Patient body position monitoring method in nuclear medicine image scanning and related device

Abstract

The invention provides a patient body position monitoring method in nuclear medicine image scanning and a related device, and relates to the technical field of software, in the nuclear medicine image scanning process, a body position image of a patient is shot through an image acquisition device, and the shooting range of the image acquisition device can cover the detection range of the nuclear medicine image scanning device; the actual body position of the patient is determined by conducting feature recognition on the body position image; a standard body position is obtained, and feedback adjustment is conducted according to the comparison result of the actual body position and the standard body position. The body position of the patient can be monitored in the nuclear medicine image scanning process, feedback adjustment is carried out with the standard body position as the standard, and therefore it is ensured that a high-quality medical image under the standard body position is obtained, and the scanning quality and accuracy are improved.

Description

Technical Field

[0001] The present application relates to the field of software technology, and in particular to a method and related device for monitoring patient position in nuclear medicine imaging scanning. Background Art

[0002] When nuclear medicine imaging equipment (such as SPECT, PET, etc.) is scanning, changes in the patient's body position will have a direct impact on the quality of the image. Incorrect body position may cause blurred images, thereby affecting the accuracy of the diagnostic results.

[0003] Although medical staff will guide patients to take the appropriate standard posture before scanning, patients may move slightly during the scanning process due to discomfort, breathing or other factors. In this regard, the current solution mainly relies on post-image reconstruction technology and manual intervention, which makes the scanning inefficient and uneconomical. Summary of the invention

[0004] In view of the above problems, the present application provides a method and related device for monitoring the patient's body position during nuclear medicine imaging scanning, so as to accurately monitor the patient's body position during nuclear medicine imaging scanning and achieve the purpose of enhancing the patient's safety during the scanning process. The specific scheme is as follows:

[0005] A first aspect of the present application provides a method for monitoring the body position of a patient during nuclear medicine imaging scanning, the method comprising:

[0006] During the nuclear medicine imaging scan, the patient's body position image is captured by an image acquisition device, and the shooting range of the image acquisition device can cover the detection range of the nuclear medicine imaging scan device;

[0007] Determining the actual body position of the patient by performing feature recognition on the body position image;

[0008] A standard body position is obtained, and feedback adjustment is performed according to a comparison result between the actual body position and the standard body position.

[0009] In a possible implementation, determining the actual body position of the patient by performing feature recognition on the body position image includes:

[0010] Performing coordinate transformation on the body image to obtain three-dimensional data of the body image in the three-dimensional space;

[0011] Acquiring modeling data of a scanning bed in the nuclear medicine imaging scanning device in the three-dimensional space;

[0012] Separating the target three-dimensional data higher than the scanning bed from the three-dimensional data based on the modeling data;

[0013] Features in the target three-dimensional data are identified to determine the actual body position.

[0014] In a possible implementation, the body position image includes a two-dimensional image and a depth image, and the identifying features in the target three-dimensional data to determine the actual body position includes:

[0015] Performing edge detection on the target three-dimensional data to obtain a human body contour, and determining the actual body position according to the human body contour; or,

[0016] The human body key points in the target three-dimensional data are detected through a deep learning model, and the actual body position is determined based on the human body key points.

[0017] In a possible implementation, the method for monitoring patient position in nuclear medicine imaging scanning further includes:

[0018] Performing axial projection on the human body contour to obtain a projection image, and converting the projection image into a physical resolution space;

[0019] The conversion result of the projection image is displayed and compared with the medical image of the nuclear medicine imaging scanning device.

[0020] In a possible implementation, the method for monitoring patient position in nuclear medicine imaging scanning further includes:

[0021] Acquiring a scanning range of a relatively moving component in the nuclear medicine imaging scanning device;

[0022] The scanning range is used to perform interference judgment on the conversion result of the projection image to determine whether there is a risk of collision between the patient and the relatively moving component.

