Ultrasound imaging apparatus and method for adjusting sampling line angle
By setting up virtual sampling gates and virtual sampling lines on the user interface of ultrasound imaging equipment, the adjustment of sampling line angle is simplified, solving the problems of high cost and damage risk in existing technologies, improving ease of operation and reducing hardware costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-03-13
AI Technical Summary
Existing ultrasound imaging equipment requires complex equipment to adjust the sampling line angle, which is costly and carries the risk of damage.
The user interface features a sampling gate adjustment area, including a virtual sampling gate and a virtual sampling line. The angle of the sampling line can be adjusted by rotating the virtual sampling line, simplifying the operation process.
The sampling line angle can be easily adjusted without the need for complex equipment, reducing hardware costs and improving the user experience.
Smart Images
Figure CN121647725A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of ultrasound imaging, and in particular to an ultrasound imaging device and a method for adjusting the angle of the sampling line. Background Technology
[0002] Ultrasound imaging equipment is a medical diagnostic instrument that uses high-frequency sound waves to generate real-time images of internal tissues and organs of the human body. The device emits ultrasound waves into the body, and when these sound waves encounter the interfaces of different tissues, they produce echoes. The device then receives these echoes and processes them through a computer, converting information such as the intensity and frequency of the echoes into visual grayscale or color images, which are then displayed on a screen.
[0003] In pulsed Doppler (PW) mode, the primary purpose of ultrasound imaging equipment is to measure blood flow velocity at specific locations within blood vessels. Adjusting the angle of the sampling line is a crucial step and is essential for the measurement. However, existing methods for adjusting the sampling line angle require complex equipment, which is not only costly but also carries the risk of damage. Summary of the Invention
[0004] The purpose of this application is to provide an ultrasound imaging device and a method for adjusting the angle of the sampling line, which can replace the complex device for adjusting the sampling line.
[0005] According to a first aspect of the embodiments of this application, an ultrasound imaging device is provided, the ultrasound imaging device including a display device, the user interface including:
[0006] Ultrasound images, used to display the internal tissue structure of the scanned area;
[0007] A sampling gate is provided within the ultrasound image, and an adjustable sampling line is provided at the sampling gate. The sampling gate is used to mark the location of blood flow signals in the internal tissue structure within the sampling gate.
[0008] A sampling gate adjustment area is provided on the user interface, with the sampling gate and the sampling gate being spaced apart. The sampling gate adjustment area includes a virtual sampling gate and a virtual sampling line provided on the virtual sampling gate.
[0009] When the virtual sampling line is rotated, the angle of the sampling line follows the rotation of the virtual sampling line.
[0010] In an optional embodiment, the sampling gate adjustment area has a first state and a second state. Clicking the button allows the sampling gate adjustment area to switch from the first state to the second state, and retracting the click allows the sampling gate adjustment area to switch from the second state to the first state.
[0011] When the sampling gate adjustment area changes from the first state to the second state, a ring pattern is provided on the outside of the virtual sampling gate and the virtual sampling line;
[0012] When the sampling gate adjustment area changes from the second state to the first state, the annular pattern on the outside of the virtual sampling gate disappears.
[0013] In an optional embodiment, when the sampling gate adjustment area changes from the first state to the second state, the virtual sampling gate, the virtual sampling line, and the annular pattern are all displayed as dashed lines.
[0014] In an optional embodiment, when the sampling gate adjustment area changes from the first state to the second state, an angle display area appears in the sampling gate adjustment area;
[0015] When the sampling gate adjustment area changes from the second state to the first state, the angle display area disappears;
[0016] The angle display area is used to display the angle of rotation of the virtual sampling line.
[0017] In one optional embodiment, the angle display area includes a first display style and a second display style. When the virtual sampling line rotates to a first range, the angle display area displays the first display style, and when the virtual sampling line rotates to a second range, the angle display area displays the second display style.
[0018] In one optional embodiment, the virtual sampling line includes a plurality of predetermined angles arranged from the center outwards.
[0019] The virtual sampling line rotates sequentially to predetermined angles, and the sampling information corresponding to each predetermined angle is recorded;
[0020] Compare each sampled information to determine the required angle range;
[0021] The required angle range is the range between the predetermined angle corresponding to the maximum value in the sampled information and its two adjacent predetermined angles.
[0022] In one alternative embodiment, the required angle range is displayed in a first style, the remaining angle range is displayed in a second style, and the virtual sampling line is restricted to rotating within the required angle range.
[0023] In an alternative embodiment, after comparing each sampled information and determining the required angle range,
[0024] Divide the demand angle range into multiple sub-intervals and set multiple next predetermined angles;
[0025] The virtual sampling line rotates sequentially to the next predetermined angle and records the sampling information corresponding to the next predetermined angle.
[0026] Compare each sampled information to determine the next required angle range, which is the range between the predetermined angle corresponding to the maximum value in the sampled information and its two adjacent predetermined angles;
[0027] Repeat the above steps until the maximum value in the sampled information is determined.
[0028] In an optional embodiment, the user interface further includes an image adjustment area disposed on one side of the ultrasound image, the image adjustment area being disposed on the side of the ultrasound image, and the sampling gate adjustment area being disposed in the image adjustment area.
[0029] In an optional embodiment, the user interface further includes a sampling line, the sampling gate is disposed on the sampling line, and the user interface is provided with a first adjustment mode and a second adjustment mode for adjusting the sampling line and the sampling gate. The first adjustment mode is used to adjust the size of the sampling gate, and the second adjustment mode is used to move the sampling line in parallel.
[0030] In an optional embodiment, a third adjustment method is further included for adjusting the sampling line, the third adjustment method being used to adjust the tilt angle of the sampling line.
[0031] In one optional embodiment, the first adjustment method is to change the size of the sampling gate by moving two fingers away from or towards it, with the touch area of the two fingers located at the sampling gate.
[0032] In one optional embodiment, the second adjustment method is to move the sampling door in parallel by controlling a preset range of the sampling door with a single touch.
[0033] In one optional embodiment, the third adjustment method is to change the tilt angle of the sampling line by moving the sampling gate outside a preset range.
[0034] In an optional embodiment, the user interface further includes a preset adjustment button, which, when clicked, rotates the sampling line to a preset angle.
[0035] In an optional embodiment, the preset angle includes at least a first preset angle and a second preset angle, the difference between the first preset angle and the second preset angle is 45°, and the sampling line can be switched between the first preset angle and the second preset angle by clicking the preset adjustment button;
[0036] And / or,
[0037] The user interface includes parallel lines, the angle between the first preset angle and the parallel lines is set to 45°, and the angle between the second preset angle and the parallel lines is set to 90°.
