Standing CT scanning control method, device, equipment and medium

Abstract

The standing CT scanning control method, device, equipment and medium provided by the embodiments of the present disclosure are applied to a CT scanning system, which includes a scanning module, a support module and a first driving module, including: acquiring a scanning positioning image of the target object; determining the center position information of the region of interest according to the scanning positioning image; outputting a first control instruction to the first driving module according to the relationship between the center position information of the region of interest and the preset center position information of the scanning module, so as to drive the support module to move through the first driving module, so that the center position information of the region of interest of the target object standing on the support module is the same as the preset center position information of the scanning module. Ensure that the region of interest of the target object is within the scanning fan angle range of the scanning module, ensure the accuracy of the scanning data collected by the detector, improve the image quality of the region of interest, and reduce the radiation exposure of other regions of the target object.

Description

Technical Field

[0001] The present invention relates to the field of scanning technology and related technical fields, and in particular to a method, device, equipment and medium suitable for a standing CT scanning control method. Background Art

[0002] Computed Tomography (CT) technology is an advanced medical imaging method. It uses an X-ray tube to emit X-rays to the target scanning area and adjusts the size of the ray fan angle through a collimator. After these rays penetrate the body tissue, their intensity will vary depending on the density and structure of different tissues. When the attenuated rays are captured by the detector, the data are converted into three-dimensional images with the help of image reconstruction algorithms, providing an important basis for medical diagnosis.

[0003] Due to the influence of gravity, the anatomical morphology of human organs in different body positions will change significantly. Traditional medical imaging equipment mostly adopts supine scanning mode. However, for some specific diseases, their typical symptoms can only be fully manifested in a standing posture. For this reason, standing CT equipment came into being. It can realize full-body scanning of patients in a weight-bearing standing state through the vertical lifting of the scanning frame, greatly enriching the field of clinical diagnosis, providing doctors with medical images that are closer to the real physiological state, thereby improving the accuracy and reliability of diagnosis.

[0004] In the conventional scanning process, the standing CT device can carry the patient through the support module that moves back and forth and move the patient to the scanning center in the front and back position, ensuring that the lesion area is placed within the scanning fan angle range to ensure that the rays can penetrate the lesion without omission to complete the scan; however, when scanning local organs such as the heart, lungs, limbs, etc., because the lesions are usually biased towards the left or right side of the patient's body, the support module that can only move back and forth cannot make the aforementioned organs completely located in the center of the scanning range, which will directly cause the ray projection to be located in the edge channel of the detector, affecting the image quality of the lesion area. In addition, the ineffective penetration of rays outside the lesion area also increases the patient's radiation exposure, posing a potential threat to their health. Summary of the invention

[0005] The embodiments described herein provide a standing CT scanning control method, apparatus, device and medium to ensure that the region of interest of the target object is within the scanning fan angle range of the scanning module, thereby ensuring the accuracy of the scanning data of the region of interest collected by the detector, improving the image quality of the region of interest, and reducing the radiation exposure of other areas of the target object.

[0006] In a first aspect, according to the present disclosure, a standing CT scanning control method is provided, which is applied to a CT scanning system, wherein the CT scanning system includes a scanning module, a supporting module and a first driving module, including:

[0007] Acquire a scanning positioning image of the target object;

[0008] Determining the center position information of the region of interest according to the scanning positioning image;

[0009] According to the relationship between the center position information of the area of ​​interest and the preset center position information of the scanning module, a first control instruction is output to the first driving module to drive the supporting module to move through the first driving module, so that the center position information of the area of ​​interest of the target object standing on the supporting module is the same as the preset center position information of the scanning module.

[0010] In some embodiments of the present disclosure, the center position information of the region of interest includes X-axis position information and Y-axis position information, and the driving module includes a first driving unit and a second driving unit;

[0011] Outputting a first control instruction to a first driving module according to a relationship between the center position information of the region of interest and the preset center position information of the scanning module comprises:

[0012] Outputting a first sub-control instruction to a first driving unit according to the X-axis position information of the region of interest and the preset X-axis position information of the scanning module, so as to drive the supporting module to move along the X-axis direction through the first driving unit;

[0013] According to the Y-axis position information of the region of interest and the preset Y-axis position information of the scanning module, a second sub-control instruction is output to the second driving unit, so as to drive the supporting module to move along the Y-axis direction through the second driving unit.

[0014] In some embodiments of the present disclosure, when determining the center position information of the region of interest according to the scanned positioning image, the method further includes:

[0015] Determining radial length information of the region of interest along an XOY cross section according to the scanning positioning image;

[0016] The scanning mode of the scanning module is determined according to the relationship between the radial length information of the region of interest along the XOY section and the preset radial length information.

