Medical image display method and device, medical imaging apparatus, and storage medium

Abstract

The present application relates to the technical field of medical images, and discloses a medical image display method and device, a medical imaging device and a storage medium. After determining an extended reconstruction field of view region and a scanning field of view region of a target medical image located outside the scanning field of view, the extended reconstruction field of view region and the scanning field of view region are displayed separately. The image of the scanning field of view region provides higher spatial resolution and contrast, and is suitable for detailed analysis and diagnosis of a specific region, while the image of the extended reconstruction field of view region provides a more comprehensive field of view, which helps doctors to find lesions or abnormal conditions in a larger range. Therefore, by displaying the extended reconstruction field of view region and the scanning field of view region separately, the scanning field of view region and the extended reconstruction field of view region can be distinguished when the target medical image is displayed, the diagnosis efficiency is improved, and the misdiagnosis rate is reduced.

Description

Technical Field

[0001] This invention relates to the field of medical imaging technology, and in particular to a medical image display method, apparatus, medical imaging device, and storage medium. Background Technology

[0002] The scanning field of view determines the coverage area during a computed tomography scan, while the reconstructed field of view is the area displayed when the image is reconstructed by the computer after the scan. By expanding the reconstructed field of view, the reconstruction range can be increased based on the original scanning field of view, thereby covering a larger examination area. Summary of the Invention

[0003] The embodiments described in this specification aim to at least partially solve one of the technical problems in the related art. To this end, the embodiments of this specification propose a medical image display method, apparatus, medical imaging device, and storage medium.

[0004] This specification provides a method for displaying medical images, the method comprising:

[0005] Determine the extended reconstruction field of view and the scanning field of view of the target medical image, wherein the extended reconstruction field of view is the reconstruction area located outside the scanning field of view;

[0006] The expanded reconstructed field of view and the scanned field of view are displayed separately.

[0007] In one implementation, the extended reconstructed field of view and the scanned field of view are displayed separately, including:

[0008] A boundary marker is displayed at the intersection of the extended reconstruction field of view and the scanned field of view.

[0009] In one embodiment, distinguishing between the expanded reconstructed field of view and the scanned field of view further includes:

[0010] Receive a preset trigger operation to hide the boundary marker.

[0011] In one embodiment, the target medical image includes a first image corresponding to the expanded reconstructed visual field region and a second image corresponding to the scanned visual field region. Distinguishing between the expanded reconstructed visual field region and the scanned visual field region includes:

[0012] Receive preset trigger operations;

[0013] Show or hide at least one of the first image corresponding to the expanded reconstructed field of view and the second image corresponding to the scanned field of view.

[0014] In one implementation, it also includes:

[0015] A boundary marker is displayed at the intersection of the extended reconstruction field of view and the scanned field of view.

[0016] In one embodiment, the target medical image includes a first image corresponding to the expanded reconstructed visual field region and a second image corresponding to the scanned visual field region. Distinguishing between the expanded reconstructed visual field region and the scanned visual field region includes:

[0017] The first image and the second image are displayed side-by-side.

[0018] In one embodiment, the display information of the first image and the second image is adjusted independently.

[0019] In one embodiment, different scanned areas correspond to different display methods, and the method further includes:

[0020] Determine the scanning site corresponding to the target medical image;

[0021] Based on the scanned area, a distinguishing display method is determined for the extended reconstruction field of view and the scanned field of view.

[0022] In one implementation, determining the scanning site corresponding to the target medical image includes:

[0023] Obtain the scanning protocol corresponding to the target medical image, wherein the scanning protocol includes scanning site information;

[0024] Based on the scanning protocol, the scanning area is determined; or,

[0025] The target medical image is input into a site recognition model for identification to determine the scanned site.

[0026] This specification provides a medical image display device, the device comprising:

[0027] The field of view determination module is used to determine the extended reconstruction field of view and the scanning field of view of the target medical image, wherein the extended reconstruction field of view is the reconstruction area located outside the scanning field of view.

[0028] The field of view region differentiation display module is used to differentiate and display the extended reconstructed field of view region and the scanned field of view region.

[0029] This specification provides a medical imaging device, which includes: a memory, and one or more processors communicatively connected to the memory; the memory stores instructions executable by the one or more processors, which, when executed by the one or more processors, cause the one or more processors to perform the steps of the method described in any of the above embodiments.

