Coil display method and system
By acquiring and displaying the position of the imaging coil in the magnetic resonance imaging system, the image quality problem caused by inaccurate coil placement is solved, and higher scanning accuracy and image quality are achieved.
Patent Information
- Application Number
- CN202210909245.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-07-29
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2042-07-29
AI Technical Summary
During magnetic resonance imaging, the placement position of the imaging coil has an important impact on image accuracy, but the prior art is difficult to display the coil position in real time during scanning, resulting in poor image quality.
By acquiring the position of the imaging coil and detecting user operations, it is possible to display the coil position in the scanned image to meet user needs, and to display the coil position in the image to help analyze image quality problems.
It improves scanning accuracy and image quality, reduces the operator's experience requirements, adds the coil visualization characteristics, and provides more convenience and operability.
Smart Images

Figure CN115267628B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of medical image processing, and in particular to a coil display method and system. Background Art
[0002] Magnetic resonance imaging (MRI) is one of the main imaging methods in modern medical imaging. It has the advantages of high soft tissue resolution, no radiation damage, and diversified imaging parameters. It is widely used in clinical diagnosis. During the MRI process, the placement of the imaging coil has an important impact on the accuracy of the scanned image.
[0003] Therefore, it is necessary to provide a method that can display the specific position of the coil on the magnetic resonance scanning display interface. Summary of the invention
[0004] One of the embodiments of the present specification provides a coil display method, which includes: acquiring a coil position of an imaging coil used to scan a target object; and detecting a user's operation on an operation control to determine whether to display the coil position in a scanned image.
[0005] One of the embodiments of the present specification provides a coil display system, which includes: a coil position acquisition module, used to acquire the coil position of an imaging coil used to scan a target object; a coil position display module, used to detect a user's operation of an operation control to determine whether to display the coil position in a scanned image.
[0006] One of the embodiments of the present specification provides a coil display device, including a processor, wherein the processor is used to execute the coil display method.
[0007] One of the embodiments of the present specification provides a computer-readable storage medium, wherein the storage medium stores computer instructions. When a computer reads the computer instructions in the storage medium, the computer executes the coil display method.
[0008] In some embodiments of this specification, by detecting the user's operation, it is possible to realize whether to display the coil position in the scanned image to meet the user's needs. When the image quality is poor, it can help doctors or operators analyze whether the image quality is affected by the coil position. At the same time, displaying the coil position in the image can also provide more convenience and operability for subsequent scans, such as self-service scanning, additional scanning, and rescanning. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] This specification will be further described in the form of exemplary embodiments, which will be described in detail by the accompanying drawings. These embodiments are not restrictive, and in these embodiments, the same number represents the same structure, wherein:
[0010] Figure 1 is an exemplary schematic diagram of an application scenario of a coil display system according to some embodiments of this specification;
[0011] Figure 2 is an exemplary flow chart of a coil display method according to some embodiments of this specification;
[0012] Figure 3 is an exemplary flow chart for determining whether the coil position matches the scanning part according to some embodiments of this specification;
[0013] Figure 4 is another exemplary flow chart for determining whether the coil position matches the scanning part according to some embodiments of this specification;
[0014] Figure 5 is an exemplary module diagram of a coil display system according to some embodiments of this specification;
[0015] Fig. 6A is an exemplary schematic diagram showing that the coil position is not displayed in the configuration page according to some embodiments of this specification;
[0016] Figure 6B An exemplary schematic diagram showing coil positions in a configuration page according to some embodiments of the present specification. DETAILED DESCRIPTION
[0017] In order to more clearly illustrate the technical solutions of the embodiments of this specification, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of this specification. For ordinary technicians in this field, this specification can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.
[0018] It should be understood that the "system", "device", "unit" and / or "module" used herein are a method for distinguishing different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.
[0019] As shown in this specification and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "comprise" and "include" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.
[0020] Flowcharts are used in this specification to illustrate the operations performed by the system according to the embodiments of this specification. It should be understood that the preceding or following operations are not necessarily performed precisely in order. Instead, the steps may be processed in reverse order or simultaneously. At the same time, other operations may also be added to these processes, or one or more operations may be removed from these processes.