[0017] In some embodiments of the present disclosure, determining the scanning mode of the scanning module according to the relationship between the radial length information of the region of interest along the XOY section and the preset radial length information includes:

[0018] Obtaining the maximum radial length information of the region of interest along the XOY section;

[0019] When the maximum radial length information of the region of interest along the XOY cross section is greater than or equal to the preset radial length information, determining that the scanning module is in the standard scanning mode;

[0020] When the maximum radial length information of the region of interest along the XOY section is less than the preset radial length information, it is determined that the scanning module is in the small FOV scanning mode.

[0021] In some embodiments of the present disclosure, the CT scanning system further includes a second driving module, the scanning module includes at least a tube and a collimator, and the method further includes:

[0022] When the scanning module is in the small FOV scanning mode, a second control instruction is output to the second driving module according to the maximum radial length information of the region of interest along the XOY section, so as to drive the collimator to move through the second driving module, so that the width information of the ray sector generated by the X-ray emitted by the tube through the collimator is the same as the maximum radial length information of the region of interest along the XOY section.

[0023] In some embodiments of the present disclosure, the collimator includes a left collimation blade and a right collimation blade;

[0024] Outputting a second control instruction to a second driving module according to the maximum radial length information of the region of interest along the XOY section, so as to drive the collimator to move through the second driving module, comprises:

[0025] When the maximum radial length information of the region of interest along the XOY section is greater than the width information of the ray sector generated by the X-ray emitted by the tube through the collimator, outputting a third sub-control instruction to the second driving module, so as to drive the left collimator blade to move along the X-axis direction away from the center of the scanning module through the second driving module, and drive the right collimator blade to move along the X-axis direction away from the center of the scanning module through the second driving module;

[0026] When the maximum radial length information of the region of interest along the XOY section is less than the width information of the ray sector generated by the X-ray emitted by the tube through the collimator, a third sub-control instruction is output to the second driving module to drive the left collimation blade to move along the X-axis toward the center direction of the scanning module through the second driving module, and to drive the right collimation blade to move along the X-axis toward the center direction of the scanning module through the second driving module.

[0027] In some embodiments of the present disclosure, the method further includes:

[0028] Output a third control instruction to the tube to enable the tube to emit X-rays.

[0029] In a second aspect, according to the present disclosure, a standing CT scanning control device is provided, which is applied to a CT scanning system. The CT scanning system includes a scanning module, a supporting module and a first driving module, including:

[0030] A scanning positioning image acquisition module is used to acquire a scanning positioning image of a target object;

[0031] A center position information determination module, used to determine the center position information of the region of interest based on the scanned positioning image;

[0032] A control module is used to output a first control instruction to a first driving module based on the relationship between the center position information of the region of interest and the preset center position information of the scanning module, so as to drive the support module to move through the first driving module, so that the center position information of the region of interest of the target object standing on the support module is the same as the preset center position information of the scanning module.

[0033] In a third aspect, according to the present disclosure, there is provided a computer device, including:

[0034] one or more processors;

[0035] a storage device for storing one or more programs,

[0036] When the one or more programs are executed by the one or more processors, the one or more processors implement any method as described in the first aspect.

[0037] In a fourth aspect, according to the content of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, it implements any method as described in the first aspect.

[0038] The standing CT scanning control method, device, equipment and medium provided by the embodiment of the present disclosure first obtains the scanning positioning image of the target object; then determines the center position information of the region of interest according to the scanning positioning image; finally, according to the relationship between the center position information of the region of interest and the preset center position information of the scanning module, outputs a first control instruction to the first driving module, so as to drive the support module to move through the first driving module, so that the center position information of the region of interest of the target object standing on the support module is the same as the preset center position information of the scanning module. That is, in the CT scanning control method provided by the embodiment of the present disclosure, the center position information of the region of interest of the target object is adjusted based on the preset center position information of the scanning module, so that the center position information of the region of interest of the target object is the same as the preset center position information of the scanning module, ensuring that the lesion area (that is, the region of interest) of the target object is located within the scanning fan angle range of the scanning module and is in the optimal area of ​​the X-ray and the detector channel, thereby making the accuracy of the scanning data of the region of interest collected by the detector, improving the image quality of the region of interest, and reducing the radiation exposure of other areas of the target object.