[0038] According to a second aspect of the embodiments of this application, a method for adjusting the angle of a sampling line is provided, comprising:
[0039] It sends ultrasound signals to the area being scanned to generate ultrasound images;
[0040] Enter PW mode, and place the sampling line, sampling gate, and sampling area in the ultrasound image region;
[0041] A sampling gate adjustment area is generated, and the sampling gate and the sampling gate are spaced apart. The sampling gate adjustment area includes a virtual sampling gate, and the angle of the sampling line can be changed by rotating the virtual sampling line through touch.
[0042] In an optional embodiment, the sampling gate includes a first state and a second state, after the sampling gate adjustment area is generated,
[0043] In response to receiving a signal that the virtual sampling gate has been clicked, the sampling gate transitions from the first state to the second state;
[0044] Wherein, the second state has a ring-shaped pattern on its outer side relative to the first state; and / or,
[0045] The second state, relative to the first state, includes an angle display area; and / or,
[0046] In the second state, compared to the first state, the virtual sampling lines of the virtual sampling gate are all displayed as dashed lines.
[0047] The beneficial technical effects of the technical solutions provided in this application are:
[0048] A sampling gate adjustment area is provided on the user interface, with the sampling gate and the adjustment area spaced apart. The adjustment area includes a virtual sampling gate and a virtual sampling line located on the virtual sampling gate. When the virtual sampling line is rotated, its angle follows the rotation of the virtual sampling line.
[0049] Based on the above settings, users can adjust the actual position of the sampling line by adjusting the virtual sampling gate and the virtual sampling line located within it. This design allows users to easily adjust the position of the sampling line, thus obtaining a better user experience. Furthermore, this design eliminates the need for devices such as sampling balls, thereby saving on the cost of related hardware structures. Attached Figure Description
[0050] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0051] Figure 1 This is a schematic diagram of a user interface according to an embodiment of this application.
[0052] Figure 2 This is a schematic diagram illustrating the first and second states of the sampling gate adjustment area according to an embodiment of this application.
[0053] Figure 3 This is a schematic diagram illustrating two styles of the angle display area according to an embodiment of this application.
[0054] Figure 4 This is a schematic diagram illustrating a plurality of predetermined angles according to an embodiment of this application.
[0055] Figure 5 This is a schematic diagram illustrating the required angle and the remaining angle according to an embodiment of this application.
[0056] Figure 6 This is a schematic diagram of an image adjustment area according to an embodiment of this application.
[0057] Figure 7 This is a schematic diagram illustrating the adjustment of the sampling gate and sampling line according to an embodiment of this application.
[0058] Figure 8 This is a schematic flowchart illustrating a method for adjusting the angle of a sampling line according to an embodiment of this application. Detailed Implementation
[0059] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0060] To keep the drawings concise, only the parts relevant to the invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of components with the same structure or function is shown schematically, or only one is labeled. In this document, "one" can mean not only "only one" but also "more than one".
[0061] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0062] In this document, 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 fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0063] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0064] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.
[0065] In pulsed Doppler (PW) mode, the primary purpose of ultrasound imaging equipment is to measure blood flow velocity at specific locations within blood vessels. The specific operating procedure of ultrasound imaging equipment in this mode is as follows:
[0066] Step 1: Enter Mode and Activate Sampling Lines. First, the operator will scan the neck (or other areas) in 2D (grayscale) mode to locate a two-dimensional cross-sectional image of the carotid artery to be examined. Then, the operator will press the [PW] button on the control panel to activate the pulsed Doppler mode.
[0067] Step 2: Placement of the sampling line (positioning). The operator uses a trackball or other control device to move the blue vertical sampling line left and right, ensuring it precisely covers the center of the lumen of the target blood vessel. The purpose is to ensure that the blood flow measured is at the central axis of the blood vessel, where the flow velocity is fastest and most representative.
[0068] Step 3: Set the sampling gate 20 (fixed depth). The area between the two short horizontal lines on the vertical line defines a "sampling volume" or "sampling gate 20". It acts like a small "ear" or "gate", only listening for blood flow signals within this tiny area. Move the entire sampling gate 20 up and down to place it at a specific depth within the blood vessel lumen. Adjust the size of the sampling gate 20 according to the vessel diameter, usually setting it to just cover the vessel's inner diameter to avoid receiving blood flow signals from adjacent vessels or veins.
[0069] Step 4: Angle Correction (Angle Fixing). Align the angle correction reference line (sampling line) appearing on the screen with the direction of the blood vessel wall. This step is crucial because an excessively large angle (usually required to be less than 60 degrees) will result in a significantly lower flow velocity measurement.
[0070] Step 5: Acquiring and Interpreting the Spectrum. Once the sampling line and sampling gate 20 are in place, the device will begin collecting blood flow signals at that point. The operator may have the patient briefly hold their breath to obtain a clear image, then press the Freeze button. The device will display a blood flow velocity-time spectrum. The waveforms in the graph correspond to the systolic and diastolic phases of the heart. The device will automatically measure and display key parameters, etc. These values are crucial for diagnosing whether blood vessels are narrowed.
[0071] This application discloses an ultrasound imaging device, which includes an ultrasound probe, a main unit, and a display device. The ultrasound probe, the main unit, and the display device are interconnected. The display device has a user interface. (Refer to...) Figure 1 As shown in (a) and (b), the user interface in the figure includes: ultrasound image 10, sampling gate 20, and sampling gate 20 adjustment area.
[0072] The ultrasound image 10 is used to display the internal tissue structure of the scanned area. A sampling gate 20 is located within the ultrasound image 10, and an adjustable sampling line is provided at the sampling gate 20. The sampling gate 20 is used to mark the location of blood vessels on the internal tissue structure. An adjustment area for the sampling gate 20 and the sampling gate 20 are spaced apart on the user interface. The adjustment area for the sampling gate 20 includes a virtual sampling gate 20 and a virtual sampling line located on the virtual sampling gate 20. When the virtual sampling line is rotated, the angle of the sampling line follows the rotation of the virtual sampling line.
