pressure meets the first target pressure value, no adjustment is required.

[0058] When the target detection probe is a transient elastography probe 2, the processor receives the second pressure transmitted by the transient elastography probe 2. Then, if the second pressure does not meet the second target pressure value, the processor adjusts the second pressure by controlling the transient elastography probe 2 to make the second pressure reach the second target pressure value. If the second pressure meets the second target pressure value, no adjustment is required.

[0059] In this configuration, when the target detection probes are shear wave elastography probe 1 and instantaneous elastography probe 2, the processor receives the first pressure transmitted by shear wave elastography probe 1 and the second pressure transmitted by instantaneous elastography probe 2. Then, if the first pressure and / or the second pressure do not meet the corresponding target pressure value, the processor adjusts the first pressure and / or the second pressure by controlling the corresponding probes to make the first pressure reach the first target pressure value and / or the second pressure reach the second target pressure value. If the first pressure and / or the second pressure meet the corresponding target pressure value, no adjustment is required.

[0060] The processing component 5 is also used to control the target detection probe to emit a second ultrasonic signal to the tissue to be tested and receive the ultrasonic echo signal after the target detection probe generates a shear wave; generate ultrasonic data based on the ultrasonic echo signal; process the ultrasonic data and determine the processing result corresponding to the tissue to be tested.

[0061] Optionally, processing component 5 can determine a preset processing method for the ultrasound data based on the data type. Then, the ultrasound data is processed according to the preset processing method to obtain the processing result corresponding to the tissue to be tested. The ultrasound data can be a B-mode ultrasound image, a color Doppler ultrasound image, an elastography image, etc., of the tissue to be tested.

[0062] The processing results corresponding to the tissue under test can also be called measurement results. These processing results can be ultrasound parameters representing scattering, attenuation, and scatterer distribution characteristics; they can also be parameters related to vascular morphology; or they can be parameters related to elasticity. Of course, the processing results can also include all of the above types of parameters simultaneously.

[0063] The elastography system provided in this invention allows for the selection of a suitable elastography probe to detect the tissue under test. Furthermore, detection only occurs when the selected probe applies pressure that meets the required level, ensuring the accuracy and stability of the determined processing results. In addition, this elastography system simultaneously provides at least one shear wave elastography probe and at least one instantaneous elastography probe, making it more convenient to use and further improving detection efficiency.

[0064] Optionally, processing component 5 also analyzes the processing results to determine the evaluation result of the organization under test. The evaluation can be displayed through scores, ratings, or other methods.

[0065] Specifically, analyzing parameters related to elasticity can determine the evaluation results of the tested tissue in terms of quantitative fibrosis; analyzing ultrasound parameters related to scattering, attenuation, and scatterer distribution characteristics can determine the evaluation results of the tested tissue in terms of tumor benignity or malignancy; and analyzing parameters related to vascular morphology can determine the evaluation results of the tested tissue in terms of metabolism.

[0066] In an optional embodiment of this application, the processing component 5 is used to acquire a tissue image of the tissue to be tested; identify the tissue image to determine the preset requirements of the ultrasound data; and determine the shear wave elastography probe 1 or / and the transient elastography probe 2 as the target detection probes according to the preset requirements of the ultrasound data.

[0067] Specifically, the processing component 5 can acquire tissue images of the tissue under test based on the shear wave elastography probe 1 or the instantaneous elastography probe 2; the processing component 5 can also receive tissue images of the tissue under test input by the user; the processing component 5 can also receive tissue images of the tissue under test sent by other devices. This application embodiment does not specifically limit the method by which the processing component 5 acquires tissue images of the tissue under test.

[0068] After acquiring the tissue image of the tissue to be tested, processing component 5 can use a tissue recognition model to identify the tissue image. Then, based on the recognition results, it determines the preset requirements for the ultrasound data of the tissue to be tested.