[0023] In a possible implementation, the body position image includes a three-dimensional point cloud image, and identifying features in the target three-dimensional data to determine the actual body position includes:

[0024] The three-dimensional feature points in the target three-dimensional data are obtained by three-dimensional feature extraction technology, and the actual body position is determined according to the three-dimensional feature points.

[0025] In a possible implementation, the performing feedback adjustment according to the comparison result between the actual body position and the standard body position includes:

[0026] When the actual body position is different from the standard body position, prompt information is output to the patient, or scanning parameters of the nuclear medicine imaging scanning device are adjusted.

[0027] In a possible implementation, the method for monitoring patient position in nuclear medicine imaging scanning further includes:

[0028] The actual body position is tracked to determine the patient's movement.

[0029] In a possible implementation, the method for monitoring patient position in nuclear medicine imaging scanning further includes:

[0030] The actual body position and the corresponding feedback adjustment result are recorded.

[0031] A second aspect of the present application provides a patient position monitoring device in nuclear medicine imaging scanning, the patient position monitoring device in nuclear medicine imaging scanning comprising:

[0032] An image capturing module is used to capture a patient's body position image by an image acquisition device during a nuclear medicine image scanning process, wherein the capturing range of the image acquisition device can cover the detection range of the nuclear medicine image scanning device;

[0033] A body position determination module, used to determine the actual body position of the patient by performing feature recognition on the body position image;

[0034] The feedback adjustment module is used to obtain the standard body position and perform feedback adjustment according to the comparison result between the actual body position and the standard body position.

[0035] The third aspect of the present application provides a computer program product, including computer-readable instructions. When the computer-readable instructions are executed on an electronic device, the electronic device implements the method for monitoring patient position in nuclear medicine imaging scanning according to the first aspect or any implementation method of the first aspect.

[0036] A fourth aspect of the present application provides an electronic device, comprising at least one processor and a memory connected to the processor, wherein:

[0037] The memory is used to store computer programs;

[0038] The processor is used to execute the computer program so that the electronic device can implement the method for monitoring patient position in nuclear medicine imaging scanning according to the first aspect or any implementation manner of the first aspect.

[0039] A fifth aspect of the present application provides a computer storage medium, which carries one or more computer programs. When the one or more computer programs are executed by an electronic device, the electronic device can implement the method for monitoring the patient position in nuclear medicine imaging scanning according to the first aspect or any implementation of the first aspect.

[0040] By means of the above technical scheme, the present application provides a method and related device for monitoring the patient's body position in nuclear medicine imaging scanning. During the nuclear medicine imaging scanning process, the patient's body position image is captured by an image acquisition device, and the shooting range of the image acquisition device can cover the detection range of the nuclear medicine imaging scanning device; the actual body position of the patient is determined by feature recognition of the body position image; the standard body position is obtained, and feedback adjustment is performed based on the comparison result between the actual body position and the standard body position. The present application can monitor the patient's body position during the nuclear medicine imaging scanning process, and then perform feedback adjustment based on the standard body position, thereby ensuring the acquisition of high-quality medical images in the standard body position and improving the scanning quality and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the originals and elements are not necessarily drawn to scale.

[0042] Figure 1 A schematic flow chart of a method for monitoring patient position in nuclear medicine imaging scanning provided in an embodiment of the present application;

[0043] Figure 2 A schematic diagram of the deployment of an image acquisition device provided in an embodiment of the present application;

[0044] Figure 3 A partial flow chart of a method for monitoring patient position in nuclear medicine imaging scanning provided in an embodiment of the present application;

[0045] Figure 4 An example diagram of display comparison of a medical image and a projection image provided in an embodiment of the present application;

[0046] Figure 5 A schematic diagram of the structure of a patient position monitoring device in nuclear medicine imaging scanning provided by an embodiment of the present application;

[0047] Figure 6 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0048] The following describes the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. The terms used in the implementation method section of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application.