[0021] In magnetic resonance imaging, the imaging coil is placed at the patient's scanning site by the operator based on personal experience. If the operator is inexperienced or does not know the specific location of the patient's scan, the coil may be placed incorrectly, resulting in inaccurate images. The selection of the imaging coil position is determined by the operator's experience, which places high demands on the operator's work experience. In addition, in special usage scenarios, doctors may want to present the coil position in medical images.
[0022] Therefore, some embodiments of this specification provide a coil display method and system. In this method, the specific position of the imaging coil during scanning can be displayed in the operation interface before scanning and the image obtained after the scan is completed. The displayed coil position can be used to determine whether it matches the scanned part, thereby realizing the visualization function of the coil and providing relevant available information for scanning and diagnosis of the disease. At the same time, it can also meet the doctor's need to present the coil position during scanning in the image. It should be noted that the examples illustrated above are for illustrative purposes only. The coil display method and system can be applied to other imaging equipment imaging scenarios, such as PET-MRI scanning, etc., and this specification does not limit this.
[0023] Figure 1 It is an exemplary schematic diagram of an application scenario of the coil display system shown in some embodiments of this specification.
[0024] like Figure 1 As shown, the scene 100 may include an imaging device 110, a processing device 120, a terminal device 130, a storage device 140, and a network 150. In some embodiments, the processing device 120 may be a part of the imaging device 110.
[0025] The imaging device 110 can be used to image the target object to generate an image. The imaging device 110 may include various types of medical imaging devices. In some embodiments, the imaging device 110 may include an imaging coil (not shown in the figure), which may be used to obtain imaging signals for imaging to generate images. In some embodiments, the imaging device 110 may include a single-modality scanner and / or a multi-modality scanner. A single-modality scanner may include a magnetic resonance imaging (MRI) scanner, or other scanners involving coil imaging. A multi-modality scanner may include an X-ray imaging-magnetic resonance imaging (X-ray-MRI) scanner, a single photon emission computed tomography-magnetic resonance imaging (SPECT-MRI) scanner, a digital subtraction angiography-magnetic resonance imaging (DSA-MRI) scanner, etc.
[0026] The processing device 120 can be used to process information and / or data. For example, the processing device 120 can be used to process information and / or data related to coil display. In some embodiments, the processing device can obtain the coil position of the scanning imaging coil used to scan the target object; and detect the user's operation of the operation control to determine whether to display the coil position in the scanned image. In some embodiments, the processing device 120 can process data, information and / or processing results obtained from other devices or system components, and execute program instructions based on these data, information and / or processing results to perform one or more functions described in this specification. For example, the processing device 120 can receive the user's operation of the operation control from the terminal device 130, and display the coil position in the scanning configuration interface of the imaging device 110. In some embodiments, the processing device 120 can be a single server or a server group. The server group can be centralized or distributed. In some embodiments, the processing device 120 can be local or remote. For example, the processing device 120 can access information and / or data from the imaging device 110, the terminal device 130 and / or the storage device 140 through the network 150. In some embodiments, processing device 120 may be implemented on a cloud platform.
[0027] The terminal device 130 may include a mobile device 130-1, a tablet computer 130-2, a laptop computer 130-3, etc. or any combination thereof. In some embodiments, the terminal device 130 may interact with other components in the coil display system through a network. For example, the terminal device 130 may send one or more control instructions to the imaging device 110 to control the imaging device 110 to scan the target object according to the instructions. For another example, the terminal device 130 may also receive and display a medical image obtained by imaging the imaging signal by the processing device 120. In some embodiments, the terminal device 130 may be a part of the imaging device 110. In some embodiments, the terminal device 130 may be integrated with the processing device 120 as an operating console for the imaging device 110.
[0028] The storage device 140 may store data, instructions, and / or any other information. In some embodiments, the storage device 140 may store data obtained from the imaging device 110 and / or the processing device 120. For example, imaging signals acquired by the imaging coil when the imaging device is scanning, images obtained based on the imaging signals, etc. In some embodiments, the storage device 140 may store data and / or instructions used by the processing device 120 to execute or use to complete the exemplary methods described in this specification. In some embodiments, the storage device 140 may include a large-capacity memory, a removable memory, a volatile read-write memory, a read-only memory (ROM), etc., or a combination of several of them.
[0029] The network 150 may include any suitable network capable of facilitating information and / or data exchange. In some embodiments, at least one component of the scene 100 (e.g., the imaging device 110, the processing device 120, the terminal device 130, the storage device 140) may exchange information and / or data with at least one other component in the scene 100 via the network 150. For example, the processing device 120 may obtain a scanned image of a target object from the imaging device 110 via the network 150.