[0069] The tissue identification model can be a machine learning network model, or other network models, such as DNN (Deep Neural Networks), CNN (Convolutional Neural Networks), RNN (Recurrent Neural Networks), etc. When the tissue identification model is a CNN, it can be a V-Net model, a U-Net model, a Generative Adversarial Network (GAN) model, etc. This application does not specifically limit the type of tissue identification model.

[0070] After determining the preset requirements for the ultrasound data of the tissue to be tested, the processing component 5 can determine the shear wave elastography probe 1 or / and the transient elastography probe 2 as the target detection probe according to the preset requirements of the ultrasound data.

[0071] The elastography system provided in this embodiment of the invention includes a processing component 5, which acquires tissue images of the tissue to be tested, identifies the tissue images, and determines preset requirements for ultrasound data, ensuring the accuracy of the preset requirements for the ultrasound data of the tissue to be tested. Based on the preset requirements for the ultrasound data, shear wave elastography probe 1 and / or transient elastography probe 2 are selected as the target detection probes. This ensures the accuracy of selecting shear wave elastography probe 1 and / or transient elastography probe 2 as the target detection probes.

[0072] In an optional embodiment of this application, the preset requirement is that the ultrasound data characterizes the detection results of the tissue under test in the depth direction and the horizontal direction. The processing component 5 is further used to determine the shear wave elastography probe 1 as the target detection probe according to the preset requirement of the ultrasound data characterizing the detection results of the tissue under test in the horizontal direction; and to determine the instantaneous elastography probe 2 as the target detection probe according to the preset requirement of the ultrasound data characterizing the detection results of the tissue under test in the depth direction.

[0073] Specifically, when the preset requirement for the tissue to be tested is the detection result of ultrasound data characterizing the tissue to be tested in the depth direction and the horizontal direction, the processing component 5 can determine the shear wave elastography probe 1 as the target detection probe according to the preset requirement of ultrasound data characterizing the tissue to be tested in the horizontal direction, and determine the instantaneous elastography probe 2 as the target detection probe according to the preset requirement of ultrasound data characterizing the tissue to be tested in the depth direction.

[0074] The elastography system provided in this embodiment of the invention has a preset requirement of ultrasound data characterizing the detection results of the tissue under test in the depth and horizontal directions. The processing component 5 is further used to determine the shear wave elastography probe 1 as the target detection probe based on the preset requirement of ultrasound data characterizing the detection results of the tissue under test in the horizontal direction, ensuring the accuracy of determining the shear wave elastography probe 1 as the target detection probe. Based on the preset requirement of ultrasound data characterizing the detection results of the tissue under test in the depth direction, the instantaneous elastography probe 2 is determined as the target detection probe, ensuring the accuracy of determining the instantaneous elastography probe 2 as the target detection probe.

[0075] In an optional embodiment of this application, the first injection pressure detection device includes: a pressure receiving device, a pressure measuring device, an injection device, and a connecting device. The connecting device is connected to the pressure receiving device through a pressure tap, connected to the pressure measuring device through a pressure measuring port, and connected to the injection device through a filling port. The filling port has a sealing device.

[0076] A pressure receiving device for receiving a first pressure based on the liquid inside it and converting the first pressure into liquid pressure.

[0077] In one optional embodiment of this application, the pressure receiving device includes a first contact layer, a liquid-containing chamber, and a second contact layer, with the liquid-containing chamber disposed between the first and second contact layers. The first contact layer contacts the probe surface corresponding to the ultrasonic transducer in the shear wave elastography probe, and the second contact layer contacts the skin surface corresponding to the object being tested. The liquid-containing chamber is filled with liquid, and the pressure receiving device can receive the first pressure between the shear wave elastography probe 1 and the tissue being tested based on the liquid in the liquid-containing chamber, and convert the first pressure into liquid pressure.

[0078] The liquid injection device is used to inject liquid into the pressure receiving device.

[0079] Specifically, the injection device can inject liquid into the pressure receiving device.