[0030] This specification provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in any of the above embodiments.

[0031] This specification provides a computer program product that includes instructions that, when executed by a processor of a computer device, enable the computer device to perform the steps of the method described in any of the above embodiments.

[0032] In the above-described embodiments, after determining the extended reconstructed field of view (ERV) and the scanned field of view (SVR) of the target medical image located outside the scanned field of view, the ERV and SVR are displayed separately. The SVR image provides higher spatial resolution and contrast, suitable for detailed analysis and diagnosis of specific areas, while the ERV image provides a more comprehensive field of view, helping doctors detect lesions or abnormalities over a wider area. Therefore, by distinguishing between the ERV and SVR, the target medical image can be presented in a way that differentiates between the two regions, improving diagnostic efficiency and reducing the misdiagnosis rate. Attached Figure Description

[0033] Figure 1a A schematic diagram of the field of view provided for embodiments of this specification;

[0034] Figure 1b A schematic diagram of the acquisition and reconstruction field of view provided for the implementation of this specification;

[0035] Figure 1c A schematic diagram illustrating an area of ​​the field of view that cannot be acquired for the purpose of implementing this specification.

[0036] Figure 1d Another schematic diagram illustrating the inability to acquire extended reconstruction field of view areas for the purposes of this specification;

[0037] Figure 1e A schematic flowchart illustrating the medical image display method provided in the embodiments of this specification;

[0038] Figure 2 A schematic flowchart illustrating the medical image display method provided in the embodiments of this specification;

[0039] Figure 3 A schematic diagram illustrating the display of distinguishing markers in an initial CT scan image, provided for the purposes of this specification.

[0040] Figure 4 A flowchart illustrating the target CT examination image provided for the implementation of this specification;

[0041] Figure 5 A schematic diagram illustrating an image of the scanned field of view provided for an embodiment of this specification;

[0042] Figure 6a A schematic diagram illustrating an image showing an expanded reconstructed field of view, provided for embodiments of this specification;

[0043] Figure 6b A flowchart illustrating the display of a target medical image provided for embodiments of this specification;

[0044] Figure 7a A flowchart illustrating the comparison display of the first and second images provided for embodiments of this specification;

[0045] Figure 7b A schematic diagram showing a comparison of the first and second images provided for embodiments of this specification;

[0046] Figure 8 A flowchart illustrating the method for distinguishing between the extended reconstruction field of view and the scanned field of view in the embodiments of this specification;

[0047] Figure 9 A schematic diagram of a medical image display device provided for embodiments of this specification. Detailed Implementation

[0048] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0049] The scanning field of view (SFR) refers to the size of the field of view set during computed tomography (CT) scanning, determining the area that can be completely covered during the scan. The reconstructed field of view (RCD) refers to the size of the field of view displayed in the image reconstructed by the computer after the CT scan. Typically, the SFR should be greater than or equal to the RCD, meaning the SFR area should cover the RCD area.

[0050] For obese patients, the area requiring examination is relatively large. Due to the limitations of the detector's sector angle, the scanning field of view cannot completely cover the areas to be examined. Therefore, the extended reconstruction field of view function was introduced. Extended reconstruction field of view adds a reconstruction field of view area to the existing scanning field of view to obtain a larger image reconstruction field of view. Although extended reconstruction field of view can cover a larger examination area, the image quality obtained from it needs improvement.

[0051] Please see Figure 1a The circular area labeled 1 represents the scanning field of view, which is completely covered by X-rays during gantry rotation. Data within this area can be acquired at any gantry angle. The annular area labeled 2 represents the extended reconstruction field of view, which is only covered by X-rays when the gantry is at a specific angle. Please refer to [link to relevant documentation]. Figure 1b , Figure 1b Point A in the image is located within the extended reconstruction field of view. Data at this point can be acquired when the X-ray tube is positioned directly overhead. Please refer to [link / reference]. Figure 1c , Figure 1c Point A is located within the extended reconstruction field of view. When the X-ray tube is on the right side, data for point A cannot be acquired. Figure 1b and Figure 1c The detectors are symmetrically distributed with respect to the center line of the scanned field of view. In other examples, such as... Figure 1d As shown, the detectors are asymmetrically distributed relative to the center line of the scanning field of view, and one side of the center line of the scanning field of view is completely covered. Figure 1d (Left side), the area on the other side of the center line of the scanned field of view is not completely covered ( Figure 1d (On the right side), data is missing in areas that are not fully covered, resulting in incomplete data within the expanded reconstruction field of view.