[0039] The above description is only an overview of the technical solution of the embodiment of the present application. In order to more clearly understand the technical means of the embodiment of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly described below. It should be noted that the drawings described below only relate to some embodiments of the present disclosure, but are not intended to limit the present disclosure, wherein:

[0041] Figure 1 is a flow chart of a CT scanning control method provided by an embodiment of the present disclosure;

[0042] Figure 2A is a structural schematic diagram of a CT scanning system provided by an embodiment of the present disclosure;

[0043] Figure 2B is a schematic cross-sectional structure diagram of a CT scanning system provided by an embodiment of the present disclosure;

[0044] Figure 3 is a flow chart of another CT scanning control method provided by an embodiment of the present disclosure;

[0045] Figure 4 is a structural schematic diagram of a CT scanning control device provided by an embodiment of the present disclosure;

[0046] Figure 5 It is a structural diagram of a computer device provided in an embodiment of the present disclosure.

[0047] In the drawings, reference numerals with the same last two digits correspond to the same elements. It should be noted that the elements in the drawings are schematic and not drawn to scale. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative work also fall within the scope of protection of the present disclosure.

[0049] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by a person skilled in the art to which the subject matter of the present disclosure belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the specification and the relevant art, and will not be interpreted in an idealized or overly formal form unless otherwise explicitly defined herein. As used herein, a statement that two or more parts are "connected" or "coupled" together shall mean that the parts are joined together directly or through one or more intermediate components.

[0050] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0051] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0052] Furthermore, in all embodiments of the present disclosure, terms such as “first” and “second” are used only to distinguish one component (or a part of a component) from another component (or another part of a component).

[0053] In the description of the present application, unless otherwise specified, “plurality” means more than two (including two), and similarly, “plurality groups” means more than two (including two).

[0054] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0055] Based on the problems existing in the prior art, the embodiment of the present disclosure provides a standing CT scanning control method, which is applied to a CT scanning system. The CT scanning system is a standing CT scanning system. The CT scanning system includes a scanning module, a supporting module and a first driving module. Figure 1 is a flow chart of a CT scanning control method provided by an embodiment of the present disclosure, such as Figure 1 As shown, the standing CT scanning control method includes:

[0056] S110: Acquire a scanning positioning image of the target object.

[0057] Combination Figure 2A and Figure 2B The standing CT scanning system includes a scanning module 101, a supporting module 106 and a first driving module (not marked in the figure), wherein the scanning module 101 is the core component of the CT scanning system, including a tube 201, a collimator 202, a detector 205 and other key components, the supporting module 106 is a flat plate that stands when the target object is scanned, and the supporting module 106 is arranged on the base of the scanning room of the CT scanning system, and the first driving module can drive the supporting module 106 to move along the X-axis direction and the Y-axis direction. In addition, the CT scanning system also includes a base 105, a support plate 107, a scanning tray 102 and a vertical lifting frame 103, the scanning module 101 moves in a direction perpendicular to the base 105, the scanning tray 102 moves along the vertical lifting frame 103, and the movement of the scanning tray 102 drives the scanning module 101 to move, and by controlling the movement of the scanning tray 102, the scanning module 101 scans different scanning parts of the target object, and then obtains a scanning positioning image.

[0058] In the standing CT scanning control method provided by the embodiment of the present disclosure, before scanning the region of interest of the target object, a scanning positioning image of the target object is first acquired, and the region of interest is determined through the scanning positioning image of the target object.

[0059] S120: Determine the center position information of the region of interest according to the scanned positioning image.

[0060] After the positioning scan image is acquired, the center position information corresponding to the region of interest can be determined according to the scanned positioning image.

[0061] It should be noted that the scanning positioning image is a two-dimensional plane image, and therefore the center position information of the region of interest includes X-axis position information and Y-axis position information.

[0062] S130. According to the relationship between the center position information of the region of interest and the preset center position information of the scanning module, output a first control instruction to the first driving module to drive the supporting module to move through the first driving module, so that the center position information of the region of interest of the target object standing on the supporting module is the same as the preset center position information of the scanning module.

[0063] It should be noted that, since the CT scanning system is a standing CT scanning system, the scanning module moves vertically in a direction perpendicular to the supporting module. Therefore, in the process of overlapping the center position information of the target object's area of ​​interest with the preset center position information of the scanning module, only the X-axis position information of the target object's area of ​​interest is adjusted to overlap with the preset X-axis position information of the scanning module, and the Y-axis position information of the target object's area of ​​interest is adjusted to overlap with the preset Y-axis position information of the scanning module.

[0064] By comparing the relationship between the center position information of the area of ​​interest and the preset center position information of the scanning module, the first control instruction output to the first driving module is determined, and the first driving module is driven to move by the first control instruction, so that the center position information of the area of ​​interest of the target object is the same as the preset center position information of the scanning module.