[0030] It should be noted that the scene 100 of the coil display system is provided for illustrative purposes only and is not intended to limit the scope of the present application. For those of ordinary skill in the art, various modifications or variations can be made according to the description of this specification. For example, the scene 100 can also include a database. For another example, the scene 100 can implement similar or different functions on other devices. However, these changes and modifications will not deviate from the scope of the present application.
[0031] Figure 2is an exemplary flow chart of an exemplary coil display method according to some embodiments of this specification. In some embodiments, process 200 can be executed by a processing device (e.g., processing device 120). For example, process 200 can be stored in a storage device (e.g., a built-in storage unit of the processing device or an external storage device) in the form of a program or instruction, and the program or instruction can implement process 200 when executed. Figure 2 As shown, process 200 may include the following steps.
[0032] Step 210 , obtaining the coil position of an imaging coil used to scan the target object. In some embodiments, step 210 may be performed by the coil position obtaining module 510 .
[0033] The target object may include a patient or other medical experimental subject (e.g., experimental mice or other animals), etc. The target object may also be a part of a patient or other medical experimental subject, including an organ and / or tissue, such as a heart, lung, rib, abdominal cavity, etc.
[0034] The imaging coil is an important component for realizing the function of the imaging device. Taking the magnetic resonance imaging device as an example, the magnetic resonance imaging device mainly includes a magnet, an imaging coil, a receiving link, etc. Among them, the imaging coil may include a gradient coil, a radio frequency coil, a receiving coil, etc. A uniform static magnetic field is generated by a superconducting magnet, and the radio frequency transmitting coil excites the precession of hydrogen nuclear spins to generate a magnetic resonance signal, and the gradient coil is used to encode the spatial information of the signal. The above-mentioned magnetic resonance signal is collected by the radio frequency receiving coil, converted into a digital signal through the receiving link, and finally reconstructed by a computer to obtain a magnetic resonance image. As an important component of the magnetic resonance system, the coil plays a decisive role in the image quality of the magnetic resonance system. In some embodiments, the imaging coil may include one or more of a gradient coil, a video coil, a receiving coil, etc.
[0035] The coil position may refer to the relative position of the imaging coil to a reference object, for example, the position of the imaging coil relative to the scanning bed, the position of the imaging coil relative to the target object on the scanning bed, or the position of the imaging coil relative to other objects.
[0036] In some embodiments, the coil position may be represented by position coordinates. For example, the coil position may be determined based on the spatial coordinates of the geometric center of the imaging device. For example, a spatial coordinate system may be established based on the geometric center of the imaging device, and the coordinates of the geometric center may be set to (0, 0, 0). When the imaging coil of the imaging device moves, the spatial coordinates of the imaging coil (the spatial coordinates may be determined by its geometric center, such as the center of mass coil, etc.) may be within a spatial coordinate system set with the geometric center of the imaging device as the origin. For example, the spatial coordinates of the imaging coil may be (30, 50, 60).
[0037] In some embodiments, the imaging coil used to scan the target object may be one or more of the multiple coils of the imaging device, for example, one or more radio frequency coils, receiving coils, etc. In some embodiments, the imaging coil may be a segment or several segments of a coil of the imaging device selected by the user.
[0038] In some embodiments, the user can adjust the position of the imaging coil to place the imaging coil at a different position for more accurate scanning.
[0039] In some embodiments, the coil position may be determined based on a control system of the imaging device, for example, the control system may record the position coordinates of each movement of the coil.
[0040] Step 220 , detecting the user's operation on the operation control to determine whether to display the coil position in the scanned image. In some embodiments, step 220 may be performed by the coil position display module 520 .
[0041] The user may be an operator of the imaging device, such as a doctor, researcher, etc. The operation control may be a button, a check box, an input box, a draggable scanning point, etc., of the operation interface of the imaging device. In some embodiments, the user may operate the operation control in a variety of ways, such as touch, voice, gesture, external device (mouse, keyboard, etc.) operation, etc.
[0042] The scanned image may refer to an image generated based on the signal collected by the imaging coil after the imaging device scans the target object, for example, an image obtained by image reconstruction based on the imaging signal.