[0073] It should be noted that the aforementioned internal tissue structures may include breast tissue, heart and cardiovascular system, liver tissue, carotid artery and blood vessel tissue, thyroid tissue, etc. This application does not list them all; anything that can be detected by ultrasound and imaged is within the scope of protection of this application. The interconnection between the ultrasound probe, the host, and the display device includes wireless connections such as signal connections, as well as direct data transmission line connections, direct integrated setups, etc., and this application does not impose any connection limitations. It should also be noted that the sampling gate 20 is used to calibrate the location of blood flow signals within the internal tissue structures of the sampling gate 20; this can be understood as requiring analysis of blood flow signals within the area where the sampling gate 20 is located.
[0074] Based on the design of the sampling gate 20 adjustment area, users can adjust the actual position of the sampling line by adjusting the virtual sampling gate 20 and the virtual sampling line located within it. This design greatly facilitates users in adjusting the position of the sampling line, thereby obtaining a better user experience. Furthermore, the design of this application eliminates the need for operation via a sampling ball, thus saving on the hardware structure and supporting software adaptation functions associated with the sampling ball.
[0075] The above operation process can be as follows: the user presses the adjustment area of the sampling gate 20 with their finger and rotates the virtual sampling line along the center of the adjustment area of the sampling gate 20. After rotating to the desired position, the user retracts their finger, and the angle of rotation of the virtual sampling line is determined at this time.
[0076] In one embodiment, reference Figure 2 As shown, the sampling gate 20 adjustment area has a first state A1 and a second state A2, wherein... Figure 2 (a) is the view shown in the first state A1. Figure 2(b) is a view showing the second state A2. After receiving a conversion signal, the sampling gate 20 adjustment area jumps from the first state A1 to the second state A2. After receiving another conversion signal, the sampling gate 20 adjustment area jumps from the second state A2 back to the first state A1. When the sampling gate 20 adjustment area moves from the first state A1 to the second state A2, a ring pattern is provided on the outer side of the virtual sampling gate 20 and the virtual sampling line. When the sampling gate 20 adjustment area moves from the second state A2 back to the first state A1, the ring pattern on the outer side of the virtual sampling gate 20 disappears. The aforementioned receiving of the conversion signal can be achieved by clicking, which allows the sampling gate 20 adjustment area to jump from the first state A1 to the second state A2, and by retracting the click, which allows the sampling gate 20 adjustment area to jump from the second state A2 back to the first state A1. Alternatively, it can be achieved by clicking once, which allows the sampling gate 20 adjustment area to jump from the first state A1 to the second state A2, and by clicking a second time, which allows the sampling gate 20 adjustment area to jump from the second state A2 back to the first state A1. Alternatively, a long press can switch the sampling gate 20 adjustment area from the first state A1 to the second state A2, and releasing the long press can switch the sampling gate 20 adjustment area from the second state A2 back to the first state A1. In other words, as long as the switching of the sampling gate 20 adjustment area between the first state A1 and the second state A2 is achieved through a conversion signal, it falls within the scope of protection of this application.
[0077] Based on the above settings, the annular pattern on the outer side of the virtual sampling gate 20 in the sampling gate 20 adjustment area can only be displayed during operation, that is, the outer contour will only appear after the user touches the sampling gate 20 adjustment area, which can help the user determine whether the angle of the sampling line is being adjusted, giving the user a very intuitive operating experience.
[0078] In one embodiment, reference continues Figure 2 As shown, when the sampling gate 20 adjustment area changes from the first state A1 to the second state A2, the virtual sampling gate 20, the virtual sampling line, and the annular pattern are all displayed as dashed lines. Figure 2 It can be seen from this that Figure 2 The virtual sampling gate 20, the virtual sampling line, and the annular pattern in (b) are all shown as dashed lines.
[0079] Similarly, in this embodiment, by displaying the virtual sampling gate 20, the virtual sampling line, and the annular pattern as dashed lines, the user will clearly know that they have successfully clicked the adjustment area of the sampling gate 20 after clicking, thus making the operation more convenient and giving the user a very intuitive control experience.
[0080] In one embodiment, reference continues Figure 2 As shown, when the sampling gate 20 adjustment area rotates from the first state A1 to the second state A2, an angle display area appears within the sampling gate 20 adjustment area. When the sampling gate 20 adjustment area rotates from the second state A2 back to the first state A1, the angle display area disappears. The angle display area is used to display the angle of rotation of the virtual sampling line. Figure 2 In (b), the number 13 is the number displayed in the angle display area.
[0081] This angle display area not only shows the rotation angle of the virtual sampling line, but also allows the user to intuitively perceive the range of their rotation angle. This facilitates precise angle adjustment control. For example, if a user only wants to rotate one degree, it's difficult to succeed intuitively. However, with the angle display area, the user can clearly know their current angle and make adjustments left or right accordingly.
[0082] In one embodiment, reference Figure 3 As shown, the angle display area includes a first display style and a second display style. When the virtual sampling line rotates to a first range, the angle display area displays the first display style; when the virtual sampling line rotates to a second range, the angle display area displays the second display style. Figure 3 middle, Figure 3 (a) is the first display style. Figure 3 (b) is the second display style.
[0083] For example, the first range is defined as an angle greater than 60 degrees between the measurement point and the blood vessel, which leads to significantly lower flow velocity measurements. The second range is defined as an angle less than 60 degrees between the measurement point and the blood vessel, where the measurement data will be relatively accurate. Furthermore, for the above settings, the first display style can be set to display the font in red, and the second display style can be set to display the font in white.
[0084] Under the above settings, when the virtual sampling line rotates to the first range, the angle display area is displayed in red; when the virtual sampling line rotates to the second range, the angle display area is displayed in white. Users can easily distinguish between these two ranges when rotating the virtual sampling line, thus allowing them to rotate it to the desired range for measurement.
[0085] In one embodiment, the virtual sampling line includes a plurality of predetermined angles arranged from the center outwards.
[0086] The virtual sampling line rotates sequentially to predetermined angles, and the sampling information corresponding to each predetermined angle is recorded;
[0087] Compare each sampled information to determine the required angle range;
[0088] The required angle range is the range between the predetermined angle corresponding to the maximum value in the sampled information and its two adjacent predetermined angles.
[0089] For example, refer to Figure 4 As shown, the multiple predetermined angles arranged outwards from the center can be 45°, 90°, 135°, 180°, 225°, 270°, 315°, and 360°. In this embodiment, the system rotates sequentially from 45° to 360°, obtaining the sampling information value corresponding to each angle. Then, the sampling information values corresponding to each angle are compared, and the largest value is selected. For example, in one possible case, the sampling information value corresponding to 135° is the largest, so the adjacent 90° to 180° are the predetermined angles. Of course, the above is only one embodiment, and the predetermined angles can be varied according to actual needs.