[0080] In one alternative embodiment, a valve is installed below the injection device. When the liquid in the liquid receiving chamber of the pressure receiving device is not full, the valve below the injection device can be opened, and then the injection device can inject liquid into the pressure receiving device, thereby ensuring that the liquid receiving chamber in the pressure receiving device is full of liquid, and thus ensuring the accuracy of converting the first pressure into liquid pressure.

[0081] A pressure measuring device for detecting liquid pressure and calculating a first pressure value based on the liquid pressure value.

[0082] Specifically, the pressure measuring device can measure the liquid pressure converted from the liquid in the pressure receiving device under the action of the first pressure, ensuring the accuracy of the measured liquid pressure. Then, based on the measured liquid pressure value, the pressure value of the first pressure is calculated, ensuring the accuracy of the calculated pressure value corresponding to the first pressure.

[0083] In an optional embodiment of this application, the pressure measuring device includes: a pressure conversion device, a signal processing device, a sampling device, and a transmission device, wherein one end of the pressure conversion device is connected to the liquid container of the pressure receiving device through the pressure measuring port and the pressure sampling port of the connecting device, the other end of the pressure conversion device is connected to the signal processing device, the other end of the signal processing device is connected to the sampling device, and the signal processing device is connected to the transmission device.

[0084] The pressure conversion device is used to detect the liquid pressure obtained by the pressure receiving device from the first pressure conversion, and convert the liquid pressure into an initial electrical signal, and transmit the initial electrical signal to the signal processing device.

[0085] The signal processing device is used to process the initial electrical signal, generate the target electrical signal, and transmit the target electrical signal to the sampling device.

[0086] Specifically, signal processing includes amplification, filtering, etc., and the embodiments of this application do not specifically limit the signal processing method.

[0087] A sampling device is used to receive a target electrical signal, convert the target electrical signal into a target digital signal, and transmit the target digital signal to a transmission device.

[0088] The transmission device is used to receive the target digital signal output by the sampling device and transmit the target digital signal to the processing component 5, wherein the processing component 5 calculates the pressure value corresponding to the first pressure based on the target digital signal.

[0089] Specifically, the pressure conversion device can detect the liquid pressure obtained by the pressure receiving device from converting the first pressure, then convert the liquid pressure into an initial electrical signal, and transmit the initial electrical signal to the signal processing device, thereby ensuring the accuracy of the converted initial electrical signal. The signal processing device can process the initial electrical signal to generate a target electrical signal, and transmit the target electrical signal to the sampling device, ensuring the accuracy of the generated target electrical signal. The sampling device can receive the target electrical signal, convert it into a target digital signal, and then transmit the target digital signal to the transmission device, ensuring the accuracy of the converted target digital signal. The transmission device can receive the target digital signal output by the sampling device and transmit the target digital signal to the processing component 5. The processing component 5 calculates the pressure value of the liquid based on the received target digital signal, and then determines the pressure value corresponding to the first pressure based on the liquid pressure value, thereby ensuring the accuracy of the calculated pressure value corresponding to the first pressure.

[0090] In one optional embodiment of this application, such as Figure 2 As shown, the pressure conversion device includes a pressure input chamber 3211, a standard pressure chamber 3212, a pressure-sensitive resistor 3213, and a power supply 3214. One end of the pressure-sensitive resistor 3213 is connected to the pressure input chamber 3211, and the other end is connected to the standard pressure chamber 3212. The other end of the pressure input chamber 3211 is connected to the liquid container chamber via a pressure measuring port and a pressure tapping port of the connecting device. The positive terminal of the power supply 3214 is connected to the positive terminal of the pressure-sensitive resistor 3213, and the negative terminal of the power supply 3214 is connected to the negative terminal of the pressure-sensitive resistor 3213.

[0091] The pressure conversion device is used to receive liquid pressure based on pressure input chamber 3211, convert it into resistance value based on pressure-sensitive resistor 3213 and standard pressure chamber 3212, and determine the current magnitude in the pressure conversion device based on the resistance value, so as to convert the liquid pressure into an initial electrical signal.