[0043] In some embodiments, the processing device may detect the user's operation on the operation control based on whether the corresponding operation instruction is received. For example, the operation space of whether to display the coil position in the scanned image may be similar to the "whether to display the coil position in the scanned image yes / no" operation space. If the user selects "yes", the instruction to display the coil position in the scanned image may be triggered. If the user selects "no", the instruction not to display the coil position in the scanned image may be triggered. In some embodiments, the user may operate the operation control by selecting, switching, dragging, voice input, etc.
[0044] In response to the user's operation of the operating control, when it is necessary to display the coil position in the scanned image, the processing device can display the position of the imaging coil relative to the target object during scanning in the scanned image. In some embodiments, the coil position can be indicated by various methods such as solid lines, dotted lines, boxes, arrows, etc. In some embodiments, the boundary of the coil displayed in the scanned image can be used as the coil position. The way of displaying the boundary of the coil can avoid covering the tissue structure of the target object in the scanned image.
[0045] In some embodiments, the scanned image may be a two-dimensional image or a three-dimensional image, which is not limited in this specification.
[0046] In some embodiments, the coil display method may further include step 230, detecting the user's operation on the operation control to determine whether to display the coil position in the configuration interface before scanning. In some embodiments, step 230 may be performed by the coil position display module 520.
[0047] The configuration interface before scanning can be a configuration interface of a scanning protocol before scanning the target object. In some embodiments, the scanning protocol may include multiple parameters, such as scanning parameters, reconstruction parameters, etc. In some embodiments, the scanning protocol may include scanning time, signal-to-noise ratio, number of excitations, spatial resolution, repetition time, readout signal mode, etc., or any combination thereof. In some embodiments, the scanning protocol may be stored in a storage device and / or an external data source.
[0048] In some embodiments, the processing device may determine whether to display the coil position in the pre-scan configuration interface based on the user's operation. For example, in response to the user checking the "Display coil position in pre-scan configuration interface" dialog box, clicking the "Display coil position in pre-scan configuration interface" dialog box, pressing the "Display coil position in pre-scan configuration interface" button, emitting a voice related to "Display coil position in pre-scan configuration interface", performing a gesture action related to "Display coil position in pre-scan configuration interface", etc., the processing device performs a corresponding operation.
[0049] In some embodiments, when the user sets the coil position not to be displayed in the configuration interface through the operation control, the coil position may not be indicated on the model structure of the target object displayed in the configuration interface. Fig. 6A and Figure 6B , Fig. 6A is an exemplary schematic diagram showing that the coil position is not displayed in the configuration page according to some embodiments of this specification. Figure 6B FIG. 1 is an exemplary schematic diagram showing coil positions in a configuration page according to some embodiments of this specification. Figure 6B The dotted box in represents the coil position of the scanning coil.
[0050] In some embodiments of the present specification, whether to display the coil position in the configuration interface before scanning and / or the scanned image is implemented based on user needs, which can reduce the experience requirements for the operator, improve the scanning accuracy, improve the scanned image quality, increase the coil visualization features, enrich the user's usage rights, realize coil virtualization, and help technicians or R&D personnel analyze image quality more intuitively and conveniently.
[0051] Figure 3 This is an exemplary flow chart of an exemplary method of determining whether the coil position matches the scanning part according to some embodiments of this specification. In some embodiments, process 300 can be executed by a processing device. For example, process 300 can be stored in a storage device (such as a built-in storage unit of the processing device or an external storage device) in the form of a program or instruction, and the program or instruction can implement process 300 when it is executed. Figure 3 As shown, process 300 may include the following steps:
[0052] Step 310, determining whether the coil position matches the position of the scanned part of the target object.
[0053] The scanning site may include organs and / or tissues of the target object, for example, the heart, lungs, ribs, abdominal cavity, etc.
[0054] Matching may mean that the current coil position can cover the scanning part of the target object. For example, if it can cover, it is considered a match; if it cannot cover, it is considered a mismatch. For example, when scanning the heart of the target object, when the coil completely covers the heart area of the target object, it can be determined that the coil position matches the position of the scanning part.