[0090] The value closest to the actual blood flow velocity is within this range. The above filtering can quickly help users determine the range and save users' time.
[0091] In this embodiment, reference Figure 5 As shown, the required angle range is displayed in the first style, and the remaining angle range is displayed in the second style. The virtual sampling line is restricted to rotating within the required angle range. Figure 5 In the diagram, the required angle range is defined by two arrowed lines, and the remaining area is the remaining angle range.
[0092] In other embodiments, the pie chart corresponding to the angular range can be displayed in green, allowing the user to intuitively see the area's extent. Simultaneously, this embodiment restricts the virtual sampling line to rotate only within the desired angular range, quickly assisting the user in positioning.
[0093] In one embodiment, after comparing each sampled information to determine the required angle range,
[0094] Divide the demand angle range into multiple sub-intervals and set multiple next predetermined angles;
[0095] The virtual sampling line rotates sequentially to the next predetermined angle and records the sampling information corresponding to the next predetermined angle.
[0096] Compare each sampled information to determine the next required angle range, which is the range between the predetermined angle corresponding to the maximum value in the sampled information and its two adjacent predetermined angles;
[0097] Repeat the above steps until the maximum value in the sampled information is determined.
[0098] By setting and following the above steps, the maximum value corresponding to the sampling line can be found automatically, thereby saving users' debugging time to the greatest extent and directly obtaining the closest blood flow data.
[0099] For example, if the predetermined angle range is 90° to 180°, then the next predetermined angle range is determined to be 120° to 150°, then 130° to 140°, and finally 135° is determined to be the closest blood flow data in this case.
[0100] In one embodiment, reference Figure 6 As shown, the user interface also includes an image adjustment area 40 located on one side of the ultrasound image 10. The image adjustment area 40 is located on the side of the ultrasound image 10, and the sampling gate 20 adjustment area is located within the image adjustment area 40. The aforementioned side may be located on either side of the image adjustment area 40, or above or below it; this application does not impose any limitation. Figure 6 As shown, the area within the red box is the image adjustment area 40. Figure 6 (a) The middle sampling gate 20 adjustment area is in the first position. Figure 6 (b) When the sampling gate 20 adjustment area is in the second position, the user moves the sampling gate 20 adjustment area from... Figure 6 (a) The first position is transferred to Figure 6 (b) is the second position.
[0101] When the image adjustment area 40 is positioned to the side of the ultrasound image 10, it does not obstruct the display of the ultrasound image 10, thus making the display more complete and clear. Furthermore, because the image adjustment area 40 is positioned to the side of the ultrasound image 10, the user can operate the image adjustment area 40 with their holding hand while holding the device. For example, when operating a mobile phone, with the thumb positioned directly in front of the display area, the user can use their other fingers and palm to support the phone while rotating the sampling gate 20 adjustment area with their thumb. This allows for better operation of the device, especially when operating alone, where the user often needs to hold the probe area with one hand, allowing the other hand to adjust the sampling line while holding the device.
[0102] It should be noted that, in conjunction with the above operation process, the sampling gate 20 adjustment area is set to be able to be adjusted to a corresponding position within the image adjustment area 40, so that the user can set a specific position according to the condition of their fingers, in order to better use the above device.
[0103] The following will explain the adjustment methods of the sampling gate 20 and the sampling line in this application.
[0104] In one embodiment, reference Figure 7 As shown, the user interface also includes a sampling line, and the sampling gate 20 is disposed on the sampling line. The user interface has a first adjustment method and a second adjustment method for adjusting the sampling line and the sampling gate 20. The first adjustment method is used to adjust the size of the sampling gate 20, and the second adjustment method is used to move the sampling line in parallel. Figure 7 (a) is a schematic diagram before adjustment. Figure 7 (b) A schematic diagram of an enlarged sampling gate 20. Figure 7 (c) is a schematic diagram of the reduced sampling gate 20. Figure 7 (d) is a schematic diagram of the moving sampling line.
[0105] The first adjustment method described above is used to adjust the size of the sampling gate 20, which determines the specific location and range of the sampling, specifically the depth and width. The second adjustment method is used to move the sampling line in parallel, which determines the sampling direction and path.
[0106] The two adjustment methods described above can be used in combination to place the sampling gate 20 at any position on the ultrasound image 10, thereby obtaining the blood flow velocity in the area where the sampling gate 20 is located, which facilitates further analysis.
[0107] In other embodiments, a third adjustment method is also included for adjusting the sampling line, the third adjustment method being used to adjust the tilt angle of the sampling line.
[0108] Adjusting the tilt angle of the sampling line, in conjunction with the first and second adjustment methods described above, allows for better control of the sampling gate 20, ensuring it is positioned correctly. Furthermore, the third adjustment method can adjust the angle of the sampling line, thus determining the measurement direction and dissection path.
[0109] By combining the above three adjustment methods, users can obtain the best blood flow curve under various adjustments, thereby obtaining the best analytical data.
[0110] Specifically, the three adjustment methods are as follows: The first adjustment method involves moving two fingers away from or towards the sampling gate 20 to change its size, with the touch area of the two fingers located at the sampling gate 20. The second adjustment method involves single-point touch of a preset range of the sampling gate 20 to move the sampling gate 20 parallel to its surroundings. The third adjustment method involves single-point touch of the outer edge of the preset range of the sampling gate 20 to change the tilt angle of the sampling line.
[0111] The first adjustment method involves bringing two fingers close together to shrink the sampling gate 20 and moving them away to enlarge it. This intuitive operation allows the user to learn the method unconsciously. The second adjustment method involves clicking and dragging with a single finger to move the sampling gate 20. This dragging method allows the user to position the sampling gate 20 anywhere, enabling precise positioning within the ultrasound image 10. This intuitive operation also allows for unconscious learning. The third adjustment method involves touching and dragging the outer edge of a preset area of the sampling gate 20 to change the angle of the sampling line. Dragging to rotate the angle provides a strong contrast to direct dragging.
[0112] It should be noted that the second adjustment method mentioned above will also cause the sampling line to shift while moving the sampling gate 20, and with the cooperation of the third adjustment method, the sampling line can appear at any position in the ultrasound image 10 at any angle.
[0113] The above three adjustment methods operate independently yet in combination, allowing for precise adjustment of the size of the sampling gate 20, the direction of the sampling line, and the position of the sampling gate 20, thereby achieving the best blood flow velocity.