[0049] The embodiments of the present application are described below in conjunction with the accompanying drawings. Those skilled in the art will appreciate that, with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0050] The terms "first", "second" etc. in the specification of the application and the above-mentioned drawings are used to distinguish similar objects, and need not be used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable in appropriate circumstances, and this is only to describe the distinction mode adopted by the objects of the same attributes when describing in the embodiments of the application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0051] To ensure that the patient is in a suitable position for nuclear medicine imaging scanning, the scanning position of different devices and at different times is kept highly consistent, effectively reducing the risk of motion collision. The embodiment of the present application provides a method for monitoring the patient's position in nuclear medicine imaging scanning. The method for monitoring the patient's position in nuclear medicine imaging scanning in the embodiment of the present application is described in detail below in conjunction with the accompanying drawings.

[0052] See also Figure 1 , Figure 1 The present invention provides a flow chart of a method for monitoring the patient's body position in nuclear medicine imaging scanning. Figure 1 As shown, a method for monitoring patient position in nuclear medicine imaging scanning provided by an embodiment of the present application may include steps S10 to S30, and these steps are described in detail below.

[0053] S10, during the nuclear medicine imaging scanning process, a body position image of the patient is captured by an image acquisition device, and the capturing range of the image acquisition device can cover the detection range of the nuclear medicine imaging scanning device.

[0054] In an embodiment of the present application, before a nuclear medicine image scan, a certain number of image acquisition devices are deployed at the nuclear medicine image scanning device and the site where it is located. The image acquisition devices can be distributed at different positions of the nuclear medicine image scanning device and the site where it is located. By means of a multi-perspective calibration combination, the detector and the detection outer ring occlusion of the nuclear medicine image scanning device can be crossed, and real-time status photography of the patient's entire body including the area entering the detector can be performed.

[0055] See also Figure 2 , Figure 2 A schematic diagram of the deployment of an image acquisition device provided in an embodiment of the present application. Figure 2As shown, the nuclear medicine imaging scanning equipment and the site where it is located are deployed with three image acquisition devices (i.e., image acquisition device A, image acquisition device B, and image acquisition device C) at intervals of 45°, forming a semi-surrounding of the human body. The overall shooting range of the three image acquisition devices can cover the detection range of the nuclear medicine imaging scanning equipment for the patient. For example, the entire upper surface of the human body can be captured by semi-surrounding the human body. Of course, in actual applications, the number and position of image acquisition devices can be specifically deployed according to factors such as the type of nuclear medicine imaging scanning equipment and the size of the site. Through the multi-viewing angle combination of multiple image acquisition devices, the present application can be applied to different nuclear medicine imaging scanning equipment.

[0056] During the nuclear medicine imaging scan, the deployed image acquisition equipment can capture the patient's body position images in all directions.

[0057] S20, determining the actual body position of the patient by performing feature recognition on the body position image.

[0058] In an embodiment of the present application, a computing platform based on a computer vision algorithm or a deep learning model can identify human body features in the captured body position images to determine the actual body position of the patient.

[0059] In a possible implementation, the body image is preprocessed to separate the human body area, thereby reducing the amount of calculation and achieving real-time data processing. Figure 3 , Figure 3 A partial flow chart of a method for monitoring patient position in nuclear medicine imaging scans provided in an embodiment of the present application. Figure 3 As shown, an embodiment of the present application provides a method for monitoring the patient's body position in nuclear medicine imaging scanning, wherein step S20 "determines the patient's actual body position by performing feature recognition on the body position image" may include steps S201 to S204, and these steps are described in detail below.

[0060] S201, coordinate transformation is performed on the body image to obtain three-dimensional data of the body image in a three-dimensional space.

[0061] In the embodiment of the present application, the body image comes from a data acquisition device, so the pixels in the body image are located in a camera coordinate system. To this end, the body image can be subjected to coordinate transformation, and the pixels in the body image are transformed from the camera coordinate system to a three-dimensional world coordinate system. The origin of the world coordinate system is located on the ground and is the nearest corner of the smallest circumscribed cube of the entire nuclear medicine imaging scanning device (including the scanning bed).

