Mammary gland positioning and pressing device for mammary gland examination

Abstract

The invention discloses a mammary gland positioning and pressing device for mammary gland examination, which belongs to the technical field of mammography, and comprises a device body and a shooting device, and further comprises an L-shaped tray fixedly connected with a second electric sliding table mounted on the device body; the compression plate is used for performing compression treatment on the breasts placed on the L-shaped tray; the information acquisition module is used for acquiring breast shooting state information and breast thickness information; the image evaluation module is used for carrying out quality evaluation on the acquired mammary gland image; the breast thickness imaging deviation module is used for generating a breast thickness imaging deviation coefficient; a breast thickness imaging determination module for generating a breast imaging determination thickness; the driving module is used for starting the linear motion assembly to adjust the position of the compression plate so as to adjust the breast thickness of the mammary gland on the L-shaped tray to the determined breast imaging thickness; the breast compression thickness of a detected person can be accurately adjusted, so that more accurate breast imaging is obtained.

Description

Technical Field

[0001] The invention belongs to the technical field of mammography, and in particular relates to a breast positioning and compression device for breast examination. Background Art

[0002] Breast compression during breast X-ray examinations (such as mammography) may cause patients to feel some discomfort or pain, but it plays a vital role in breast detection. Compression can not only improve clarity and reduce radiation dose, but also help better identify abnormal changes in the breast, thereby increasing the early detection rate of diseases such as breast cancer. Therefore, moderate compression in breast examinations is very necessary.

[0003] During breast X-ray examinations (such as mammography), the compressed thickness of the breast is a key factor that directly affects the image quality, examination accuracy, and patient comfort. Judging whether the breast is compressed to the appropriate thickness and adjusting it to the appropriate thickness is the key to the success of the breast examination. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a breast positioning and compression device for breast examination, which solves the above-mentioned problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a breast positioning and compression device for breast examination, comprising a device body, and also comprising:

[0006] An L-shaped tray fixedly connected to a second electric slide mounted on the device body;

[0007] The shooting device is fixedly connected to the third electric slide mounted on the upper end of the L-shaped tray;

[0008] A compression plate connected to a linear motion assembly mounted on the L-shaped tray, and used for compressing a breast placed on the L-shaped tray;

[0009] An information acquisition module, used to acquire breast photography status information and breast thickness information, wherein the breast photography status information includes image clarity information, image contrast information, and acquisition environment brightness information;

[0010] An image assessment module, used to assess the quality of acquired breast images;

[0011] A breast thickness imaging deviation module constructs a breast thickness deviation model based on the evaluation results of the image evaluation module and generates a breast thickness imaging deviation coefficient;

[0012] A breast thickness imaging determination module constructs a breast thickness imaging determination model according to the current thickness and the breast thickness imaging deviation coefficient output by the breast thickness imaging deviation module, and generates a breast imaging determination thickness;

[0013] The driving module is electrically connected to the linear motion component and is used to start the linear motion component to adjust the position of the compression plate so that the breast thickness of the breast located on the L-shaped tray is adjusted to the thickness determined by breast imaging.

[0014] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0015] Further technical solution: The image evaluation module evaluates in the following manner: the acquired image clarity information and image contrast information are compared with the preset image clarity threshold and image contrast threshold; if either of the two is not within the corresponding threshold, adjustment information is generated.

[0016] Further technical solution: The steps for obtaining the breast thickness imaging deviation coefficient are as follows:

[0017] The breast thickness imaging deviation module receives the adjustment information generated by the image evaluation module and constructs a breast thickness deviation model based on the breast shooting status information collected by the information collection module;

[0018] The acquired image clarity information, image contrast information and acquisition environment brightness information are introduced into the breast thickness deviation model to output the breast thickness imaging deviation coefficient. The breast thickness imaging deviation model is expressed as:

[0019]

[0020] Among them, HB(R,C,LX) represents the breast thickness imaging deviation coefficient, R represents the image clarity information, C represents the image contrast information, LX represents the acquisition environment brightness information, and α and β are weight coefficients.