[0052] Expanding the reconstructed field of view allows physicians to observe a wider area, displaying more tissue structures and anatomical information simultaneously on the image, thus enabling a more comprehensive assessment of lesions or abnormalities. However, because the data within the expanded reconstructed field of view is incomplete, increased noise and artifacts may occur during image reconstruction. These problems can lead to blurred images, reduced resolution, and decreased contrast, affecting diagnostic accuracy.

[0053] In related technologies, the expanded reconstructed visual field image and the scanned visual field image are usually displayed simultaneously on a single image without clear distinction. Highlighting the expanded reconstructed visual field image would help doctors more clearly differentiate between these two areas, improving the accuracy and reliability of image observation and analysis.

[0054] Based on this, the embodiments of this specification provide a method for displaying medical images. After determining the extended reconstructed field of view (ERV) and the scanned field of view (SVR) of the target medical image located outside the scanned field of view, the ERV and SVR are displayed separately. The image in the SVR provides higher spatial resolution and contrast, suitable for detailed analysis and diagnosis of specific areas, while the image in the ERV provides a more comprehensive field of view, helping doctors to detect lesions or abnormalities over a wider area. Therefore, by distinguishing between the ERV and SVR, the scanned field of view and the ERV can be differentiated when displaying the target medical image, thereby improving diagnostic efficiency and reducing the misdiagnosis rate.

[0055] This specification provides a method for displaying medical images. Please refer to [link / reference]. Figure 1e The medical image display method may include the following steps:

[0056] S110. Determine the extended reconstruction field of view and the scanning field of view of the target medical image. The extended reconstruction field of view is the reconstruction area located outside the scanning field of view.

[0057] S120. Distinguish between the expanded reconstruction field of view and the scanned field of view.

[0058] Specifically, in some cases, important tissues or lesions may be located outside the standard scanning field of view. Expanding the reconstruction field of view can reduce the risk of omission. During a CT scan, the scanning field of view is first set to ensure coverage of the main examination area. If the patient is large or requires a wider coverage area, the expanded reconstruction field of view imaging function is activated to obtain the reconstruction area outside the scanning field of view. The CT equipment acquires complete data within the scanning field of view. In the expanded reconstruction field of view, only when the gantry is at a specific angle can partial data corresponding to the area covered by the radiation at that moment be acquired. Image reconstruction is performed on the acquired data, including the complete data within the scanning field of view and the partial data from the expanded reconstruction field of view, to obtain a target medical image containing both the scanning field of view and the expanded reconstruction field of view. The expanded reconstruction field of view and the scanning field of view can be identified in the target medical image. To distinguish between the scanning field of view and the expanded reconstruction field of view in the target medical image, they are displayed separately.

[0059] It should be noted that when activating the extended reconstruction field imaging function, the display mode of both the extended reconstruction field and the scanning field area is dynamically adjusted according to clinical needs and specific circumstances. The display mode can be configured through factory presets or manual adjustment. Differential display can mark the extended reconstruction field and the scanning field area within the same image, allowing physicians to clearly identify the locations of the two areas. Alternatively, the extended reconstruction field and the scanning field can be displayed separately, not shown in the same image, as described in detail below.

[0060] In the above embodiments, after determining the extended reconstructed field of view (ERV) and the scanned field of view (SVR) of the target medical image located outside the scanned field of view, the ERV and SVR are displayed separately. The image of the scanned field of view provides higher spatial resolution and contrast, suitable for detailed analysis and diagnosis of specific areas, while the image of the ERV provides a more comprehensive field of view, helping doctors to detect lesions or abnormalities over a wider area. Therefore, by distinguishing between the ERV and SVR, the scanned field of view can be differentiated when displaying the target medical image, thereby improving diagnostic efficiency and reducing the misdiagnosis rate.