[0092] Specifically, the pressure input chamber can input liquid pressure, and the pressure-sensitive resistor 3213 can change its resistance according to the magnitude of the liquid pressure, thereby causing the current in the circuit to change, thus realizing the conversion of liquid pressure into an initial electrical signal.

[0093] In one optional embodiment of this application, to protect the pressure conversion device, a matching resistor may be included in the pressure conversion device, wherein the matching resistor can be selected according to the magnitude of the current in the pressure conversion device. This application does not specifically limit the matching resistor in its embodiments.

[0094] The elastic imaging system provided in this embodiment of the invention includes a pressure conversion device comprising a pressure input chamber 3211, a standard pressure chamber 3212, a pressure-sensitive resistor 3213, and a power supply 3214. One end of the pressure-sensitive resistor 3213 is connected to the pressure input chamber 3211, and the other end is connected to the standard pressure chamber 3212. The other end of the pressure input chamber 3211 is connected to a liquid container via a pressure measuring port and a pressure tapping port of a connecting device. The positive terminal of the power supply 3214 is connected to the positive terminal of the pressure-sensitive resistor 3213, and the negative terminal of the power supply 3214 is connected to the negative terminal of the pressure-sensitive resistor 3213. The pressure conversion device receives liquid pressure from the pressure input chamber 3211 and converts it into a resistance value based on the pressure-sensitive resistor 3213 and the standard pressure chamber 3212, ensuring the accuracy of the converted resistance value. It also determines the current magnitude within the pressure conversion device based on the resistance value to convert the liquid pressure into an initial electrical signal, ensuring the accuracy of the converted initial electrical signal.

[0095] It should be noted that the structure of the second injection pressure detection device can be the same as that of the first injection pressure detection device, and will not be described in detail here.

[0096] In one optional embodiment of this application, the elastic imaging system further includes: a display component 6 connected to the processing component 5, wherein:

[0097] Processing component 5 is further configured to acquire a first pressure threshold corresponding to the tissue under test by shear wave elastography probe 1 and / or a second pressure threshold corresponding to the tissue under test by instantaneous elastography probe 2; and compare the first pressure with the first pressure threshold and / or compare the second pressure with the second pressure threshold; when the first pressure is greater than the first pressure threshold and / or the second pressure is greater than the second pressure threshold, calculate the difference between the first pressure and the first pressure threshold to obtain a first difference and / or the difference between the second pressure and the second pressure threshold to obtain a second difference; when the first pressure is greater than the first pressure threshold and / or the second pressure is greater than the second pressure threshold, control display component 6 to display information indicating a higher pressure, and display the first difference and / or the second difference; when the first pressure is less than the first pressure threshold and / or the second pressure is less than the second pressure threshold, control display component 6 to display information indicating a lower pressure, and display the first difference and / or the second difference.

[0098] Optionally, the first pressure threshold and the first pressure threshold can be input by the user; they can also be sent by other devices; or they can be queried from pre-stored data. This application embodiment does not specifically limit the method by which the processing component 5 obtains the first pressure threshold and / or the second pressure threshold.

[0099] After obtaining the first pressure threshold corresponding to the tissue under test by the shear wave elastography probe 1 and / or the second pressure threshold corresponding to the tissue under test by the instantaneous elastography probe 2, the processing component 5 can compare the first pressure with the first pressure threshold and / or compare the second pressure with the second pressure threshold, and calculate the difference between the first pressure and the first pressure threshold to obtain the first difference and / or the difference between the second pressure and the second pressure threshold to obtain the second difference.

[0100] When the first pressure is greater than the first pressure threshold and / or the second pressure is greater than the second pressure threshold, the control display component 6 displays information indicating a higher pressure and displays the first difference and / or the second difference.

[0101] When the first pressure is less than the first pressure threshold and / or the second pressure is less than the second pressure threshold, the control display component 6 displays information indicating that the pressure is low, and displays the first difference and / or the second difference.