[0065] In a specific embodiment, in combination with Figure 2A and Figure 2B When the scanning tray moves along the vertical lifting frame, the scanning tray drives the scanning module to move, so that the scanning module scans the target object to obtain a scanning positioning image, and then outputs a first control instruction to the first driving module by comparing the relationship between the center position information of the area of ​​interest in the scanning positioning image and the preset center position information of the scanning module, so as to drive the support module to move through the first driving module, so that the center position information of the area of ​​interest of the target object standing on the support module is the same as the preset center position information of the scanning module.

[0066] in, Figure 2B In the figure, 203 is a partial scan section of the target object, and 204 is a region of interest of the target object.

[0067] As a specific implementation, the driving module includes a first driving unit and a second driving unit.

[0068] According to the relationship between the center position information of the region of interest and the preset center position information of the scanning module, a first control instruction is output to the first driving module, including: according to the X-axis position information of the region of interest and the preset X-axis position information of the scanning module, a first sub-control instruction is output to the first driving unit to drive the supporting module to move along the X-axis direction through the first driving unit; according to the Y-axis position information of the region of interest and the preset Y-axis position information of the scanning module, a second sub-control instruction is output to the second driving unit to drive the supporting module to move along the Y-axis direction through the second driving unit.

[0069] Specifically, the preset center position information of the scanning module can be determined by the relative positions of the tube, the collimator and the detector in the scanning module.

[0070] If the X-axis position information of the region of interest is less than the preset X-axis position information of the scanning module, the first sub-control instruction is output to the first driving unit, and the supporting module is driven to move along the positive direction of the X-axis through the first driving unit. If the X-axis position information of the region of interest is greater than the preset X-axis position information of the scanning module, the first sub-control instruction is output to the first driving unit, and the supporting module is driven to move along the negative direction of the X-axis through the first driving unit. Similarly, if the Y-axis position information of the region of interest is less than the preset Y-axis position information of the scanning module, the second sub-control instruction is output to the second driving unit, and the supporting module is driven to move along the positive direction of the Y-axis through the second driving unit. If the Y-axis position information of the region of interest is greater than the preset Y-axis position information of the scanning module, the second sub-control instruction is output to the second driving unit, and the supporting module is driven to move along the negative direction of the Y-axis through the second driving unit.

[0071] The standing CT scanning control method provided by the embodiment of the present disclosure first obtains the scanning positioning image of the target object; then determines the center position information of the region of interest according to the scanning positioning image; finally, according to the relationship between the center position information of the region of interest and the preset center position information of the scanning module, outputs a first control instruction to the first driving module, so as to drive the support module to move through the first driving module, so that the center position information of the region of interest of the target object standing on the support module is the same as the preset center position information of the scanning module. That is, in the CT scanning control method provided by the embodiment of the present disclosure, the center position information of the region of interest of the target object is adjusted based on the preset center position information of the scanning module, so that the center position information of the region of interest of the target object is the same as the preset center position information of the scanning module, ensuring that the lesion area (that is, the region of interest) of the target object is located within the scanning fan angle range of the scanning module and is in the optimal area of ​​the X-ray and the detector channel, thereby making the accuracy of the scanning data of the region of interest collected by the detector, improving the image quality of the region of interest, and reducing the radiation exposure of other areas of the target object.

[0072] Based on the above embodiments, Figure 3 is a flow chart of another standing CT scanning control method provided by an embodiment of the present disclosure, such as Figure 3 As shown, when executing step S120, the standing CT scanning control method further includes:

[0073] S121. Determine radial length information of the region of interest along the XOY section according to the scanned positioning image.

[0074] After the scanning positioning image is acquired in step S110 , the scanning mode of the CT scanning system can be determined by determining the radial length information of the region of interest along the XOY section.

[0075] S122 . Determine a scanning mode of the scanning module according to a relationship between radial length information of the region of interest along the XOY section and preset radial length information.

[0076] In a specific implementation, the scanning mode of the scanning module is determined according to the relationship between the radial length information of the region of interest along the XOY section and the preset radial length information, including: obtaining the maximum radial length information of the region of interest along the XOY section; when the maximum radial length information of the region of interest along the XOY section is greater than or equal to the preset radial length information, determining that the scanning module is in the standard scanning mode; when the maximum radial length information of the region of interest along the XOY section is less than the preset radial length information, determining that the scanning module is in the small FOV scanning mode.

[0077] The preset radial length information is the maximum width information of the ray sector generated by the X-ray emitted by the tube passing through the collimator in the small FOV scanning mode.