[0114] The above adjustment methods require manual adjustment. Although comprehensive changes can be made, the process is relatively cumbersome, especially the adjustment of the sampling line, which can be adjusted within a 360° range. Therefore, the required rotation angle is often very large, making it quite complicated.
[0115] In one embodiment, the user interface further includes a preset adjustment button, which, when clicked, rotates the sampling line to a preset angle.
[0116] In this embodiment, the preset angle is not limited and can be 30°, 60°, 90°, 120°, 150°, 180°, 210°, 240°, 270°, 300°, 330°, 360°, etc. Furthermore, this embodiment does not limit the number of preset angles; the preset angles can be 1, 2, 3, 4, 5, 6, etc. This application makes no restrictions, as long as the sampling line is rotated to the preset angle by clicking, it is within the scope of protection of this application.
[0117] Based on the above settings, users can set a preset angle. When more rotation is needed, the user can quickly rotate the position by clicking the preset adjustment button, allowing for fine-tuning of the angle based on the preset angle.
[0118] In one embodiment, the preset angle includes at least a first preset angle and a second preset angle, and the difference between the first preset angle and the second preset angle is 45°. The sampling line can be switched between the first preset angle and the second preset angle by clicking the preset adjustment button.
[0119] It should be noted that the above is only an embodiment including two preset angles. Of course, in this embodiment, a third preset angle, a fourth preset angle, a fifth preset angle, etc. may also be included.
[0120] With the above settings, the sampling line can be rotated 45° with each click. Before adjusting the sampling line through the sampling gate 20 adjustment area, users can click the preset adjustment button to rotate it to the corresponding position. Furthermore, when adjusting the sampling line, users may not be clear about the exact location; they can click to first determine the blood flow rate for a rough assessment. After this rough assessment, further adjustments can be made based on the results. In other words, before selecting the angle of the sampling line, users can click to obtain data from several points within a 360° range, and then rotate within the desired range to obtain more accurate blood flow information.
[0121] Based on the above settings, the user interface includes parallel lines, the angle between the first preset angle and the parallel lines is set to 45°, and the angle between the second preset angle and the parallel lines is set to 90°.
[0122] The aforementioned parallel line is a line parallel to one side of the user interface. In this embodiment, rotation can begin at an angle of 45° to the parallel line. Rotation is performed by clicking once to rotate 45°.
[0123] This application also proposes a method for adjusting the sampling line angle, referencing... Figure 8 As shown, it includes:
[0124] S210: Send an ultrasound signal to the scanned area to generate an ultrasound image 10;
[0125] S220: Enter PW mode, and place the sampling line, sampling gate 20 in the ultrasound image 10 area;
[0126] S230: Generate a sampling gate 20 adjustment area. The sampling gate 20 adjustment area and the sampling gate 20 are spaced apart. The sampling gate 20 adjustment area includes a virtual sampling gate 20. The angle of the sampling line is changed by rotating the virtual sampling line.
[0127] Based on the design of the sampling gate 20 adjustment area, users can adjust the actual position of the sampling line by adjusting the virtual sampling gate 20 and the virtual sampling line located within it. This design greatly facilitates users in adjusting the position of the sampling line, thereby obtaining a better user experience. Furthermore, the design of this application eliminates the need for operation via a sampling ball, thus saving on the hardware structure and supporting software adaptation functions associated with the sampling ball.
[0128] In one embodiment, the sampling gate 20 includes a first state A1 and a second state A2. After the sampling gate 20 adjustment area is generated,
[0129] In response to receiving a signal that the virtual sampling gate 20 is clicked, the sampling gate 20 transitions from the first state A1 to the second state A2;
[0130] The second state A2, relative to the first state A1, has a ring-shaped pattern on its outer side; and / or,
[0131] The second state A2, relative to the first state A1, includes an angle display area; and / or,
[0132] In the second state A2, compared to the first state A1, the virtual sampling lines of the virtual sampling gate 20 are all displayed as dashed lines.
[0133] Based on the above settings, the annular pattern on the outer side of the virtual sampling gate 20 in the sampling gate 20 adjustment area can only be displayed during operation. That is, the outer contour only appears after the user touches the sampling gate 20 adjustment area, which helps the user determine whether the angle of the sampling line is being adjusted, providing a very intuitive operating experience. Furthermore, the angle display area can indicate the rotation angle of the virtual sampling line and also allow the user to intuitively feel the range of their rotation angle. This facilitates precise angle adjustment control. For example, if a user only wants to rotate one degree, it is difficult to succeed by intuition alone, but with the help of the angle display area, the user can clearly know their current angle and make left or right adjustments accordingly. In addition, by displaying the virtual sampling gate 20, the virtual sampling line, and the annular pattern as dotted lines, the user will clearly know that they have successfully clicked on the sampling gate 20 adjustment area after clicking, making operation more convenient and providing a very intuitive operating experience.
[0134] This application discloses an ultrasound imaging device, which includes an ultrasound probe and a processor.
[0135] The ultrasound probe has a scanning state and an unscanned state. When the ultrasound probe is in the scanning state, it emits ultrasound waves to the subject and receives the reflected ultrasound waves. The processor is signal-connected to the ultrasound probe and is used to determine whether the ultrasound probe is in the scanning state. If the ultrasound probe is determined to be in the unscanned state, the transmission and reception of the ultrasound probe are disconnected.
[0136] Based on the above settings, the processor can determine whether the ultrasonic probe is in scanning mode when in use. When the processor determines that it is in non-scanning mode, it disconnects the transmission and reception control of the ultrasonic probe. That is, the ultrasonic probe will not work when in non-scanning mode. In this way, energy can be saved, the ultrasonic probe can be kept in a resting state, increasing its durability, and the ultrasonic probe itself can reduce its temperature when not in use, preparing it for the next start-up.
[0137] The processor is used to determine whether the ultrasound probe is in a scanning state, including:
[0138] S110: The processor receives two consecutive frames of ultrasound images;
[0139] S120: Calculate the optical flow field of the two frames of the ultrasound images and obtain the direction and amplitude of pixel motion of the ultrasound images;
[0140] S130: Calculate the motion vector of the pixels in the ultrasound image based on the direction and amplitude of the acquired pixel motion;
[0141] S140: Determine whether the ultrasonic probe is in a scanning state based on the comparison between the motion vector and the set threshold;
[0142] If the motion vector is less than a set threshold, the ultrasound probe is determined to be in an unscanned state; if the motion vector is greater than or equal to the set threshold, the ultrasound probe is determined to be in a scanning state.