[0062] In this regard, the pixel points of the body image can be converted into three-dimensional space through the conversion from the camera coordinate system to the world coordinate system, so as to obtain three-dimensional data.

[0063] S202, obtaining modeling data of a scanning bed in a nuclear medicine imaging scanning device in a three-dimensional space.

[0064] In the embodiment of the present application, a nuclear medicine imaging scanning device can be connected to obtain the height of the scanning bed, and by modeling the scanning bed, the modeling data of the scanning bed in the world coordinate system of the three-dimensional space can be obtained. Through the modeling data, it can be determined that the patient may appear in a fixed three-dimensional space on the scanning bed, thereby reducing the amount of calculation.

[0065] S203, separating the target three-dimensional data higher than the scanning bed from the three-dimensional data based on the modeling data.

[0066] In the embodiment of the present application, since the field of view of the image acquisition device is relatively fixed, a fixed threshold method can be used to retain the data in the three-dimensional data that is higher than the scanning bed from the ground, and delete all the data that is lower than the scanning bed. Therefore, by using the spatial position relationship between the image acquisition device and the scanning bed, the target three-dimensional data that is higher than the scanning bed can be separated from the three-dimensional data based on the modeling data, and the target three-dimensional data is located in a fixed three-dimensional space where the patient may appear on the scanning bed, thereby reducing the interference of other factors.

[0067] S204, identifying features in the target three-dimensional data to determine the actual body position.

[0068] In the embodiment of the present application, for the target three-dimensional data, the patient's current body position, that is, the actual body position, is determined by identifying the human body features therein.

[0069] In a possible implementation, the image acquisition device may include a visible light camera and a depth camera. For this, the body position image includes a two-dimensional image and a depth image, and the three-dimensional data is composed of the two-dimensional data of the two-dimensional image and the depth data of the depth image. For this, in the embodiment of the present application, step S204 "identifying features in the target three-dimensional data to determine the actual body position" may adopt the following steps:

[0070] Perform edge detection on the target three-dimensional data to obtain the human body contour, and determine the actual body position based on the human body contour; or,

[0071] The deep learning model is used to detect the key points of the human body in the target three-dimensional data, and the actual body position is determined based on the key points of the human body.

[0072] In an embodiment of the present application, for the target three-dimensional data composed of two-dimensional data and depth data, a classic edge detection algorithm (such as the Canny operator) can be used to perform edge detection to extract the patient's body contour, and the patient's actual position can be determined based on the body contour.

[0073] In addition, for target three-dimensional data composed of two-dimensional data and depth data, a deep learning model can be used to detect key points of the human body, extract the two-dimensional position of the key points of the human body from the two-dimensional data, and then convert the two-dimensional position of the key points of the human body into a three-dimensional position based on the spatial correspondence between the two-dimensional data and the depth data. The actual position of the patient can be determined by the three-dimensional position of the key points of the human body.

[0074] On this basis, multimodal image correction can be performed on the human body contour. In this regard, a method for monitoring the patient's body position in medical image scanning provided by an embodiment of the present application also includes the following steps:

[0075] A projection image is obtained by axially projecting the human body contour, and the projection image is converted into a physical resolution space; the conversion result of the projection image is displayed and compared with the medical image of the nuclear medicine imaging scanning device.

[0076] In the embodiment of the present application, the human body contour can be projected axially to obtain a projection image similar to a CT tomographic image, which contains the patient's axial contour information. The medical image output by the nuclear medicine imaging scanning device is located in the physical resolution space. The projection image has a different resolution from the medical image before conversion. Therefore, by converting the projection image to the physical resolution space of the nuclear medicine imaging scanning device, the resolution of the projection image and the medical image can be unified. In this regard, the conversion result of the projection image can be fused and displayed with the medical image, so that the patient's multiple scanning positions maintain a very high consistency. See Figure 4 , Figure 4 This is an example diagram of a display comparison of a medical image and a projection image provided in an embodiment of the present application. Figure 4 As shown, the images from left to right respectively represent an instance of a medical image, a contour processing result of the medical image, and a display comparison result between the medical image and the projection image.

