Integrated quality control water model for testing image quality and image levelness
By designing an integrated quality control water mold, combining image quality and level testing, the problem that existing water molds cannot test image quality and level at the same time is solved, and a safer and more efficient CT quality control process is achieved.
Patent Information
- Application Number
- CN202420936672.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing water mold can only test the image quality alone, and cannot combine it with the test image level, resulting in cumbersome operation steps and the non-sealed water storage tank with risks of spilling and spilling, which cannot meet the quality control needs of radiotherapy positioning CT.
Design a quality control water mold that integrates image quality and image leveling, including image quality functional part and image leveling functional part. It is installed by connecting and installing the hook and hook holes and hole plugs to achieve image quality and leveling simultaneous testing to ensure safety and accuracy.
The simultaneous testing of image quality and level is achieved, the quality control steps are reduced, the safety and efficiency of the test are improved, and the risks of spilling and spilling are avoided. It is suitable for the quality control of radiotherapy positioning CT.
Smart Images
Figure CN222189907U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of CT image testing equipment, in particular to a quality control water model for integrating testing of image quality and image levelness. Background Art
[0002] With the application of computers and the development of medical imaging, radiotherapy for tumors has entered the era of "precise positioning, precise planning, and precise treatment". With the rapid development of precise radiotherapy technology, radiotherapy positioning accuracy plays a vital role. In the process of debugging and testing accuracy, the accuracy and ease of use of the test phantom are extremely important. At present, for the image quality control of conventional diagnostic CT, different phantoms need to be used back and forth, but the water phantom can only view the image CT value and other related indicators; in the image quality control of radiotherapy positioning CT, unlike conventional diagnostic CT, the horizontality of the image is crucial. The most accurate conventional method to test the image level is to scan the horizontal plane, which requires the replacement of a water storage tank.
[0003] There are at least the following problems in the prior art: first, the water model in the prior art only has image quality test-related functions, and is not combined with the test image horizontality, which brings inconvenience to precision testing and quality control, and is not suitable for radiotherapy positioning CT, resulting in more operating steps; second, the water storage trough is not sealed, and there are problems such as spillage and overflow during the replacement process, which poses a certain risk. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model develops a quality control water phantom that integrates image quality and image levelness testing. The utility model can integrate image quality testing and image levelness testing, and the use of the two functional parts does not interfere with each other, while ensuring the safety of the test, effectively improving the use effect of the quality control water phantom.
[0005] The technical solution to the technical problem solved by the utility model is: a quality control water model for testing image quality and image levelness in an integrated manner, comprising an image quality function part and an image levelness function part, a first water injection cavity is provided inside the image quality function part, the middle part of one end of the image quality function part is connected to the middle part of one side of the image levelness function part, and a second water injection cavity is provided inside the image levelness function part.
[0006] As an optimization, a hanging handle is horizontally provided in the middle of the other end of the image quality function part. By providing the hanging handle, it can be connected with the phantom support, so as to install the integrated quality control water phantom.
[0007] As an optimization, the handle is in an "L" shape, with the opening of the handle facing downward.
[0008] As an optimization, a first water injection hole is provided at the top of the other end of the image quality functional part, and a first hole plug is detachably provided in the first water injection hole. By providing the first water injection hole and the first hole plug, pure water can be easily injected into the first water injection cavity. After removing the bubbles, the first hole plug can safely seal the first water injection hole to prevent the pure water in the first water injection cavity from leaking, which is safer.
[0009] As an optimization, a second water injection hole is provided on the top of the image level function part, and a second hole plug is detachably provided in the second water injection hole. By providing the second water injection hole and the second hole plug, pure water can be easily injected into the second water injection cavity, and the second hole plug can safely seal the second water injection hole to prevent the pure water in the second water injection cavity from spilling out and leaking. The second water injection hole is provided on the top of the image level function part, which is safer and more reliable during use, and there is no risk of water leakage or overflow.
[0010] As an optimization, the image quality function part is cylindrical, and the image level function part is rectangular. By setting the cylindrical image quality function part, it can be directly placed in the CT scanning center, so that the center of the image quality function part coincides with the scanning center, so as to perform image quality testing; by setting the rectangular image level function part, the deviation between the horizontal line indicated by the image and the actual horizontal plane can be accurately determined by scanning the horizontal plane, which is convenient for the debugging of radiotherapy positioning and the process of testing accuracy.