[0102] Display component 6 is used, under the control of processing component 5, to display information about higher or lower pressure, and to display a first difference and / or a second difference.

[0103] The elastography system provided in this embodiment of the invention further includes: a display component 6 connected to a processing component 5; the processing component 5 is further configured to acquire a first pressure threshold corresponding to the shear wave elastography probe 1 for the tissue under test and / or a second pressure threshold corresponding to the instantaneous elastography probe 2 for the tissue under test; and to compare the first pressure with the first pressure threshold and / or compare the second pressure with the second pressure threshold, ensuring the accuracy of the comparison results. When the first pressure is greater than the first pressure threshold and / or the second pressure is greater than the second pressure threshold, the difference between the first pressure and the first pressure threshold is calculated to obtain a first difference and / or the difference between the second pressure and the second pressure threshold is calculated to obtain a second difference, ensuring the accuracy of the calculated first difference and / or second difference. When the first pressure is greater than the first pressure threshold and / or the second pressure is greater than the second pressure threshold, the control display component 6 displays information indicating a higher pressure, and displays the first difference and / or the second difference, ensuring that the display component 6 can display information indicating a higher pressure and the first difference and / or the second difference; when the first pressure is less than the first pressure threshold and / or the second pressure is less than the second pressure threshold, the control display component 6 displays information indicating a lower pressure, and displays the first difference and / or the second difference, ensuring that the display component 6 can display information indicating a lower pressure and the first difference and / or the second difference; the display component 6, under the control of the processing component 5, displays information indicating a higher or lower pressure, and displays the first difference and / or the second difference, thereby enabling the user to obtain information indicating a higher or lower pressure and the first difference and / or the second difference through the display component 6.

[0104] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An elastography system, characterized by, The elastic imaging system comprises at least one shear wave elastic imaging probe, at least one transient elastic imaging probe, at least one first liquid injection pressure detection device, at least one second liquid injection pressure detection device and a processing assembly, each of the shear wave elastic imaging probes and each of the transient elastic imaging probes is connected to the processing assembly based on different interfaces, each of the shear wave elastic imaging probes is connected to each of the first liquid injection pressure detection devices one by one, each of the transient elastic imaging probes is connected to each of the second liquid injection pressure detection devices one by one, and each of the transient elastic imaging probes comprises a vibrator, wherein: The shear wave elastic imaging probe is configured to emit a first ultrasonic signal to generate a shear wave when a first pressure measured by the first liquid injection pressure detection device reaches a first target pressure value, the first pressure being a relative pressure between the shear wave elastic imaging probe and a to-be-detected tissue; The transient elastic imaging probe is configured to generate a shear wave based on the vibrator when a second pressure measured by the second liquid injection pressure detection device reaches a second target pressure value, the second pressure being a relative pressure between the transient elastic imaging probe and the to-be-detected tissue; The processing assembly is configured to determine a target detection probe from at least one of the shear wave elastic imaging probes or / and at least one of the transient elastic imaging probes, and adjust the first pressure or / and the second pressure based on the determined target detection probe, so that the first pressure reaches the first target pressure value or / and the second pressure reaches the second target pressure value; The processing assembly is further configured to control the target detection probe to emit a second ultrasonic signal to the to-be-detected tissue and receive an ultrasonic echo signal after the target detection probe generates a shear wave, generate ultrasonic data according to the ultrasonic echo signal, process the ultrasonic data, and determine a processing result corresponding to the to-be-detected tissue; The processing assembly is configured to acquire a tissue image of the to-be-detected tissue, identify the tissue image, determine a preset requirement of the ultrasonic data, and determine the shear wave elastic imaging probe or / and the transient elastic imaging probe as the target detection probe according to the preset requirement of the ultrasonic data; The preset requirement is a detection result of the to-be-detected tissue in a depth direction and a horizontal direction represented by the ultrasonic data, and the processing assembly is further configured to determine the shear wave elastic imaging probe as the target detection probe according to the preset requirement of the detection result of the to-be-detected tissue in the horizontal direction represented by the ultrasonic data, and determine the transient elastic imaging probe as the target detection probe according to the preset requirement of the detection result of the to-be-detected tissue in the depth direction represented by the ultrasonic data.