[0021] Further technical solution: The method for obtaining the thickness coefficient determined by breast imaging is as follows:

[0022] A breast thickness imaging determination model is constructed according to the current breast thickness and the breast thickness imaging deviation coefficient output by the breast thickness imaging deviation module, and the acquired current breast thickness information and the breast thickness imaging deviation coefficient are introduced into the breast thickness imaging determination model to output the breast imaging determined thickness. The breast thickness imaging determination model is expressed as:

[0023]

[0024] Among them, HT(H new, HB(R,C,LX)) represents the thickness determined by breast imaging, HB(R,C,LX) represents the breast thickness imaging deviation coefficient, K represents the dimensionless weight information of the breast examinee, M represents the dimensionless height information of the breast examinee, R represents the image clarity information, C represents the image contrast information, LX represents the acquisition environment brightness information, and α and β are weight coefficients.

[0025] Further technical solution: the image contrast is the ratio of the difference between the standard brightness difference value and the brightness difference value in the current image to the standard brightness difference value, the image clarity information is the ratio of the difference between the standard resolution and the current image resolution to the standard resolution, the acquisition environment brightness information is the ratio of the brightness value of the current environment to the brightness value of the imaging standard environment, and the imaging standard environment brightness value is the average of the previously shot brightness values.

[0026] Further technical solution: the second electric slide is slidably matched with the first slide rail provided on the device body, and the third electric slide is slidably matched with the second slide rail provided on the upper end of the L-shaped tray.

[0027] Further technical solution: The linear motion assembly includes a first electric slide, a connecting block, a bearing block and a pressure sensor. The first electric slide is slidably matched with a third slide rail opened on the L-shaped tray. The connecting block is fixedly connected to the outer side surface of the first electric slide. The lower end of the connecting block is fixedly connected to the pressure sensor fixedly connected to the bearing block. The bearing block is fixedly connected to the compression plate.

[0028] Further technical solution: A wire filter is fixedly connected to the bearing surface of the L-shaped tray.

[0029] The present invention provides a breast positioning and compression device for breast examination, which has the following beneficial effects compared with the prior art:

[0030] 1. The present invention can push the compression plate to perform preliminary compression on the breast located on the L-shaped tray through a linear motion component. At this time, the acquired image clarity information and image contrast information are compared with the preset image clarity threshold and image contrast threshold. If either of the two is not within the corresponding threshold, adjustment information is generated. The breast thickness imaging deviation module receives the adjustment information generated by the image evaluation module and constructs a breast thickness deviation model according to the breast shooting state information collected by the information collection module. The acquired image clarity information, image contrast information and acquisition environment brightness information are imported into the breast thickness deviation model to output a breast thickness imaging deviation coefficient. A breast thickness imaging determination model is constructed according to the current breast thickness and the breast thickness imaging deviation coefficient output by the breast thickness imaging deviation module, and the acquired current breast thickness information and the breast thickness imaging deviation coefficient are imported into the breast thickness imaging determination model to output a breast imaging determination thickness. The driving module starts the linear motion component to adjust the position of the compression plate to adjust the breast thickness of the breast located on the L-shaped tray to the breast imaging determination thickness, and then adjusts the breast compression thickness to the optimal imaging thickness to improve the breast imaging quality of breast examination. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0032] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0033] Figure 3 For the present invention Figure 2 A-section structure enlarged schematic diagram.

[0034] Figure 4 This is a flow chart of breast thickness adjustment according to the present invention.