[0143] It's important to note that optical flow refers to the motion patterns of objects, surfaces, or edges in ultrasound images, caused by the relative motion between the observer and the scene. Essentially, it's a two-dimensional vector field, where each vector represents the instantaneous motion vector (i.e., displacement direction and magnitude) of a pixel between two consecutive frames. The optical flow field here is simply the collection of this two-dimensional vector field, assigning a motion vector to each pixel (or each small region) in the image.
[0144] Based on the above tests, the determination process can be used to determine whether the ultrasonic probe is in a scanning state. Furthermore, if the ultrasonic probe is in an unscanned state, the transmission and reception of the ultrasonic probe can be disconnected. This can save energy, allow the ultrasonic probe to rest, increase its durability, and reduce its temperature when not in operation, thus preparing it for the next start-up.
[0145] It's important to note that the above judgment can be implemented precisely in conjunction with time. For example, if the motion vector is less than a set threshold within 30 seconds, the transmission and reception of the ultrasound probe can be disconnected. Alternatively, the display can be set to a frozen state. That is, after 30 seconds of inactivity, the display shows a frozen state, and the transmission and reception of the ultrasound probe are disconnected. Afterward, to continue using the ultrasound imaging device, the user simply needs to click the unfreeze button, and the ultrasound probe will be reactivated. This operation process aligns with user habits, allowing users to better identify and confirm the status of the ultrasound probe.
[0146] It should be noted that since the ultrasonic waves emitted by the ultrasound probe cannot be heard by the human ear, the freeze mode in the operation interface, as described above, can effectively help users make judgments and identifications.
[0147] In this embodiment, S120: Calculating the optical flow field of the two frames of ultrasound images and obtaining the direction and amplitude of the pixel motion of the ultrasound images includes:
[0148] S121: Select a portion of the ultrasound image as a bounding box area;
[0149] S122: Calculate the direction and amplitude of the movement of the ultrasound image pixels in the selected area.
[0150] Based on the above operation process, that is, only a portion of the ultrasound image is selected to calculate the direction and amplitude of pixel motion in the ultrasound image, and a portion of the ultrasound image is used to replace the entire ultrasound image. In this way, the processor's calculation program can be significantly reduced, saving computing resources.
[0151] The above-mentioned selection of a portion of the ultrasound image as a bounding box can be from 5% to 50% of the original ultrasound image. For example, the region can be 50%, 45%, 40%, 35%, 30%, 25%, 20%, 15%, 10%, or 5%.
[0152] Furthermore, the number of selected regions can be set to multiple, with these regions spaced apart on the ultrasound image. This configuration prevents a single area of the ultrasound image from remaining unchanged, which could cause the ultrasound probe to shut down.
[0153] In one embodiment, the plurality of selected regions are sequentially identified;
[0154] If the current motion vector is greater than a set threshold, then the ultrasound probe is determined to be in a scanning state;
[0155] If the current motion vector is less than a set threshold, then identify the next selected region;
[0156] If the motion vector of each selected region is less than a set threshold, the ultrasound probe is determined to be in an unscanned state.
[0157] For example, a bounding box can be set in the lower left and upper right corners of the ultrasound image. If the lower left bounding box remains unchanged, the upper right bounding box will change. Therefore, the scanning status can be calculated using the upper right bounding box. For instance, if the upper right bounding box is located in the lower left corner and its appearance remains unchanged across two frames, it would be identified as the ultrasound probe not scanning, based solely on the image shown. However, in reality, as shown in the reference image, the ultrasound image in that area may change in other areas. This improves the accuracy of the processor's recognition. Of course, this is just one embodiment; in practice, multiple bounding boxes can be designed, such as four bounding boxes located at the four corners of the ultrasound image.
[0158] In addition, based on the above-mentioned setting of multiple selection areas, the judgment method can be set to, after the first selection area in two ultrasound images is compared, if it is determined that it is not in the scanning state, then continue to compare the other selection area.
[0159] If all regions are determined to be not in a scanning state, the transmission and reception of the ultrasound probe will be disconnected. If the motion vector in one of the selected regions is greater than a predetermined value compared with a set threshold, the ultrasound probe will be determined to be in a scanning state.
[0160] First, the lower left selected area is assessed, and the motion vector within this area is compared with a set threshold to determine if the ultrasound probe is in an unscanned state. Next, the lower right selected area is assessed, and the motion vector within this area is compared with the set threshold to determine if the ultrasound probe is in an unscanned state. Finally, the upper right selected area is assessed, and the motion vector within this area is compared with the set threshold to determine if the ultrasound probe is in a scanning state. This is merely an example; the actual assessment order is not limited in this application.
[0161] This application proposes a scanning method for ultrasonic equipment, comprising:
[0162] S310: Performs ultrasonic scanning on the area to be scanned, receives scanning signals and generates B-mode ultrasound images;
[0163] S320: The instruction to place the M-line is activated via the first touch;
[0164] S330: In response to the first touch activation command to place the M-line, the M-line is set on the B-mode ultrasound image, and the M-line is movable.
[0165] S340: Move the M line via the second touch;
[0166] S350: In response to the completion command of the second touch-sensitive moving M-line, start generating an M-mode ultrasound image.
[0167] It should be noted that before the M-mode ultrasound image is generated, the display area is occupied by the B-mode ultrasound image, which has the highest clarity. After the M-mode ultrasound image is generated, both the B-mode and M-mode ultrasound images are set in the display area. This process involves the B-mode ultrasound image being reduced to about half of its original size, and then the remaining space is occupied by the M-mode ultrasound image. Therefore, the clarity of the B-mode ultrasound image is reduced.
[0168] The above steps, which describe the specific operation process for activating M-mode ultrasound in this application, can be understood as follows: First, place an M-line on the B-mode ultrasound image; then drag the M-line to any position; finally, release the drag on the M-line to generate an M-mode ultrasound image. The M-mode ultrasound image is only activated after the user drags and releases the M-line. Therefore, the user can manipulate the M-line on a larger B-mode ultrasound image, allowing it to be positioned more precisely. Only after this is the M-mode ultrasound image generated, thus ensuring more accurate placement of the desired M-mode ultrasound image.
[0169] Furthermore, the scanning method described above for ultrasound equipment is very intuitive for operators and conforms to the imaging process of M-mode ultrasound images. The operation is very smooth and can greatly assist users in the operation.
[0170] In one embodiment, the M-shaped ultrasound image includes a first side and a second side, and the M-shaped ultrasound image is gradually formed from the first side to the second side, including a previous M-shaped ultrasound image and a subsequent M-shaped ultrasound image.