[0077] In addition, in order to enable the patient to reach the appropriate scanning position or meet specific scanning requirements, the scanning bed, the frame, and the detector need to move relative to each other during the scanning process, which increases the risk of collision between the patient and the relatively moving parts. In this regard, a method for monitoring the patient's body position during nuclear medicine imaging scanning provided in an embodiment of the present application also includes the following steps:

[0078] Obtain the scanning range of the relatively moving parts in the nuclear medicine imaging scanning equipment; use the scanning range to perform interference judgment on the conversion results of the projection image to determine whether there is a risk of collision between the patient and the relatively moving parts.

[0079] In the embodiment of the present application, the scanning range of the nuclear medicine imaging scanning device can be determined according to the physical position of the relatively moving part, and the relative distance between the patient and the relatively moving part can be determined by comparing the scanning range with the conversion result of the projection image. If the relative distance between the patient and the relatively moving part is less than the safe distance, it is determined that there is a risk of collision between the patient and the relatively moving part, and then a collision prompt is given to reduce the safety risk of collision. Conversely, if the relative distance between the patient and the relatively moving part is greater than or equal to the safe distance, it is determined that there is no risk of collision between the patient and the relatively moving part.

[0080] In a possible implementation, the image acquisition device may include a point cloud camera, and the body position image includes a three-dimensional point cloud image, and the three-dimensional data is three-dimensional point cloud data. In this regard, in the embodiment of the present application, step S204 "identifying features in the target three-dimensional data to determine the actual body position" may adopt the following steps:

[0081] The three-dimensional feature points in the target three-dimensional data are obtained through three-dimensional feature extraction technology, and the actual body position is determined based on the three-dimensional feature points.

[0082] In an embodiment of the present application, for target three-dimensional data composed of three-dimensional point cloud data, three-dimensional feature extraction technologies such as SIFT-3D and Harris 3D can be used to extract three-dimensional feature points of the human body from the target three-dimensional data, and the actual position of the patient can be determined based on the three-dimensional feature points.

[0083] S30, obtaining a standard body position, and performing feedback adjustment according to a comparison result between the actual body position and the standard body position.

[0084] In the embodiment of the present application, a standard body position library may be established, and the standard body position confirmed by the medical staff in combination with the raised position and the extended position of the scanning bed may be stored in the standard body position library.

[0085] In this regard, the corresponding standard position can be queried in the standard position library according to the actual raised position and the actual extended position of the scanning bed. The standard position is compared with the actual position to determine whether the patient is in the correct position, and then real-time feedback is provided to the medical staff or the patient according to the comparison result. In the above step S30, "feedback adjustment is performed according to the comparison result between the actual position and the standard position", the following steps can be adopted:

[0086] When the actual body position is different from the standard body position, a prompt message is output to the patient, or the scanning parameters of the nuclear medicine imaging scanning device are adjusted.

[0087] In the embodiment of the present application, if the actual body position is different from the standard body position, a prompt message can be output to the patient to prompt the patient how to adjust the body position. In addition, the scanning parameters of the nuclear medicine imaging scanning device, such as the scanning angle, acquisition time, probe movement state, etc., can also be automatically adjusted to guide the nuclear medicine imaging scanning device to move it into place, adapt to the patient's body position changes, or pause the scan to wait for the patient to return to the standard body position. In addition, the body position image of the previous scan can be used as a guide, and the medical image of the previous scan (such as SPECT / PET / CT tomographic image) can also be used for guidance, so that the patient's scanning position tends to be consistent in different devices and at different times.