[0035] Notes on figure markings: 1. Device body; 2. L-shaped tray; 3. Shooting device; 4. Compression plate; 5. Linear motion assembly; 501. First electric slide; 502. Connecting block; 503. Supporting block; 504. Pressure sensor; 6. Wire filter; 7. Second electric slide; 8. Third electric slide. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0038] See also Figure 1 to Figure 4, provided in one embodiment of the present invention, is a breast positioning and compression device for breast examination, comprising a device body 1, and also comprising:

[0039] The L-shaped tray 2 is fixedly connected to the second electric slide 7 mounted on the device body 1;

[0040] The photographing device 3 is fixedly connected to the third electric slide 8 installed on the upper end of the L-shaped tray 2;

[0041] A compression plate 4 is connected to a linear motion assembly 5 mounted on the L-shaped tray 2 and is used to compress the breast placed on the L-shaped tray 2;

[0042] An information acquisition module, used to acquire breast photography status information and breast thickness information, wherein the breast photography status information includes image clarity information, image contrast information, and acquisition environment brightness information;

[0043] An image assessment module, used to assess the quality of acquired breast images;

[0044] A breast thickness imaging deviation module constructs a breast thickness deviation model based on the evaluation results of the image evaluation module and generates a breast thickness imaging deviation coefficient;

[0045] A breast thickness imaging determination module constructs a breast thickness imaging determination model according to the current thickness and the breast thickness imaging deviation coefficient output by the breast thickness imaging deviation module, and generates a breast imaging determination thickness;

[0046] A driving module, electrically connected to the linear motion component 5, for starting the linear motion component 5 to adjust the position of the compression plate 4 so that the breast thickness of the breast located on the L-shaped tray 2 is adjusted to the thickness determined by breast imaging;

[0047] The image evaluation module evaluates the image clarity information and image contrast information obtained by the image evaluation module by comparing the image clarity information and image contrast information with the preset image clarity threshold and image contrast threshold. If either of the two is not within the corresponding threshold, adjustment information is generated.

[0048] Image clarity refers to the ability to present details in an image, usually the ability of an image to display the smallest object detail or the smallest structural difference. An image with high clarity can display more details, while an image with poor clarity may be blurred or unable to display fine structures. In the present invention, the resolution of the image is used as the judgment standard, and the image clarity information is the ratio of the difference between the standard resolution and the current image resolution to the standard resolution;

[0049] Image contrast refers to the degree of brightness difference between different areas in an image (for example, between tissues). High-contrast images can better distinguish different tissues and structures, while low-contrast images may make it difficult to distinguish different areas. In the present invention, the ratio of the difference between the standard brightness difference value in the image and the brightness difference value in the current image to the standard brightness difference value is used to judge the level of image contrast, that is, the image contrast is the ratio of the difference between the standard brightness difference value and the brightness difference value in the current image to the standard brightness difference value.

[0050] The collected environment brightness information is the ratio of the brightness value of the current environment to the brightness value of the imaging standard environment, and the brightness value of the imaging standard environment is the average of the brightness values ​​of previous shots.

[0051] The steps to obtain the breast thickness imaging deviation coefficient are:

[0052] The breast thickness imaging deviation module receives the adjustment information generated by the image evaluation module and constructs a breast thickness deviation model based on the breast shooting status information collected by the information collection module;

[0053] The acquired image clarity information, image contrast information and acquisition environment brightness information are introduced into the breast thickness deviation model to output the breast thickness imaging deviation coefficient. The breast thickness imaging deviation model is expressed as:

[0054]

[0055] Among them, HB(R,C,LX) represents the breast thickness imaging deviation coefficient, R represents the image clarity information, C represents the image contrast information, LX represents the acquisition environment brightness information, and α and β are weight coefficients.

[0056] The thickness coefficient determined by breast imaging is obtained as follows:

[0057] A breast thickness imaging determination model is constructed according to the current breast thickness and the breast thickness imaging deviation coefficient output by the breast thickness imaging deviation module, and the acquired current breast thickness information and the breast thickness imaging deviation coefficient are introduced into the breast thickness imaging determination model to output the breast imaging determined thickness. The breast thickness imaging determination model is expressed as:

[0058]

[0059] Among them, HT(H new , HB(R,C,LX)) represents the thickness determined by breast imaging, HB(R,C,LX) represents the breast thickness imaging deviation coefficient, K represents the dimensionless weight information of the breast examinee, M represents the dimensionless height information of the breast examinee, R represents the image clarity information, C represents the image contrast information, LX represents the acquisition environment brightness information, and α and β are weight coefficients.