[0055] In some embodiments, the processing device can determine whether the coil position matches the position of the scanning part in a variety of ways. For example, the processing device can obtain information about the target object on the scanning bed, such as height, lying position, etc., through laser radar scanning, infrared ranging, etc., and estimate the position coordinates of the scanning part in the spatial coordinate system with the center of the imaging device as the coordinate origin based on the information, and determine whether the coil position matches the position of the scanning part based on the position coordinates and the position coordinates of the imaging coil (coil position). For another example, the processing device can obtain a positioning image of the target object and determine whether the coil position matches the position of the scanning part based on the positioning image. For more instructions on determining whether the coil position matches the position of the scanning part based on the positioning image, please refer to Figure 4 and its related description.
[0056] In some embodiments, when it is determined that the coil position matches the position of the scanning part, subsequent processes, such as scanning processes, can be executed; when it is determined that the coil position does not match the position of the scanning part, step 320 can be executed.
[0057] Step 320 , in response to the coil position not matching the position of the scanned part, a prompt is issued to the user.
[0058] In some embodiments, the prompt can be used to inform the user of information related to the coil position. For example, the prompt can include informing the user that the coil position needs to be adjusted and / or the coil needs to be reselected. For another example, the prompt can include informing the user that the current coil position matches the position of the scanning part, whether to enter the subsequent process, etc. It can be understood that there may be many reasons for the mismatch between the coil position and the scanning part, for example, the operator improperly selects the coil segment (such as the selected coil is too small or the selected coil position has a limited range of movement and cannot cover the scanning part), the position of the coil is not accurately placed, etc. Based on the reasons for the position mismatch, the processing device can send corresponding prompts to the user, such as prompting to reselect the coil if the coil is not selected properly, and prompting to adjust the coil position if the coil position is not accurately placed. In some embodiments, the processing device can also directly send prompts to the user to adjust the coil position and reselect the coil, and the user can choose whether to reselect the coil or adjust the coil position.
[0059] In some embodiments, the types of prompts may include image prompts, text prompts, voice prompts, vibration prompts, etc.
[0060] In this embodiment, by determining whether the coil position matches the scanning part and issuing a prompt to the user, the operator's experience requirements can be reduced, the coil can be accurately placed, and problems such as uneven distribution of image signals and reduced signal-to-noise ratio due to the coil deviating from the scanning part can be avoided.
[0061] Figure 4 400 is another exemplary flow chart for determining whether the coil position matches the scanning part according to some embodiments of the present specification. In some embodiments, process 400 can be executed by processing device 120. For example, process 400 can be stored in a storage device (such as a built-in storage unit of the processing device or an external storage device) in the form of a program or instruction, and when the program or instruction is executed, process 400 can be implemented. Figure 4 As shown, process 400 may include the following steps:
[0062] Step 410: Acquire a positioning image of the target object.
[0063] The positioning image may refer to an image obtained including the scanning bed and the target object. For example, an image of the target object located on the scanning bed. The positioning image may be used to locate the scanning part during the scanning examination, that is, to determine the corresponding position of the planned scanning range on the body structure of the target object. In some embodiments, the positioning image may be obtained by camera shooting, positioning scanning, etc.
[0064] Step 420: Determine the position of the scanned part in the positioning image based on the positioning image.
[0065] The position of the scanning part in the image may refer to the position area of the scanning part in the positioning image. In some embodiments, the position may correspond to the anatomical structure position of the target object to more accurately determine the scanning part.
[0066] In some embodiments, the processing device may determine the position of the scanned part in the positioning image by image recognition. For example, the processing device may call a trained image recognition model to determine the position of the scanned part in the positioning image by using the image recognition model.
[0067] In some embodiments, the image recognition model may be a machine learning model. For example, a deep neural network model, a convolutional neural network model, etc. The input of the image recognition model may be a positioning image and a scanning part, and the output may be an identification box of the scanning part in the positioning image, and the identification box may select the area where the scanning part is located in the positioning image. In some embodiments, the initial model may be trained with sample data to obtain an image recognition model. The sample data may include training samples and corresponding labels, and the training samples may be sample positioning images, and the labels may be the positions of the scanning parts in the sample positioning images. Among them, the labels may be obtained by manual annotation or other methods, and the training methods may be various common training methods, such as gradient descent method, etc.
[0068] Step 430 , based on the position of the scanning part in the positioning image, determine whether the coil position matches the position of the scanning part.