[0088] In one possible implementation, in certain types of medical examinations (such as SPECT for heart or brain scans), by tracking the patient's movements and recording the patient's detailed body position, precise control parameters can be provided for the image reconstruction algorithm and the scanning process of the equipment to help generate more accurate three-dimensional images. In this regard, a method for monitoring the patient's body position in nuclear medicine imaging scanning provided in an embodiment of the present application also includes the following steps:

[0089] Actual body position is tracked to determine patient movement.

[0090] In an embodiment of the present application, the patient's movement condition can be determined by tracking the patient's actual body position. Taking three-dimensional point cloud data as an example, a nearest neighbor search algorithm can be used to match three-dimensional feature points, and the paired three-dimensional feature points can be used as the basis for monitoring the patient's movement.

[0091] In a possible implementation, the body position and related adjustments of the nuclear medicine imaging scan can also be recorded for quality control and future parameters. In this regard, the embodiment of the present application provides a method for monitoring the patient's body position in nuclear medicine imaging scanning, which also includes the following steps:

[0092] Record the actual body position and its corresponding feedback adjustment results.

[0093] Through the above description, the embodiment of the present application provides a method for monitoring the patient's position in nuclear medicine imaging scanning, which can realize dynamic and real-time patient position recognition, monitoring and adjustment in the process of nuclear medicine imaging scanning, effectively improve the image quality and diagnostic accuracy, reduce the need for repeated scanning, improve patient experience and medical efficiency, and reduce the safety risks caused by the relative movement of equipment. In addition, it can be further integrated with the hospital information system (HIS) and the image storage and transmission system (PACS) to optimize the overall management and use of medical resources.

[0094] A method for monitoring the body position of a patient in nuclear medicine imaging scanning provided by an embodiment of the present application is introduced above. A device for executing the above method for monitoring the body position of a patient in nuclear medicine imaging scanning will be introduced below.

[0095] See also Figure 5 , Figure 5 This is a schematic diagram of the structure of a patient position monitoring device in nuclear medicine imaging scanning provided by an embodiment of the present application. Figure 5 As shown, an embodiment of the present application provides a patient position monitoring device in nuclear medicine imaging scanning, comprising:

[0096] The image capturing module 10 is used to capture the patient's body position image by an image acquisition device during the nuclear medicine imaging scanning process, and the capturing range of the image acquisition device can cover the detection range of the nuclear medicine imaging scanning device;

[0097] A body position determination module 20, used to determine the actual body position of the patient by performing feature recognition on the body position image;

[0098] The feedback adjustment module 30 is used to obtain the standard body position and perform feedback adjustment according to the comparison result between the actual body position and the standard body position.

[0099] In a possible implementation, the body position determination module 20 is specifically configured to:

[0100] Perform coordinate transformation on the body position image to obtain three-dimensional data of the body position image in three-dimensional space; obtain modeling data of the scanning bed in the nuclear medicine imaging scanning equipment in three-dimensional space; separate the target three-dimensional data higher than the scanning bed from the three-dimensional data based on the modeling data; identify the features in the target three-dimensional data to determine the actual body position.

[0101] In a possible implementation, the body position image includes a two-dimensional image and a depth image, and the body position determination module 20 used to identify features in the target three-dimensional data to determine the actual body position is specifically used to:

[0102] Perform edge detection on the target three-dimensional data to obtain the human body contour, and determine the actual body position based on the human body contour; or,

[0103] The deep learning model is used to detect the key points of the human body in the target three-dimensional data, and the actual body position is determined based on the key points of the human body.

[0104] In a possible implementation, the body position determination module 20 is further configured to:

[0105] A projection image is obtained by axially projecting the human body contour, and the projection image is converted into a physical resolution space; the conversion result of the projection image is displayed and compared with the medical image of the nuclear medicine imaging scanning device.

[0106] In a possible implementation, the body position determination module 20 is further configured to:

[0107] Obtain the scanning range of the relatively moving parts in the nuclear medicine imaging scanning equipment; use the scanning range to perform interference judgment on the conversion results of the projection image to determine whether there is a risk of collision between the patient and the relatively moving parts.