2. The elastography system of claim 1, wherein, The first liquid injection pressure detection device comprises a pressure receiving device, a pressure measuring device, a liquid injection device and a connecting device, the connecting device is connected with the pressure receiving device through a pressure taking port, the connecting device is connected with the pressure measuring device through a pressure measuring port, the connecting device is connected with the liquid injection device through a filling port, and the filling port is provided with a sealing device, wherein: The pressure receiving device is used for receiving the first pressure according to the liquid in the pressure receiving device and converting the first pressure into a liquid pressure; The liquid injection device is used for injecting liquid into the pressure receiving device; The pressure measuring device is used for detecting the liquid pressure and calculating the pressure value of the first pressure based on the pressure value of the liquid pressure.

3. The elastography system of claim 2, wherein, The pressure measuring device comprises a pressure conversion device, a signal processing device, a sampling device and a transmission device, one end of the pressure conversion device is connected with a liquid containing bin of the pressure receiving device through the pressure measuring port and the pressure taking port, the other end of the pressure conversion device is connected with the signal processing device, the other end of the signal processing device is connected with the sampling device, and the signal processing device is connected with the transmission device, wherein: The pressure conversion device is used for detecting the liquid pressure converted by the pressure receiving device from the first pressure, converting the liquid pressure into an initial electric signal, and transmitting the initial electric signal to the signal processing device; The signal processing device is used for processing the initial electric signal, generating a target electric signal, and transmitting the target electric signal to the sampling device; The sampling device is used for receiving the target electric signal, converting the target electric signal into a target digital signal, and transmitting the target digital signal to the transmission device; The transmission device is used for receiving the target digital signal output by the sampling device and transmitting the target digital signal to the processing assembly, wherein the processing assembly calculates the pressure value corresponding to the first pressure according to the target digital signal.

4. The elastography system of claim 3, wherein, The pressure conversion device comprises a pressure input bin, a standard pressure bin, a pressure sensitive resistor and a power supply, one end of the pressure sensitive resistor is connected with the pressure input bin, the other end of the pressure sensitive resistor is connected with the standard pressure bin, the other end of the pressure input bin is connected with the liquid containing bin through the pressure measuring port and the pressure taking port of the connecting device, the positive electrode of the power supply is connected with the positive electrode of the pressure sensitive resistor, and the negative electrode of the power supply is connected with the negative electrode of the pressure sensitive resistor; wherein: The pressure conversion device is used for receiving the liquid pressure based on the pressure input bin, converting the liquid pressure into a resistance value based on the pressure sensitive resistor and the standard pressure bin, and determining the current size in the pressure conversion device based on the resistance value to convert the liquid pressure into an initial electric signal.

5. The elastography system of claim 1, wherein, The elastography system further comprises a display assembly connected with the processing assembly. The processing component is further configured to acquire a first pressure threshold corresponding to the tissue to be measured for the shear wave elastography probe or / and a second pressure threshold corresponding to the tissue to be measured for the transient elastography probe; compare the first pressure with the first pressure threshold or / and compare the second pressure with the second pressure threshold; when the first pressure is greater than the first pressure threshold or / and the second pressure is greater than the second pressure threshold, calculate a difference between the first pressure and the first pressure threshold to obtain a first difference value or / and a difference between the second pressure and the second pressure threshold to obtain a second difference value; when the first pressure is greater than the first pressure threshold or / and the second pressure is greater than the second pressure threshold, control the display component to display a larger pressure information and display the first difference value or / and the second difference value; when the first pressure is less than the first pressure threshold or / and the second pressure is less than the second pressure threshold, control the display component to display a smaller pressure information and display the first difference value or / and the second difference value.

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