[0078] By comparing the relationship between the maximum radial length information of the region of interest along the XOY section and the preset radial length information, the scanning mode of the scanning module is determined. If the maximum radial length information of the region of interest along the XOY section is greater than or equal to the preset radial length information, the scanning module is determined to be in the standard scanning mode; when the maximum radial length information of the region of interest along the XOY section is less than the preset radial length information, the scanning module is determined to be in the small FOV scanning mode. When determining that the scanning module is in the small FOV scanning mode, it is necessary to output a second control instruction to the second driving module according to the maximum radial length information of the region of interest along the XOY section, so as to drive the collimator to move through the second driving module, so that the width information of the ray sector generated by the X-ray emitted by the tube through the collimator is the same as the maximum radial length information of the region of interest along the XOY section.

[0079] In a specific embodiment, in combination with Figure 2B , the collimator includes a left collimation blade and a right collimation blade.

[0080] When the maximum radial length information of the region of interest along the XOY section is greater than the width information of the ray sector generated by the X-ray emitted by the tube through the collimator, output a third sub-control instruction to the second driving module, so as to drive the left collimator blade to move along the X-axis direction away from the center of the scanning module through the second driving module, and drive the right collimator blade to move along the X-axis direction away from the center of the scanning module through the second driving module;

[0081] When the maximum radial length information of the region of interest along the XOY section is less than the width information of the ray sector generated by the X-ray emitted by the tube through the collimator, a third sub-control instruction is output to the second driving module to drive the left collimation blade to move along the X-axis toward the center direction of the scanning module through the second driving module, and drive the right collimation blade to move along the X-axis toward the center direction of the scanning module through the second driving module.

[0082] Specifically, the two collimating blades (left collimating blade and right collimating blade) included in the collimator can move along the X-axis direction. When the two collimating blades are close to each other along the X-axis, the range of the ray sector formed by the X-rays passing through the two collimating blades is reduced. When the two collimating blades are far away from each other along the X-axis, the range of the ray sector formed by the X-rays passing through the two collimating blades is increased. After confirming that the scanning module is suitable for the small FOV scanning mode, by outputting a second control instruction to the second driving module, based on the relative distance between the two collimating blades of the collimator driven by the second driving module, the size of the ray sector generated by the X-rays on the scanning bed is dynamically modulated to ensure that the boundary of the ray sector generated by the X-rays on the scanning bed is closely fitted to the cross section of the region of interest (that is, the width information of the ray sector generated by the X-rays emitted by the tube through the collimator is the same as the maximum radial length information of the region of interest along the XOY cross section), thereby minimizing the radiation exposure of the non-interested region.

[0083] It should be noted that the vertical projection of the ray sector generated by the X-ray emitted by the tube through the collimator on the scanning bed is circular. Therefore, the width information of the ray sector generated by the X-ray emitted by the tube through the collimator is also the diameter of the vertical projection of the ray sector generated by the X-ray emitted by the tube through the collimator on the scanning bed. The relative distance between the two collimating blades of the collimator driven by the second driving module makes the diameter of the vertical projection of the ray sector generated by the X-ray emitted by the tube through the collimator on the scanning bed the same as the maximum radial length information of the region of interest along the XOY section. This can minimize the radiation exposure of the non-interest region on the basis of ensuring that the lesion region of the target object (that is, the region of interest) is within the scanning sector angle range of the scanning module.

[0084] Furthermore, in the above embodiment, the adjustment of the width of the two collimating blades of the collimator can be combined with Figure 2BThe distance between the two collimating leaves of the collimator, the maximum radial length information of the region of interest along the XOY section and the two sides of the ray sector form a pair of similar triangles. According to the principle of similar triangles, the personalized collimator width can be calculated for any region of interest, so as to achieve adaptive reduction of CT radiation in the scanning area while ensuring the image quality of the region of interest and the small FOV scanning mode.

[0085] During the implementation of this embodiment, the standing CT scanning system also includes a second driving module, which drives the collimator to move along the X-axis direction. The second driving module drives the collimator to move along the X-axis direction, so that the width information of the ray sector generated by the X-ray emitted by the tube passing through the collimator is the same as the maximum radial length information of the region of interest along the XOY section, thereby ensuring that the ray can penetrate the region of interest without omission, ensuring the image quality of the region of interest, and reducing the radiation exposure of other areas of the target object.

[0086] On the basis of the above-mentioned embodiments, the standing CT scanning control method provided in the embodiments of the present disclosure further includes: outputting a third control instruction to the tube so that the tube emits X-rays.

[0087] When the scanning module is determined to be in the standard scanning mode according to the relationship between the maximum radial length information of the region of interest along the XOY section and the preset radial length information, after executing step S130, a third control instruction is output to the tube so that the tube emits X-rays, thereby realizing scanning of the region of interest of the target object; when the scanning module is determined to be in the small FOV scanning mode according to the relationship between the maximum radial length information of the region of interest along the XOY section and the preset radial length information, firstly, a second control instruction is output to the second driving module according to the maximum radial length information of the region of interest along the XOY section, so as to drive the collimator to move through the second driving module, so that the width information of the ray sector generated by the X-ray emitted by the tube through the collimator is the same as the maximum radial length information of the region of interest along the XOY section, and then step S130 is executed. After executing step S130, a third control instruction is output to the tube so that the tube emits X-rays, thereby realizing scanning of the region of interest of the target object.