[0108] In a possible implementation, the body position image includes a three-dimensional point cloud image, and the body position determination module 20 used to identify features in the target three-dimensional data to determine the actual body position is specifically used to:

[0109] The three-dimensional feature points in the target three-dimensional data are obtained through three-dimensional feature extraction technology, and the actual body position is determined based on the three-dimensional feature points.

[0110] In a possible implementation, the feedback adjustment module 30 for performing feedback adjustment according to the comparison result between the actual body position and the standard body position is specifically used to:

[0111] When the actual body position is different from the standard body position, a prompt message is output to the patient, or the scanning parameters of the nuclear medicine imaging scanning device are adjusted.

[0112] In a possible implementation, the body position determination module 20 is further configured to:

[0113] Actual body position is tracked to determine patient movement.

[0114] In a possible implementation, the feedback adjustment module 30 is further configured to:

[0115] Record the actual body position and its corresponding feedback adjustment results.

[0116] It should be noted that the detailed functions of each module in the embodiment of the present application can be found in the corresponding disclosed part of the embodiment of the patient position monitoring method in nuclear medicine imaging scanning, which will not be repeated here.

[0117] The present application also provides an electronic device in an embodiment. Figure 6 , Figure 6 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device in the embodiment of the present application may include but is not limited to fixed terminals such as mobile phones, laptops, PDAs (personal digital assistants), PADs (tablet computers), desktop computers, etc. Figure 6 The electronic device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0118] like Figure 6As shown, the electronic device may include a processing device (e.g., a central processing unit, a graphics processing unit, etc.) 601, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 602 or a program loaded from a storage device 608 to a random access memory (RAM) 603. When the electronic device is powered on, various programs and data required for the operation of the electronic device are also stored in the RAM 603. The processing device 601, the ROM 602, and the RAM 603 are connected to each other via a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

[0119] Typically, the following devices may be connected to the I / O interface 605: an input device 606 including, for example, a touch screen, a touch pad, a keyboard, a mouse, a camera, a microphone, an accelerometer, a gyroscope, etc.; an output device 607 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage device 608 including, for example, a memory card, a hard disk, etc.; and a communication device 609. The communication device 609 may allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. Although Figure 6 An electronic device having various devices is shown, but it should be understood that it is not required to implement or possess all the devices shown. More or fewer devices may be implemented or possessed instead.

[0120] An embodiment of the present application also provides a computer program product, including computer-readable instructions. When the computer-readable instructions are executed on an electronic device, the electronic device implements any method for monitoring patient position in nuclear medicine imaging scanning provided in the embodiments of the present application.

[0121] A computer-readable storage medium is also provided in an embodiment of the present application. The storage medium carries one or more computer programs. When the one or more computer programs are executed by an electronic device, the electronic device can implement any one of the patient position monitoring methods in nuclear medicine imaging scanning provided in the embodiment of the present application.

[0122] It should also be noted that the device embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, in the drawings of the device embodiments provided by the present application, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines.

[0123] Through the description of the above implementation mode, the technicians in the field can clearly understand that the present application can be implemented by means of software plus necessary general hardware, and of course, it can also be implemented by special hardware including special integrated circuits, special CPUs, special memories, special components, etc. In general, all functions completed by computer programs can be easily implemented by corresponding hardware, and the specific hardware structure used to implement the same function can also be various, such as analog circuits, digital circuits or special circuits. However, for the present application, software program implementation is a better implementation mode in more cases. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a readable storage medium, such as a computer floppy disk, a U disk, a mobile hard disk, a ROM, a RAM, a disk or an optical disk, etc., including a number of instructions to enable a computer device (which can be a personal computer, a training device, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0124] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments may be implemented in the form of a computer program product.

[0125] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website site, a computer, a training device, or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, training device, or data center. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a training device, a data center, etc. that includes one or more available media integrations. The available medium may be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)), etc.