[0011] As an optimization, the diameter of the image quality function portion is less than or equal to the length of the image levelness function portion, and the diameter of the image quality function portion is greater than or equal to the height of the image levelness function portion.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] By setting the image quality function unit and the first water injection chamber, the noise value, uniformity, accuracy and presence of artifacts of the CT value can be tested, and the first water injection chamber is a sealed chamber, which is safe to use and will not leak; by setting the image levelness function unit, the levelness of the image can be tested, and the second water injection chamber is a sealed chamber, which is safe to use and will not leak; by setting the image quality function unit to be connected with the image levelness function unit, an integrated design is completed, and the use of the two functional units does not interfere with each other, and there is no need to replace other water storage devices to test the image levelness in the radiotherapy positioning CT image quality control, which can directly reduce the test steps, shorten the quality control process, and realize faster CT quality control; the utility model can integrate the image quality test with the image levelness test, the use of the two functional units does not interfere with each other, and can ensure the safety of the test, thereby effectively improving the use effect of the quality control water model. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a front view of an embodiment of the utility model.
[0015] Figure 2 It is a left view of an embodiment of the utility model.
[0016] Figure 3 It is a rear view of an embodiment of the utility model.
[0017] Figure 4 The utility model is a top view of an embodiment.
[0018] In the figure, 1, image quality function unit; 2, image levelness function unit; 3, hanging handle; 4, first hole plug; 5, second hole plug. DETAILED DESCRIPTION
[0019] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.
[0020] Example 1
[0021] Figures 1 to 4 An embodiment of the present utility model is as follows: Figures 1 to 4 As shown, a quality control water model for testing image quality and image levelness in an integrated manner includes an image quality functional part 1 and an image levelness functional part 2. A first water injection chamber is provided inside the image quality functional part 1, and the middle part of one end of the image quality functional part 1 is connected to the middle part of one side of the image levelness functional part 2. A second water injection chamber is provided inside the image levelness functional part 2. Pure water is provided in both the first water injection chamber and the second water injection chamber. The first water injection chamber is filled with pure water, and the second water injection chamber is filled with pure water that is greater than or equal to one-half and less than or equal to two-thirds of the volume of the second water injection chamber.
[0022] By setting the image quality function part 1 and the first water injection chamber, the noise value, uniformity, accuracy and presence of artifacts of the CT value can be tested, and the first water injection chamber is a sealed chamber, which is safe to use and will not leak; by setting the image levelness function part 2, the levelness of the image can be tested, and the second water injection chamber is a sealed chamber, which is safe to use and will not leak; by setting the image quality function part 1 to be connected with the image levelness function part 2, an integrated design is completed, and the use of the two functional parts does not interfere with each other, and there is no need to replace other water storage devices to test the image levelness in the radiotherapy positioning CT image quality control, which can directly reduce the test steps, shorten the quality control process, and realize faster CT quality control.
[0023] like Figure 1 , Figure 2 and Figure 4 As shown, a hanging handle 3 is horizontally arranged in the middle of the other end of the image quality functional part 1. By setting the hanging handle 3, it can be connected with the phantom support, so as to install the integrated quality control water phantom.
[0024] The handle 3 is in an "L" shape, and the opening of the handle 3 is downward. It is convenient to connect with the model support, so as to install the integrated quality control water model.
[0025] like Figures 1 to 4 As shown, a first water injection hole is provided at the top of the other end of the image quality functional part 1, and a first hole plug 4 is detachably provided in the first water injection hole. By providing the first water injection hole and the first hole plug 4, pure water can be conveniently injected into the first water injection cavity. After removing the bubbles, the first hole plug 4 can safely seal the first water injection hole to prevent the pure water in the first water injection cavity from leaking, which is safer.
[0026] like Figures 1 to 4 As shown, a second water injection hole is provided at the top of the image level function part 2, and a second hole plug 5 is detachably provided in the second water injection hole. By providing the second water injection hole and the second hole plug 5, pure water can be conveniently injected into the second water injection cavity, and the second hole plug 5 can safely seal the second water injection hole to prevent the pure water in the second water injection cavity from spilling out and leaking. The second water injection hole is provided at the top of the image level function part 2, which is safer and more reliable during use, and there is no risk of water leakage or overflow.