[0061] In some implementations, please refer to Figure 2 The method may also include the following steps:

[0062] S210, Display the target medical image.

[0063] In this context, the expanded reconstructed field of view and the scanned field of view in the target medical image are displayed in the same way.

[0064] Specifically, during a CT scan, the CT scanner acquires data entirely within the scanning field of view. For the extended reconstruction field of view, data is only partially acquired when the gantry is positioned at a specific angle. By reconstructing the image from the acquired data from the complete scanning field of view and the partial data from the extended reconstruction field of view, a target medical image is obtained that includes both the extended reconstruction field of view and the scanning field of view. In the target medical image, the extended reconstruction field of view and the scanning field of view are displayed in the same way, meaning that they are visually indistinguishable. Therefore, it is necessary to identify and differentiate the extended reconstruction field of view and the scanning field of view in the image according to clinical needs to help physicians accurately interpret the image.

[0065] S220. Upon receiving an operation to differentiate the display area, distinguish between the extended reconstruction field of view and the scanned field of view in the target medical image.

[0066] The differentiation operation can clearly identify and distinguish between the extended reconstruction field of view and the scanned field of view. The differentiation identifier can be an actual identifier or mark added to the image.

[0067] Specifically, upon receiving an operation to differentiate the display area, a distinguishing marker is added to the target medical image to clearly indicate the extended reconstruction field of view and the scanned field of view, thus differentiating the two areas. The distinguishing marker can use different colors, border styles, etc.

[0068] In the above embodiments, a target medical image is displayed. Upon receiving an operation to distinguish the display area, the extended reconstruction field of view and the scanned field of view are distinguished and displayed in the target medical image, thereby improving diagnostic efficiency and reducing the misdiagnosis rate.

[0069] In some implementations, distinguishing between the extended reconstruction field of view and the scanning field of view may include displaying a boundary marker at the boundary between the extended reconstruction field of view and the scanning field of view.

[0070] Specifically, after acquiring the target medical image, to distinguish between the extended reconstruction field of view and the scanning field of view, edge detection algorithms or processing based on the original scanned image information are used to determine the boundary between the extended reconstruction field of view and the scanning field of view in the target medical image. The boundary between the extended reconstruction field of view and the scanning field of view is then clearly marked in the target medical image using demarcation markers. For example, lines, color markings, or other methods can be used to clearly indicate the boundary between the extended reconstruction field of view and the scanning field of view.

[0071] In some implementations, a medical image corresponding to the expanded reconstructed field of view, a medical image corresponding to the scanned field of view, and a target medical image are stored. By comparing and analyzing the medical image corresponding to the expanded reconstructed field of view and the medical image corresponding to the scanned field of view, the boundary between the expanded reconstructed field of view and the scanned field of view can be identified in the target medical image.

[0072] In the above embodiments, a boundary marker is displayed at the junction of the extended reconstruction field of view and the scanning field of view to distinguish between the scanning field of view and the extended reconstruction field of view, thereby improving diagnostic efficiency and reducing the misdiagnosis rate.

[0073] In some implementations, distinguishing between the extended reconstruction field of view and the scanned field of view may include: displaying a first edge marker at the edge contour of the extended reconstruction field of view in the target medical image, and displaying a second edge marker at the edge contour of the scanned field of view in the target medical image, wherein the first edge marker is different from the second edge marker.

[0074] Specifically, in the target medical image, edge detection algorithms or region selection techniques are used to identify and determine the edge contours of the expanded reconstructed visual field and the scanning visual field. Next, a first edge marker is displayed at the edge contour of the expanded reconstructed visual field in the target medical image to clearly indicate this region. A second edge marker is displayed at the edge contour of the scanning visual field in the target medical image to clearly indicate this region. To more clearly distinguish between the scanning and expanded reconstructed visual fields, the first edge marker can be different from the second edge marker; for example, different colors or marker styles can be used. It should be noted that the first and second edge markers are displayed simultaneously in the target medical image, allowing the expanded reconstructed and scanning visual fields to be compared and identified simultaneously, thereby enabling a more accurate understanding and analysis of the examination image content.