Claims

1. A method for monitoring patient position in nuclear medicine imaging scanning, characterized in that: The method for monitoring patient position in nuclear medicine imaging scanning comprises: During the nuclear medicine imaging scan, the patient's body position image is captured by an image acquisition device, and the shooting range of the image acquisition device can cover the detection range of the nuclear medicine imaging scan device; Determining the actual body position of the patient by performing feature recognition on the body position image; A standard body position is obtained, and feedback adjustment is performed according to a comparison result between the actual body position and the standard body position.

2. The method for monitoring patient position in nuclear medicine imaging scanning according to claim 1, characterized in that: The determining the actual body position of the patient by performing feature recognition on the body position image includes: Performing coordinate transformation on the body image to obtain three-dimensional data of the body image in the three-dimensional space; Acquiring modeling data of a scanning bed in the nuclear medicine imaging scanning device in the three-dimensional space; Separating the target three-dimensional data higher than the scanning bed from the three-dimensional data based on the modeling data; Features in the target three-dimensional data are identified to determine the actual body position.

3. The method for monitoring patient position in nuclear medicine imaging scanning according to claim 2, characterized in that: The body position image includes a two-dimensional image and a depth image, and the identifying features in the target three-dimensional data to determine the actual body position includes: Performing edge detection on the target three-dimensional data to obtain a human body contour, and determining the actual body position according to the human body contour; or, The human body key points in the target three-dimensional data are detected through a deep learning model, and the actual body position is determined based on the human body key points.

4. The method for monitoring patient position in nuclear medicine imaging scanning according to claim 3, characterized in that: The method for monitoring patient position in nuclear medicine imaging scanning also includes: Performing axial projection on the human body contour to obtain a projection image, and converting the projection image into a physical resolution space; The conversion result of the projection image is displayed and compared with the medical image of the nuclear medicine imaging scanning device.

5. The method for monitoring patient position in nuclear medicine imaging scanning according to claim 4, characterized in that: The method for monitoring patient position in nuclear medicine imaging scanning also includes: Acquiring a scanning range of a relatively moving component in the nuclear medicine imaging scanning device; The scanning range is used to perform interference judgment on the conversion result of the projection image to determine whether there is a risk of collision between the patient and the relatively moving component.

6. The method for monitoring patient position in nuclear medicine imaging scanning according to claim 2, characterized in that: The body position image includes a three-dimensional point cloud image, and the identifying features in the target three-dimensional data to determine the actual body position includes: The three-dimensional feature points in the target three-dimensional data are obtained by three-dimensional feature extraction technology, and the actual body position is determined according to the three-dimensional feature points.

7. The method for monitoring patient position in nuclear medicine imaging scanning according to claim 1, characterized in that: The feedback adjustment according to the comparison result between the actual body position and the standard body position includes: When the actual body position is different from the standard body position, prompt information is output to the patient, or scanning parameters of the nuclear medicine imaging scanning device are adjusted.

8. The method for monitoring patient position in nuclear medicine imaging scanning according to claim 1, characterized in that: The method for monitoring patient position in nuclear medicine imaging scanning also includes: The actual body position is tracked to determine the patient's movement.

9. The method for monitoring patient position in nuclear medicine imaging scanning according to claim 1, characterized in that: The method for monitoring patient position in nuclear medicine imaging scanning also includes: The actual body position and the corresponding feedback adjustment result are recorded.

10. A patient position monitoring device in nuclear medicine imaging scanning, characterized in that: The patient position monitoring device in nuclear medicine imaging scanning comprises: An image capturing module is used to capture a patient's body position image by an image acquisition device during a nuclear medicine image scanning process, wherein the capturing range of the image acquisition device can cover the detection range of the nuclear medicine image scanning device; A body position determination module, used to determine the actual body position of the patient by performing feature recognition on the body position image; The feedback adjustment module is used to obtain the standard body position and perform feedback adjustment according to the comparison result between the actual body position and the standard body position.

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