[0060] In the embodiment of the present invention, the linear motion component 5 is used to push the compression plate 4 to perform preliminary compression on the breast located on the L-shaped tray 2. At this time, the acquired image clarity information and image contrast information are compared with the preset image clarity threshold and image contrast threshold. If either of the two is not within the corresponding threshold, adjustment information is generated. The breast thickness imaging deviation module receives the adjustment information generated by the image evaluation module and constructs a breast thickness deviation model according to the breast shooting state information collected by the information collection module. The acquired image clarity information, image contrast information and acquisition environment brightness information are imported into the breast thickness deviation model to output a breast thickness imaging deviation coefficient. A breast thickness imaging determination model is constructed according to the current breast thickness and the breast thickness imaging deviation coefficient output by the breast thickness imaging deviation module, and the acquired current breast thickness information and the breast thickness imaging deviation coefficient are imported into the breast thickness imaging determination model to output a breast imaging determination thickness. The driving module starts the linear motion component 5 to adjust the position of the compression plate 4 to adjust the breast thickness of the breast located on the L-shaped tray 2 to the breast imaging determination thickness, and then the breast compression thickness is adjusted to the optimal imaging thickness to improve the breast imaging quality of breast examination.

[0061] See also Figure 1 to Figure 3 As an embodiment of the present invention, the second electric slide 7 is slidably matched with a first slide rail (not shown in the figure) provided on the device body 1, and the third electric slide 8 is slidably matched with a second slide rail provided on the upper end of the L-shaped tray 2. The purpose of this arrangement is to be able to use the second electric slide 7 to adjust the height of the L-shaped tray 2, and to use the third electric slide 8 to adjust the position of the shooting device 3 on the vertical plane.

[0062] See also Figure 1 to Figure 3 As an embodiment of the present invention, the linear motion component 5 includes a first electric slide 501, a connecting block 502, a bearing block 503 and a pressure sensor 504. The first electric slide 501 is slidably matched with a third slide rail (not shown in the figure) provided on the L-shaped tray 2. The connecting block 502 is fixedly connected to the outer side of the first electric slide 501. The lower end of the connecting block 502 is fixedly connected to the pressure sensor 504 fixedly connected to the bearing block 503. The bearing block 503 is fixedly connected to the compression plate 4. The purpose of this arrangement is to use the first electric slide 501 to push the connecting block 502 to drive the compression plate 4 to perform linear movement in the vertical direction, that is, to adjust the height of the compression plate 4 to achieve the purpose of using the compression plate 4 to compress the breast of the tester.

[0063] See also Figure 1As an embodiment of the present invention, a filter 6 is fixedly connected to the bearing surface of the L-shaped tray 2. The function of the filter 6 is to convert the X-ray into a rigid beam with relatively uniform energy distribution, reduce the X-ray radiation dose of the subject, optimize the energy spectrum of the ray, absorb low-energy X-rays, and reduce scattered rays, thereby improving the quality of mammographic imaging of the patient.

[0064] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A breast positioning and compression device for breast examination, comprising a device body (1), characterized in that: Also includes: An L-shaped tray (2) is fixedly connected to a second electric slide (7) mounted on the device body (1); A photographing device (3) is fixedly connected to a third electric slide (8) mounted on the upper end of the L-shaped tray (2); A compression plate (4) connected to a linear motion assembly (5) mounted on the L-shaped tray (2) and used for performing compression treatment on a breast placed on the L-shaped tray (2); An information acquisition module, used to acquire breast photography status information and breast thickness information, wherein the breast photography status information includes image clarity information, image contrast information, and acquisition environment brightness information; An image assessment module, used to assess the quality of acquired breast images; A breast thickness imaging deviation module constructs a breast thickness deviation model based on the evaluation results of the image evaluation module and generates a breast thickness imaging deviation coefficient; A breast thickness imaging determination module constructs a breast thickness imaging determination model according to the current thickness and the breast thickness imaging deviation coefficient output by the breast thickness imaging deviation module, and generates a breast imaging determination thickness; The driving module is electrically connected to the linear motion component (5) and is used to start the linear motion component (5) to adjust the position of the compression plate (4) so ​​as to adjust the breast thickness of the breast located on the L-shaped tray (2) to the thickness determined by breast imaging.