[0171] Once the M-shaped ultrasound image is formed to the second side, the previous M-shaped ultrasound image is completed. The subsequent M-shaped ultrasound image is formed from the first side to the second side, covering part of the previous M-shaped ultrasound image and retaining the uncovered portion of the previous M-shaped ultrasound image. That is, the subsequent image is regenerated from scratch and gradually covers the previous image.
[0172] It should be noted that the aforementioned first M-type ultrasound image and second M-type ultrasound image are two M-type ultrasound images formed sequentially. After the first M-type ultrasound image is formed to the second side, the second M-type ultrasound image is generated directly.
[0173] In this embodiment, neither the preceding nor the following M-mode ultrasound image is moved after generation, allowing users to perform static observation and analysis of the existing presentation. In particular, the method of overwriting the preceding image during the generation of the following image ensures that the remaining portion of the preceding M-mode ultrasound image is easily observable.
[0174] In one embodiment, the M-shaped ultrasound image includes a first side, a second side, and a connecting line between the first and second sides. The first and second sides are positioned opposite each other. The portion extending from the connecting line to the second side is a preceding M-shaped ultrasound image, and the portion extending from the first side to the connecting line is a subsequent M-shaped ultrasound image. The preceding and subsequent M-shaped ultrasound images are two consecutively generated frames. The preceding and subsequent M-shaped ultrasound images are stitched together to form a single M-shaped ultrasound image.
[0175] In some embodiments, when an ultrasound image is frozen, the subsequent M-type ultrasound image is moved as a whole so that the connecting line end coincides with the second side, and the preceding M-type ultrasound image is moved as a whole so that the connecting line end coincides with the first side, and the preceding M-type ultrasound image and the subsequent M-type ultrasound image are non-overlapping, thereby stitching together a new M-type ultrasound image.
[0176] Due to the way the preceding and subsequent M-mode ultrasound images were generated, the image freeze process contains portions of both the preceding and subsequent M-mode ultrasound images, and these portions are not arranged in chronological order. Therefore, if this image is presented directly to the user, the user will use the out-of-order images during the freeze analysis, which could easily lead to incorrect analysis results.
[0177] In this embodiment, the subsequent M-type ultrasound image is moved to the second side, and the preceding M-type ultrasound image is moved to the first side, thereby stitching them together to form a single M-type ultrasound image. In other words, the preceding and subsequent M-type ultrasound images are stitched together in chronological order to create a new image. This allows users to perform data analysis more effectively and conveniently, reduces the error rate, and is more intuitive to use.
[0178] This application proposes a method for wirelessly connecting an ultrasonic probe to a host computer, including:
[0179] S510: Receives the initial pairing request from the ultrasound probe and the main unit, and establishes the initial wireless connection;
[0180] S520: Save the pairing parameters generated during this pairing process to form pairing information corresponding to the ultrasound probe and the host;
[0181] S530: Upon receiving a subsequent connection command, read the pairing information from the storage medium;
[0182] S540: Detect whether the ultrasonic probe is in the on state;
[0183] If the ultrasound probe is in the on state, the wireless connection between the ultrasound probe and the host will be automatically initiated and completed based on the pairing information.
[0184] If the ultrasound probe is in the off state, the connection will be terminated.
[0185] In other words, the method for wirelessly connecting the ultrasound probe and the host in this application records the connection information after the initial connection, and subsequent pairings can be completed simply by clicking on the previous pairing information.
[0186] Once the initial connection is complete, subsequent pairings are straightforward; simply check if the ultrasound probe is on. If it is, connect directly. This process is extremely simple and convenient, significantly saving user time and providing a superior user experience.
[0187] In one embodiment, the wireless connection includes a Wi-Fi connection and a Bluetooth connection;
[0188] When the amount of data transmitted between the ultrasound probe and the host is detected to be higher than a first predetermined threshold, the ultrasound probe and the host transmit data via WIFI.
[0189] When the amount of data transmitted between the ultrasound probe and the host is detected to be lower than a first predetermined threshold, the ultrasound probe and the host transmit data via Bluetooth or transmit part of the data via WIFI and Bluetooth respectively.
[0190] Based on the above settings, when the amount of data to be transmitted is small, it can be transferred via Bluetooth or by connecting via both Wi-Fi and Bluetooth simultaneously. This switching or coordinated approach can make data transmission more stable.
[0191] In one embodiment, the transmitted data includes control data and ultrasound image data;
[0192] When the amount of data transmitted between the ultrasound probe and the host is detected to be lower than a first predetermined threshold, the control data is transmitted via Bluetooth and the ultrasound image data is transmitted via the WIFI module.
[0193] The control data refers to control commands for the host and / or the ultrasonic probe.
[0194] Generally, control data is more important than ultrasound image data in the transmitted data. Based on the above analysis, when switching to simultaneous data transmission via Wi-Fi and Bluetooth, the Wi-Fi module already encountered transmission problems. Therefore, this embodiment entrusts the more important control data to Bluetooth transmission, thereby ensuring that the transmission between the ultrasound probe and the host can at least guarantee mutual control.
[0195] In one embodiment, when the transmission frame rate between the ultrasound probe and the host is detected to be less than a first frame rate, an auxiliary imaging means is activated to compensate for the reduced dynamic information due to the reduced frame rate.
[0196] The auxiliary imaging method involves using an artificial intelligence model to identify the previous frame image, predict the next frame image, and then insert the predicted next frame image into the previous frame image for display.
[0197] By performing the frame interpolation operation described above, the continuity of the image can be guaranteed to the greatest extent possible, resulting in a better visual effect. This, in turn, allows for better diagnostics.
[0198] This application proposes a method for annotating ultrasound images, including:
[0199] S610: Emits ultrasonic signals to the scanned area and receives ultrasonic signals to generate ultrasonic images;
[0200] S620: In response to the received annotation command, an annotation box and an input area are overlaid on the user interface displaying the ultrasound image, wherein the input area is provided with multiple shortcut sub-areas;
[0201] S630: In response to the selection instruction for any of the shortcut sub-areas, the annotation content corresponding to the selected shortcut sub-area is automatically filled into the annotation box.
[0202] The positional relationship between the annotation box and the input area is not described in this embodiment. The annotation box and the input area can be arranged vertically or horizontally, as long as the display interface includes both the annotation box and the input area, it is within the scope of protection of this application. Furthermore, the above-mentioned overlay display means that it is displayed directly above the ultrasound image, thus partially obscuring the ultrasound image.