[0088] On the basis of the above embodiments, the present disclosure further provides a standing CT scanning control device. The standing CT scanning control device provided by the present disclosure is applied to a CT scanning system. The CT scanning system includes a scanning module, a supporting module and a first driving module. Figure 4 As shown, the standing CT scanning control device comprises:

[0089] Scanning positioning image acquisition module 410, used to acquire a scanning positioning image of the target object.

[0090] The center position information determination module 420 is used to determine the center position information of the region of interest according to the scanned positioning image.

[0091] The control module 430 is used to output a first control instruction to the first driving module based on the relationship between the center position information of the area of ​​interest and the preset center position information of the scanning module, so as to drive the support module to move through the first driving module, so that the center position information of the area of ​​interest of the target object standing on the support module is the same as the preset center position information of the scanning module.

[0092] The standing CT scanning control device provided by the embodiment of the present disclosure first acquires the scanning positioning image of the target object; then determines the center position information of the region of interest according to the scanning positioning image; finally, according to the relationship between the center position information of the region of interest and the preset center position information of the scanning module, outputs a first control instruction to the first driving module, so as to drive the support module to move through the first driving module, so that the center position information of the region of interest of the target object standing on the support module is the same as the preset center position information of the scanning module. That is, in the CT scanning control method provided by the embodiment of the present disclosure, the center position information of the region of interest of the target object is adjusted based on the preset center position information of the scanning module, so that the center position information of the region of interest of the target object is the same as the preset center position information of the scanning module, ensuring that the lesion area (that is, the region of interest) of the target object is located within the scanning fan angle range of the scanning module and is in the optimal area of ​​the X-ray and the detector channel, thereby making the accuracy of the scanning data of the region of interest collected by the detector, improving the image quality of the region of interest, and reducing the radiation exposure of other regions of the target object.

[0093] In some embodiments of the present disclosure, the center position information of the region of interest includes X-axis position information and Y-axis position information, and the driving module includes a first driving unit and a second driving unit;

[0094] Outputting a first control instruction to a first driving module according to a relationship between the center position information of the region of interest and the preset center position information of the scanning module comprises:

[0095] Outputting a first sub-control instruction to a first driving unit according to the X-axis position information of the region of interest and the preset X-axis position information of the scanning module, so as to drive the supporting module to move along the X-axis direction through the first driving unit;

[0096] According to the Y-axis position information of the region of interest and the preset Y-axis position information of the scanning module, a second sub-control instruction is output to the second driving unit, so as to drive the supporting module to move along the Y-axis direction through the second driving unit.

[0097] In some embodiments of the present disclosure, when determining the center position information of the region of interest according to the scanned positioning image, the method further includes:

[0098] Determining radial length information of the region of interest along an XOY cross section according to the scanning positioning image;

[0099] The scanning mode of the scanning module is determined according to the relationship between the radial length information of the region of interest along the XOY section and the preset radial length information.

[0100] In some embodiments of the present disclosure, determining the scanning mode of the scanning module according to the relationship between the radial length information of the region of interest along the XOY section and the preset radial length information includes:

[0101] Obtaining the maximum radial length information of the region of interest along the XOY section;

[0102] When the maximum radial length information of the region of interest along the XOY cross section is greater than or equal to the preset radial length information, determining that the scanning module is in the standard scanning mode;

[0103] When the maximum radial length information of the region of interest along the XOY section is less than the preset radial length information, it is determined that the scanning module is in the small FOV scanning mode.

[0104] In some embodiments of the present disclosure, the CT scanning system further includes a second driving module, the scanning module includes at least a tube and a collimator, and the method further includes:

[0105] When the scanning module is in the small FOV scanning mode, a second control instruction is output to the second driving module according to the maximum radial length information of the region of interest along the XOY section, so as to drive the collimator to move through the second driving module, so that the width information of the ray sector generated by the X-ray emitted by the tube through the collimator is the same as the maximum radial length information of the region of interest along the XOY section.