[0069] In some embodiments, the processing device can determine whether the coil position matches the position of the scanning part by judging whether the coil covers the scanning part based on the position of the scanning part in the positioning image and the coil position. For example, when the scanning part is the abdomen, it is found through the coil position that part of the coil is located above the abdomen of the target object, but cannot completely cover the abdomen, and at this time it is judged that the coil does not cover the scanning part; for another example, when the scanning part is the brain, although the coil position is located in the brain, it cannot completely cover the brain due to the small size of the coil, and it is judged that the coil does not cover the scanning part.
[0070] In some embodiments, the processing device may establish a mapping relationship between the positioning image and the spatial coordinates established based on the center of the imaging device, determine the spatial coordinates corresponding to the scanning part in the current positioning image, and further determine whether the coil position matches the position of the scanning part based on the position coordinates corresponding to the scanning part and the position coordinates of the imaging coil.
[0071] In this embodiment, by acquiring a positioning image and determining whether the coil position matches the scanning part through image recognition, the operator can avoid making judgments based on experience, reduce the influence of human subjective factors, and improve the accuracy of coil placement.
[0072] It should be noted that the above description of each process is only for example and explanation, and does not limit the scope of application of this specification. For those skilled in the art, various modifications and changes can be made to the process under the guidance of this specification. However, these modifications and changes are still within the scope of this specification. For example, a pre-processing step, a storage step, etc. can be included in each process.
[0073] Figure 5 is an exemplary module diagram of an exemplary coil display system according to some embodiments of this specification. Figure 5 As shown, the coil display system 500 may include a coil position acquisition module 510 and a coil position display module 520 .
[0074] The coil position acquisition module 510 may be used to acquire the coil position of an imaging coil used to scan a target object.
[0075] The coil position display module 520 may be used to detect a user's operation on an operation control to determine whether to display the coil position in the scan image.
[0076] The coil position display module 520 may also be used to detect the user's operation on the operation control to determine whether to display the coil position in the configuration interface before scanning.
[0077] In some embodiments, the coil display system 500 may further include a judgment prompt module 530 for judging whether the coil position matches the position of the scanned part of the target object; in response to the coil position not matching the position of the scanned part, a prompt is issued to the user.
[0078] It should be noted that the above description of the coil display system 500 and its modules is only for convenience of description and does not limit this specification to the scope of the embodiments. It is understandable that for those skilled in the art, after understanding the principle of the system, it is possible to arbitrarily combine the modules or form a subsystem connected with other modules without deviating from this principle. In some embodiments, the above modules can be different modules in a system, or a module can realize the functions of two or more modules mentioned above. For example, each module can share a storage module, or each module can have its own storage module. Such variations are all within the scope of protection of this specification.
[0079] Some embodiments of the present specification also relate to a coil display device, including a processor, wherein the processor is used to execute the coil display method.
[0080] Some embodiments of the present specification also relate to a computer-readable storage medium, which stores computer instructions. When a computer reads the computer instructions in the storage medium, the computer executes the coil display method.
[0081] The beneficial effects that may be brought about by this application include but are not limited to: (1) reducing the requirements for operator experience. If the operator is not sure about the exact position of the scanning part, the coil position can be displayed to determine whether the coil is placed accurately. If the coil is not placed accurately, the configuration interface will display a reminder of the incorrect placement of the coil, thereby saving the technician's scanning time and improving scanning efficiency; (2) improving scanning accuracy. By accurately displaying the coil position, the accuracy of the scanning position is ensured, thereby avoiding the need for rescanning due to inaccurate coil position; (3) improving the quality of the scanned image. The accurate placement of the coil avoids problems such as uneven distribution of image signals and reduced signal-to-noise ratio due to the deviation of the coil from the scanning part; (4) increasing the visualization of the coil and enriching the operator's choice. The operator can choose whether to display the coil position according to his or her own habits and preferences, so that the coil position can be displayed in the operation interface or imaging interface; (5) realizing coil virtualization, helping technicians or patients understand the coil position information, and helping doctors or patients analyze the reasons for image quality. Provide more convenience and operability for future self-service scanning; (6) helping technicians or R&D personnel to analyze image quality more intuitively and conveniently. When the image quality is poor, the relative relationship between the coil and the scanned part can be seen in the scanned image, so as to more conveniently analyze whether the image quality is related to the coil placement position. It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced may be any one or a combination of the above, or any other possible beneficial effects.
[0082] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification.
[0083] At the same time, this specification uses specific words to describe the embodiments of this specification. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of this specification can be appropriately combined.