[0075] In some implementations, firstly, parameters for two circles—the expanded reconstructed field of view (FRAV) and the scanned field of view (SAV)—are determined. Each circle's parameters include its center coordinates and radius. Assume the center coordinates of the SAV are (x1, y1), and its radius is r1, where r1 is obtained by dividing the SAV obtained from the parameter panel by 2; the center coordinates of the FRAV are (x2, y2), and its radius is r2, where r2 is obtained by dividing the FRAV obtained from the parameter panel by 2. Then, the intersection points of the two circles are calculated using geometric or algebraic methods. If there are zero intersection points between the two circles, the FRAV and the SAV, it indicates that the FRAV completely encompasses the SAV. In this case, circles drawn in the target medical image with their centers and radii respectively serve as edge markers. For an example, please refer to [link to example]. Figure 3 The first edge marker, a green circle 302, is displayed at the edge contour of the expanded reconstructed field of view in the target medical image, and the second edge marker, a red circle 304, is displayed at the edge contour of the scanned field of view in the target medical image.

[0076] If the two circles, the expanded reconstructed field of view (FRLP) and the scanning field of view (SVR), intersect at two points, it indicates that the FRLP and SVR intersect. In this case, the coordinates of the intersection points, A and B, need to be calculated. Starting from intersection point A, the system proceeds along the edge contour of the SVR, passing through each point on the circumference until reaching intersection point B. Then, starting from intersection point B, the system continues along the edge contour of the FRLP, passing through each point on the circumference until returning to intersection point A. The portion from B to A represents the edge contour of the FRLP.

[0077] It should be noted that the method of displaying a first edge marker at the edge contour of the expanded reconstructed field of view in the target medical image and a second edge marker at the edge contour of the scanned field of view in the target medical image is called the marker display method.

[0078] In the above embodiments, a first edge marker is displayed at the edge contour of the expanded reconstructed visual field region in the target medical image, and a second edge marker is displayed at the edge contour of the scanned visual field region in the target medical image. The first edge marker is different from the second edge marker, which can better distinguish between the expanded reconstructed visual field region and the scanned visual field region, thereby making more accurate diagnostic and treatment decisions.

[0079] In some implementations, distinguishing between the expanded reconstruction field of view and the scanned field of view also includes: receiving a preset trigger operation to hide the boundary marker.

[0080] The preset trigger operation can be a predefined event that triggers a specific operation when the event occurs.

[0081] Specifically, after displaying the boundary marker at the intersection of the expanded reconstruction field of view and the scanning field of view, the user performs a preset trigger operation (such as mouse movement, clicking, etc.). The system receives the preset trigger operation and removes the boundary marker from the interface or makes it invisible, hiding the boundary marker displayed on the target medical image.

[0082] In the above implementation, a preset trigger operation is received, and the boundary marker is hidden, providing a more personalized user experience.

[0083] In some implementations, please refer to Figure 4 The method may also include the following steps:

[0084] S410, Receive preset trigger operation.

[0085] S420. If the receiving position of the preset trigger operation is on the target medical image, hide the distinguishing mark.

[0086] S430. After the distinguishing mark is hidden, if a preset trigger operation is received again, the distinguishing mark will be redisplayed.

[0087] Specifically, after displaying the target medical image including the distinguishing markers, the extended reconstructed field of view is displayed differently from the scanned field of view. When a user performs a preset trigger operation (such as mouse movement or clicking), the system receives the preset trigger operation and detects its location. If the location of the received preset trigger operation is on the target medical image, the distinguishing markers are removed from the interface or made invisible, hiding the distinguishing markers displayed on the target medical image. After hiding the distinguishing markers, if the user performs the preset trigger operation again, the system receives the preset trigger operation again and redisplays the distinguishing markers on the target medical image.

[0088] For example, when a user moves the mouse over the target medical image, the distinguishing marker is hidden, and when the user moves the mouse away from the target medical image, the distinguishing marker is displayed again.

[0089] It should be noted that the display method of the indicator can be described as follows: if the preset trigger operation is received and the receiving position of the preset trigger operation is on the target medical image, the differentiation mark is hidden. After the differentiation mark is hidden, if the preset trigger operation is received again, the differentiation mark is re-displayed.

[0090] In the above embodiments, a preset trigger operation is received. If the receiving position of the preset trigger operation is on the target medical image, the differentiation mark is hidden. After the differentiation mark is hidden, if the preset trigger operation is received again, the differentiation mark is redisplayed. The display mode of the expanded reconstruction field of view and the scanning field of view is dynamically adjusted to provide a more personalized user experience.