[0106] In some embodiments of the present disclosure, the collimator includes a left collimation blade and a right collimation blade;

[0107] Outputting a second control instruction to a second driving module according to the maximum radial length information of the region of interest along the XOY section, so as to drive the collimator to move through the second driving module, comprises:

[0108] When the maximum radial length information of the region of interest along the XOY section is greater than the width information of the ray sector generated by the X-ray emitted by the tube through the collimator, outputting a third sub-control instruction to the second driving module, so as to drive the left collimator blade to move along the X-axis direction away from the center of the scanning module through the second driving module, and drive the right collimator blade to move along the X-axis direction away from the center of the scanning module through the second driving module;

[0109] When the maximum radial length information of the region of interest along the XOY section is less than the width information of the ray sector generated by the X-ray emitted by the tube through the collimator, a third sub-control instruction is output to the second driving module to drive the left collimation blade to move along the X-axis toward the center direction of the scanning module through the second driving module, and to drive the right collimation blade to move along the X-axis toward the center direction of the scanning module through the second driving module.

[0110] In some embodiments of the present disclosure, it also includes:

[0111] Output a third control instruction to the tube to enable the tube to emit X-rays.

[0112] The present application also provides a computer device. Figure 5 , Figure 5 This is a basic structural block diagram of the computer device in this embodiment.

[0113] The computer device includes a memory 510 and a processor 520 that are connected to each other through a system bus. It should be noted that the figure only shows a computer device with components 510-520, but it should be understood that it is not required to implement all the components shown, and more or fewer components can be implemented instead. Among them, those skilled in the art can understand that the computer device here is a device that can automatically perform numerical calculations and / or information processing according to pre-set or stored instructions, and its hardware includes but is not limited to microprocessors, application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA), digital processors (Digital Signal Processor, DSP), embedded devices, etc.

[0114] Computer devices can be computing devices such as desktop computers, notebooks, PDAs, and cloud servers. Computer devices can interact with users through keyboards, mice, remote controls, touch pads, or voice control devices.

[0115] The memory 510 includes at least one type of readable storage medium, and the readable storage medium includes a non-volatile memory or a volatile memory, such as a flash memory, a hard disk, a multimedia card, a card-type memory (such as an SD or DX memory, etc.), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, etc., and the RAM may include a static RAM or a dynamic RAM. In some embodiments, the memory 510 may be an internal storage unit of a computer device, such as a hard disk or a memory of the computer device. In other embodiments, the memory 510 may also be an external storage device of a computer device, such as a plug-in hard disk, a smart memory card (SMC), a secure digital (SD) card, or a flash card (Flash Card), etc., equipped on the computer device. Of course, the memory 510 may also include both an internal storage unit of the computer device and an external storage device thereof. In this embodiment, the memory 510 is generally used to store an operating system and various application software installed on the computer device, such as the program code of the above method, etc. In addition, the memory 510 may also be used to temporarily store various data that have been output or are to be output.

[0116] The processor 520 is generally used to perform the overall operation of the computer device. In this embodiment, the memory 510 is used to store program codes or instructions, the program code includes computer operation instructions, and the processor 520 is used to execute the program codes or instructions stored in the memory 510 or process data, such as running the program code of the above method.

[0117] In this article, the bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus system can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0118] Another embodiment of the present application also provides a computer-readable medium, which may be a computer-readable signal medium or a computer-readable medium. A processor in a computer reads a computer-readable program code stored in the computer-readable medium, so that the processor can execute the functional actions specified in each step or a combination of steps in the above method; and generate a device for implementing the functional actions specified in each block or a combination of blocks in the block diagram.

[0119] Computer-readable media include but are not limited to electronic, magnetic, optical, electromagnetic, infrared memory or semiconductor systems, devices or apparatuses, or any appropriate combination of the foregoing, the memory is used to store program codes or instructions, the program codes include computer operating instructions, and the processor is used to execute the program codes or instructions of the above methods stored in the memory.

[0120] For the definitions of memory and processor, please refer to the description of the aforementioned computer device embodiment and will not be repeated here.

[0121] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0122] Each functional unit or module in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0123] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., and other media that can store program codes.

[0124] Unless the context clearly indicates otherwise, the singular form of the words used herein and in the appended claims includes the plural and vice versa. Thus, when referring to the singular, the plural form of the corresponding term is generally included. Similarly, the words "comprise" and "include" are to be interpreted as inclusive rather than exclusive. Likewise, the terms "include" and "or" should be interpreted as inclusive unless such interpretation is expressly prohibited herein. Where the term "example" is used herein, particularly when it is located after a group of terms, the "example" is merely exemplary and illustrative and should not be considered exclusive or comprehensive.

[0125] Further aspects and scopes of adaptability become apparent from the description provided herein. It should be understood that various aspects of the present application can be implemented individually or in combination with one or more other aspects. It should also be understood that the description and specific embodiments herein are intended for purposes of illustration only and are not intended to limit the scope of the present application.