[0027] like Figures 1 to 4 As shown, the image quality function part 1 is cylindrical, and the image level function part 2 is rectangular. By setting the cylindrical image quality function part 1, it can be directly placed in the CT scanning center, so that the center of the image quality function part 1 coincides with the scanning center, so as to perform image quality testing; by setting the rectangular image level function part 2, the deviation between the horizontal line indicated by the image and the actual horizontal plane can be accurately determined by scanning the horizontal plane, which is convenient for the debugging of radiotherapy positioning and the process of testing accuracy.
[0028] like Figures 1 to 4 As shown, the diameter of the image quality functional part 1 is less than or equal to the length of the image horizontality functional part 2, the diameter of the image quality functional part 1 is greater than or equal to the height of the image horizontality functional part 2, the diameter of the image quality functional part 1 is 20 cm, the length of the image quality functional part 1 is 15 cm, the height of the image horizontality functional part 2 is 10 cm, the length of the image horizontality functional part 2 is 30 cm, and the width of the image horizontality functional part 2 is 10 cm.
[0029] When in use, first fill the first water injection cavity with pure water through the first water injection hole, and after the bubbles are discharged, use the first hole plug 4 to safely seal the first water injection hole to prevent the pure water in the first water injection cavity from leaking; then inject pure water greater than or equal to one-half and less than or equal to two-thirds of the volume of the second water injection cavity into the second water injection cavity through the second water injection hole, and after the bubbles are discharged, use the second hole plug 5 to safely seal the first water injection hole to prevent the pure water in the first water injection cavity from leaking, thus completing the water injection operation of the image quality function part 1 and the image levelness function part 2; then hang the intrinsic water control model on the model bracket through the hanging handle 3; test the image quality, such as CT value noise, CT value accuracy, uniformity, and the presence or absence of artifacts When testing the image, place the image quality function unit 1 at the CT scanning center so that the center of the circle coincides with the scanning center; when testing the image horizontality, place the image horizontality function unit 2 at the laser light in the scanning aperture to obtain a horizontal cross-sectional image, so as to facilitate viewing the deviation between the horizontal line indicated by the image and the actual horizontal plane; the image quality function unit 1 and the image horizontality function unit 2 are integrated in design, and the use of the two function units does not interfere with each other. There is no need to replace other water storage devices to test the image horizontality in the radiotherapy positioning CT image quality control, which can directly reduce the test steps, shorten the quality control process, and achieve faster CT quality control. It can also ensure the safety of the test and effectively improve the use effect of the quality control water model.
[0030] The descriptions of the orientation or relative position relationship of the structure in the present invention, such as the orientation or relative position relationship indicated by "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
Claims
1. A quality control water phantom for testing image quality and image levelness, characterized by: The image quality function part (1) comprises an image quality function part (1) and an image levelness function part (2); a first water injection cavity is provided inside the image quality function part (1); the middle of one end of the image quality function part (1) is connected to the middle of one side of the image levelness function part (2); and a second water injection cavity is provided inside the image levelness function part (2).
2. The integrated quality control water phantom for testing image quality and image levelness according to claim 1 is characterized by: A hanging handle (3) is horizontally provided at the middle of the other end of the image quality functional part (1).
3. The integrated quality control water phantom for testing image quality and image levelness according to claim 2 is characterized by: The hanging handle (3) is in an L-shape, and the opening of the hanging handle (3) faces downward.
4. The quality control water phantom for testing image quality and image levelness according to claim 3 is characterized by: A first water injection hole is provided at the top of the other end of the image quality functional part (1), and a first hole plug (4) is detachably provided in the first water injection hole.
5. The quality control water phantom for testing image quality and image levelness according to claim 4 is characterized by: A second water injection hole is provided on the top of the image levelness functional part (2), and a second hole plug (5) is detachably provided in the second water injection hole.
6. The quality control water phantom for testing image quality and image levelness according to any one of claims 1 to 5, characterized in that: The image quality function part (1) is cylindrical, and the image levelness function part (2) is rectangular.
7. The quality control water phantom for testing image quality and image levelness according to claim 6 is characterized by: The diameter of the image quality functional portion (1) is less than or equal to the length of the image levelness functional portion (2), and the diameter of the image quality functional portion (1) is greater than or equal to the height of the image levelness functional portion (2).