[0203] In one embodiment, before automatically filling the annotation box with the annotation content corresponding to the selected shortcut sub-area in response to the selection instruction for any of the shortcut sub-areas;
[0204] Automatically identify location information in ultrasound images;
[0205] Based on the location information, generate multiple annotation contents corresponding to the location information;
[0206] Among them, multiple annotation contents are set within the shortcut sub-area.
[0207] The aforementioned identification of location information in ultrasound images can include using traditional methods, such as extracting texture features from the image and then making a mechanical judgment. It can also include using a deep learning model to learn and output from existing images. Regardless of the method used, as long as the location information in the ultrasound image can be identified, it falls within the scope of protection of this application. Specific locations may include: the carotid artery, the heart, etc.
[0208] By using the above settings, content highly relevant to ultrasound images can be displayed, making it easier for users to select. This avoids situations where the shortcut content in the existing shortcut sub-areas is not what the user needs, thus improving the user experience.
[0209] In one embodiment, there are multiple ultrasound images, and these multiple ultrasound images are connected to form an ultrasound video. After the above annotations are completed, the annotation positions and contents are marked in each of the multiple interconnected ultrasound images according to the annotation content.
[0210] The specific process is as follows: extract the initial features of the target lesion region and the location of the target lesion region based on the annotation content and annotation location;
[0211] Based on the location of the target lesion region in the previous frame of ultrasound image, the search area of the current frame of ultrasound image is determined;
[0212] Within the search area, the feature representation of the search area is matched with the initial feature representation;
[0213] Based on the matching calculation results, the predicted location of the target lesion region in the current frame ultrasound image is determined;
[0214] Based on the predicted location of the target lesion region in the current frame and its image content, the above annotation content is marked on the image of this frame.
[0215] The initial feature representation extracted in the initialization step includes at least one of the following: grayscale and texture features of the target, edge features, shape features, and depth features extracted based on a deep neural network.
[0216] In this way, an entire video can be annotated with just one image, allowing for excellent viewing of continuous video streams. This significantly reduces the burden of annotation and saves annotation time.
[0217] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
[0218] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.
Claims
1. An ultrasound imaging device, the ultrasound imaging device comprising a display device, the display device having a user interface, characterized in that, The user interface includes: Ultrasound images, used to display the internal tissue structure of the scanned area; A sampling gate is located within the ultrasound image, and an adjustable sampling line is provided at the sampling gate. The sampling gate is used to mark the location of blood vessels on the internal tissue structure. A sampling gate adjustment area is provided on the user interface, with the sampling gate and the sampling gate being spaced apart. The sampling gate adjustment area includes a virtual sampling gate and a virtual sampling line provided on the virtual sampling gate. When the virtual sampling line is rotated, the angle of the sampling line follows the rotation of the virtual sampling line.
2. The ultrasonic imaging device according to claim 1, characterized in that, The sampling gate adjustment area has a first state and a second state. After receiving a conversion signal, the sampling gate adjustment area jumps from the first state to the second state. After receiving a conversion signal again, the sampling gate adjustment area jumps from the second state to the first state. When the sampling gate adjustment area changes from the first state to the second state, a ring pattern is provided on the outside of the virtual sampling gate and the virtual sampling line; When the sampling gate adjustment area changes from the second state to the first state, the annular pattern on the outside of the virtual sampling gate disappears.
3. The ultrasonic imaging device according to claim 2, characterized in that, When the sampling gate adjustment area changes from the first state to the second state, the virtual sampling gate, the virtual sampling line, and the annular pattern are all displayed as dashed lines.
4. The ultrasonic imaging device according to claim 2, characterized in that, When the sampling gate adjustment area changes from the first state to the second state, an angle display area appears in the sampling gate adjustment area; When the sampling gate adjustment area changes from the second state to the first state, the angle display area disappears; The angle display area is used to display the angle of rotation of the virtual sampling line.
5. The ultrasonic imaging device according to claim 4, characterized in that, The angle display area includes a first display style and a second display style; When the virtual sampling line rotates to the first range, the angle display area displays in the first display style; when the virtual sampling line rotates to the second range, the angle display area displays in the second display style.
6. The ultrasonic imaging device according to claim 1, characterized in that, The virtual sampling line includes multiple predetermined angles arranged from the center outwards. The virtual sampling line rotates sequentially to a predetermined angle and records the sampling information corresponding to the predetermined angle. Compare each sampled information to determine the required angle range; The required angle range is the range between the predetermined angle corresponding to the maximum value in the sampled information and its two adjacent predetermined angles.
7. The ultrasonic imaging device according to claim 6, characterized in that, The required angle range is displayed in the first style, and the remaining angle range is displayed in the second style. The virtual sampling line is restricted to rotating within the required angle range.
8. The ultrasonic imaging device according to claim 6, characterized in that, After determining the scope of the demand perspective Divide the demand angle range into multiple sub-intervals and set multiple next predetermined angles; The virtual sampling line rotates sequentially to the next predetermined angle and records the sampling information corresponding to the next predetermined angle. Compare each sampled information to determine the next required angle range, which is the range between the predetermined angle corresponding to the maximum value in the sampled information and its two adjacent predetermined angles; Repeat the above steps until the maximum value in the sampled information is determined.
9. The ultrasonic imaging device according to claim 1, characterized in that, The user interface also includes an image adjustment area located on one side of the ultrasound image, and the sampling gate adjustment area is located in the image adjustment area.
10. The ultrasonic imaging device according to claim 1, characterized in that, The user interface also includes a preset adjustment button. When the preset adjustment button is clicked, the sampling line rotates to a preset angle.
11. The ultrasonic imaging device according to claim 10, characterized in that, The preset angle includes at least a first preset angle and a second preset angle, and the difference between the first preset angle and the second preset angle is 45°. The sampling line can be switched between the first preset angle and the second preset angle by clicking the preset adjustment button. And / or, The user interface includes parallel lines, the angle between the first preset angle and the parallel lines is set to 45°, and the angle between the second preset angle and the parallel lines is set to 90°.
12. A method for adjusting the angle of a sampling line, characterized in that, include: It sends ultrasound signals to the area being scanned to generate ultrasound images; Enter PW mode, and place the sampling line, sampling gate, and sampling area in the ultrasound image region; A sampling gate adjustment area is generated, and the sampling gate and the sampling gate are spaced apart. The sampling gate adjustment area includes a virtual sampling line, and the angle of the sampling line can be changed by rotating the virtual sampling line through touch.