[0126] Several embodiments of the present disclosure are described in detail above, but it is obvious that those skilled in the art can make various modifications and variations to the embodiments of the present disclosure without departing from the spirit and scope of the present disclosure. The protection scope of the present disclosure is defined by the attached claims.

Claims

1. A standing CT scanning control method is applied to a CT scanning system, wherein the CT scanning system comprises a scanning module, a supporting module, a first driving module and a second driving module, wherein the scanning module comprises a tube and a collimator, and wherein: include: Acquire a scanning positioning image of the target object; Determining the center position information of the region of interest according to the scanning positioning image; Outputting a first control instruction to a first driving module according to a relationship between the center position information of the region of interest and the preset center position information of the scanning module, so as to drive the support module to move through the first driving module, so that the center position information of the region of interest of the target object standing on the support module is the same as the preset center position information of the scanning module; The method further comprises: Determining radial length information of the region of interest along an XOY cross section according to the scanning positioning image; Obtaining the maximum radial length information of the region of interest along the XOY section; When the maximum radial length information of the region of interest along the XOY cross section is less than the preset radial length information, determining that the scanning module is in a small FOV scanning mode; When the scanning module is in the small FOV scanning mode, a second control instruction is output to the second driving module according to the maximum radial length information of the region of interest along the XOY section, so as to drive the collimator to move through the second driving module, so that the width information of the ray sector generated by the X-ray emitted by the tube through the collimator is the same as the maximum radial length information of the region of interest along the XOY section.

2. The method according to claim 1, characterized in that The center position information of the region of interest includes X-axis position information and Y-axis position information, and the driving module includes a first driving unit and a second driving unit; The step of outputting a first control instruction to a first driving module according to a relationship between the central position information of the region of interest and the preset central position information of the scanning module comprises: Outputting a first sub-control instruction to a first driving unit according to the X-axis position information of the region of interest and the preset X-axis position information of the scanning module, so as to drive the supporting module to move along the X-axis direction through the first driving unit; According to the Y-axis position information of the region of interest and the preset Y-axis position information of the scanning module, a second sub-control instruction is output to the second driving unit to drive the supporting module to move along the Y-axis direction through the second driving unit.

3. The method according to claim 1, characterized in that The collimator comprises a left collimating blade and a right collimating blade; Outputting a second control instruction to a second driving module according to the maximum radial length information of the region of interest along the XOY section, so as to drive the collimator to move through the second driving module, comprises: When the maximum radial length information of the region of interest along the XOY section is greater than the width information of the ray sector generated by the X-ray emitted by the tube through the collimator, outputting a third sub-control instruction to the second driving module, so as to drive the left collimator blade to move along the X-axis direction away from the center of the scanning module through the second driving module, and drive the right collimator blade to move along the X-axis direction away from the center of the scanning module through the second driving module; When the maximum radial length information of the region of interest along the XOY section is less than the width information of the ray sector generated by the X-ray emitted by the tube through the collimator, a fourth sub-control instruction is output to the second driving module to drive the left collimation blade to move along the X-axis toward the center direction of the scanning module through the second driving module, and to drive the right collimation blade to move along the X-axis toward the center direction of the scanning module through the second driving module.

4. The method according to claim 1, characterized in that: The method further comprises: Output a third control instruction to the tube to enable the tube to emit X-rays.

5. A standing CT scanning control device, applied to a CT scanning system, wherein the CT scanning system comprises a scanning module, a supporting module, a first driving module and a second driving module, wherein the scanning module comprises a tube and a collimator, and wherein: include: A scanning positioning image acquisition module is used to acquire a scanning positioning image of a target object; A center position information determination module, used to determine the center position information of the region of interest based on the scanned positioning image; a control module, configured to output a first control instruction to a first driving module according to a relationship between the center position information of the region of interest and the preset center position information of the scanning module, so as to drive the support module to move through the first driving module, so that the center position information of the region of interest of the target object standing on the support module is the same as the preset center position information of the scanning module; The standing CT scanning control device is also used for: Determining radial length information of the region of interest along an XOY cross section according to the scanning positioning image; Obtaining the maximum radial length information of the region of interest along the XOY section; When the maximum radial length information of the region of interest along the XOY cross section is less than the preset radial length information, determining that the scanning module is in a small FOV scanning mode; When the scanning module is in the small FOV scanning mode, a second control instruction is output to the second driving module according to the maximum radial length information of the region of interest along the XOY section, so as to drive the collimator to move through the second driving module, so that the width information of the ray sector generated by the X-ray emitted by the tube through the collimator is the same as the maximum radial length information of the region of interest along the XOY section.

6. A computer device, characterized in that: include: one or more processors; a storage device for storing one or more programs, When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1 to 4.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 4 is implemented.

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