2. The breast positioning and compression device for breast examination according to claim 1, characterized in that: The image evaluation module evaluates in the following manner: the acquired image clarity information and image contrast information are compared with the preset image clarity threshold and image contrast threshold, and if either of the two is not within the corresponding threshold, adjustment information is generated.

3. The breast positioning and compression device for breast examination according to claim 1, characterized in that: The steps to obtain the breast thickness imaging deviation coefficient are: The breast thickness imaging deviation module receives the adjustment information generated by the image evaluation module and constructs a breast thickness deviation model based on the breast shooting status information collected by the information collection module; The acquired image clarity information, image contrast information and acquisition environment brightness information are introduced into the breast thickness deviation model to output the breast thickness imaging deviation coefficient. The breast thickness imaging deviation model is expressed as: Among them, HB(R,C,LX) represents the breast thickness imaging deviation coefficient, R represents the image clarity information, C represents the image contrast information, LX represents the acquisition environment brightness information, and α and β are weight coefficients.

4. The breast positioning and compression device for breast examination according to claim 1 or 3, characterized in that: The thickness coefficient determined by breast imaging is obtained as follows: A breast thickness imaging determination model is constructed according to the current breast thickness and the breast thickness imaging deviation coefficient output by the breast thickness imaging deviation module, and the acquired current breast thickness information and the breast thickness imaging deviation coefficient are introduced into the breast thickness imaging determination model to output the breast imaging determined thickness. The breast thickness imaging determination model is expressed as: Among them, HT(H new , HB(R,C,LX)) represents the thickness determined by breast imaging, HB(R,C,LX) represents the breast thickness imaging deviation coefficient, K represents the dimensionless weight information of the breast examinee, M represents the dimensionless height information of the breast examinee, R represents the image clarity information, C represents the image contrast information, LX represents the acquisition environment brightness information, and α and β are weight coefficients.

5. The breast positioning and compression device for breast examination according to claim 4, characterized in that: The image contrast is the ratio of the difference between the standard brightness difference value and the brightness difference value in the current image to the standard brightness difference value; the image clarity information is the ratio of the difference between the standard resolution and the current image resolution to the standard resolution; the acquisition environment brightness information is the ratio of the brightness value of the current environment to the brightness value of the imaging standard environment; the imaging standard environment brightness value is the average of the previously captured brightness values.

6. The breast positioning and compression device for breast examination according to claim 1, characterized in that: The second electric slide (7) is slidably matched with a first slide rail provided on the device body (1), and the third electric slide (8) is slidably matched with a second slide rail provided on the upper end of the L-shaped tray (2).

7. The breast positioning and compression device for breast examination according to claim (2), characterized in that: The linear motion component (5) includes a first electric slide (501), a connecting block (502), a bearing block (503) and a pressure sensor (504); the first electric slide (501) is slidably matched with a third slide rail provided on the L-shaped tray (2); the connecting block (502) is fixedly connected to the outer side surface of the first electric slide (501); the lower end of the connecting block (502) is fixedly connected to the pressure sensor (504) fixedly connected to the bearing block (503); and the bearing block (503) is fixedly connected to the compression plate (4).

8. The breast positioning and compression device for breast examination according to claim 1, characterized in that: A filter (6) is fixedly connected to the bearing surface of the L-shaped tray (2).

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