[0084] In addition, unless explicitly stated in the claims, the order of the processing elements and sequences described in this specification, the use of alphanumeric characters, or the use of other names are not intended to limit the order of the processes and methods of this specification. Although the above disclosure discusses some invention embodiments that are currently considered useful through various examples, it should be understood that such details are only for illustrative purposes, and the attached claims are not limited to the disclosed embodiments. On the contrary, the claims are intended to cover all modifications and equivalent combinations that are consistent with the essence and scope of the embodiments of this specification. For example, although the system components described above can be implemented by hardware devices, they can also be implemented only by software solutions, such as installing the described system on an existing server or mobile device.
[0085] Similarly, it should be noted that in order to simplify the description disclosed in this specification and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this specification, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the subject matter of this specification are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.
[0086] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of this specification are approximate values, in specific embodiments, the setting of such numerical values is as accurate as possible within the feasible range.
[0087] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, documents, etc., cited in this specification are hereby incorporated by reference in their entirety. Except for application history documents that are inconsistent with or conflicting with the contents of this specification, documents that limit the broadest scope of the claims of this specification (currently or later attached to this specification) are also excluded. It should be noted that if the descriptions, definitions, and / or use of terms in the materials attached to this specification are inconsistent or conflicting with the contents described in this specification, the descriptions, definitions, and / or use of terms in this specification shall prevail.
[0088] Finally, it should be understood that the embodiments described in this specification are only used to illustrate the principles of the embodiments of this specification. Other variations may also fall within the scope of this specification. Therefore, as an example and not a limitation, alternative configurations of the embodiments of this specification may be considered consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments explicitly introduced and described in this specification.
Claims
1. A coil display method, the method comprising: Acquiring a coil position of an imaging coil for scanning a target object, wherein the coil position is determined based on the spatial coordinates of a geometric center of an imaging device; Detecting a user's operation on an operation control to determine whether to display the coil position in a configuration interface before scanning, wherein the operation control is a draggable scanning point; Detecting the user's operation on the operating control to determine whether to display the coil position in the scanned image; wherein displaying the coil position in the scanned image includes taking the boundary of the coil displayed in the scanned image as the coil position; displaying the coil position is indicated by one of a solid line, a dotted line, a box, and an arrow.
2. The method according to claim 1, further comprising: determining whether the coil position matches the position of the scanned portion of the target object; In response to the coil position not matching the position of the scan site, a prompt is issued to the user.
3. The method according to claim 2, wherein determining whether the coil position matches the position of the scanned part of the target object comprises: Acquire a positioning image of the target object; Based on the positioning image, determining the position of the scanned part in the positioning image; Based on the position of the scanning site in the locator image, it is determined whether the coil position matches the position of the scanning site.
4. The method according to claim 3, wherein determining whether the coil position matches the position of the scanning part based on the position of the scanning part in the positioning image comprises: Determining whether the coil covers the scanning part based on the position of the scanning part in the positioning image and the coil position; In response to the coil not covering the scanning region, it is determined that the coil position does not match the position of the scanning region. The method according to claim 2 , wherein the prompt comprises adjusting the coil position and / or reselecting the coil.
6. A coil display system, the system comprising: A coil position acquisition module, used to acquire a coil position of an imaging coil used to scan a target object, wherein the coil position is determined based on the spatial coordinates of a geometric center of an imaging device; A coil position display module is used to detect the user's operation on the operating control to determine whether to display the coil position in the configuration interface before scanning, and the operating control is a draggable scanning point; and to detect the user's operation on the operating control to determine whether to display the coil position in the scanned image; wherein displaying the coil position in the scanned image includes using the boundary of the coil displayed in the scanned image as the coil position; the displayed coil position is indicated by one of a solid line, a dotted line, a box, and an arrow.
7. The system according to claim 6, further comprising a judgment prompt module, wherein the judgment prompt module is used to: determining whether the coil position matches the position of the scanned portion of the target object; In response to the coil position not matching the position of the scan site, a prompt is issued to the user.
8. A coil display device, comprising a processor, wherein the processor is used to execute the coil display method according to any one of claims 1 to 5.
9. A computer-readable storage medium, wherein the storage medium stores computer instructions. When a computer reads the computer instructions in the storage medium, the computer executes the coil display method according to any one of claims 1 to 5.
Citation Information
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