[0091] In some implementations, displaying the target medical image may include: displaying the image of the scanned field of view in a cropped manner while hiding the image of the expanded reconstructed field of view, provided that the expanded reconstructed field of view is selected to be hidden.

[0092] Specifically, if it is determined that the extended reconstructed field of view (ERV) region in the target medical image needs to be hidden, an image cropping tool is used to extract the ERV region from the target medical image, retaining only the visible scanned field of view (VAV), thereby generating a new examination image for display. This examination image only displays the visible scanned field of view, thus achieving the hiding of the ERV region.

[0093] In one embodiment, please refer to Figure 5 , Figure 5 Only images showing the scanned field of view are displayed, and Figure 5 Circle 502 is the distinguishing marker for the expanded reconstruction field of view, and circle 504 is the distinguishing marker for the scanned field of view.

[0094] In some implementations, edge contour detection is first performed on the extended reconstructed visual field and the scanned visual field to identify their boundaries. The detected edge contours, i.e., the boundaries between the extended reconstructed and scanned visual fields, determine the area to be cropped. If the extended reconstructed visual field is selected to be hidden, the area to be cropped is the extended reconstructed visual field. The extended reconstructed visual field is extracted from the image, while the scanned visual field is preserved, resulting in a new image containing only the scanned visual field, thus achieving the hiding of the extended reconstructed visual field. In other implementations, post-processing can be performed on the cropped image, such as resizing, rotating, or smoothing edges.

[0095] In the above embodiments, when the extended reconstruction field of view is selected to be hidden, the image of the scanned field of view is displayed in a cropped manner, the image of the extended reconstruction field of view is hidden, the scanned field of view is highlighted, and interference is reduced.

[0096] In some implementations, displaying the target medical image may include: displaying an image of the expanded reconstructed field of view in a cropped manner, while hiding the image of the scanned field of view, provided that the scanned field of view is selected to be hidden.

[0097] Specifically, if it is determined that the scanned field of view region in the target medical image needs to be hidden, an image cropping tool is used to extract the image of the scanned field of view region from the target medical image, retaining only the expanded reconstructed field of view region, thereby generating a new examination image for display. This examination image only displays the expanded reconstructed field of view region, thus achieving the hiding of the image of the scanned field of view region.

[0098] In some implementations, please refer to Figure 6a , Figure 6a Only images with expanded reconstructed visual field are displayed, and Figure 6a Circle 602 is the distinguishing marker for the expanded reconstruction field of view, and circle 604 is the distinguishing marker for the scanned field of view.

[0099] In the above embodiments, when the scanned field of view is selected to be hidden, the image of the expanded reconstructed field of view is displayed in a cropped manner, the image of the scanned field of view is hidden, and the expanded reconstructed field of view is highlighted to reduce interference.

[0100] In some implementations, please refer to Figure 6b The target medical image includes a first image corresponding to the expanded reconstructed visual field and a second image corresponding to the scanned visual field. Distinguishing between the expanded reconstructed visual field and the scanned visual field can include the following steps:

[0101] S610, Receive preset trigger operation.

[0102] S620. Show or hide at least one of the first image corresponding to the extended reconstructed field of view and the second image corresponding to the scanned field of view.

[0103] Specifically, when a user performs a preset trigger operation (such as moving the mouse or clicking), the system receives the preset trigger operation and executes the corresponding instruction based on the touch operation, displaying or hiding at least one of the first image corresponding to the expanded reconstructed visual field area and the second image corresponding to the scanned visual field area.

[0104] In the above embodiments, a preset trigger operation is received to display or hide at least one of the first image corresponding to the expanded reconstructed visual field area and the second image corresponding to the scanned visual field area, highlighting the required information and reducing interference.

[0105] In some implementations, the target medical image includes a first image corresponding to the expanded reconstructed field of view and a second image corresponding to the scanned field of view. Distinguishing between the expanded reconstructed field of view and the scanned field of view includes: comparing and displaying the first image and the second image.

[0106] For example, please refer to Figure 7a Displaying target medical images may include:

[0107] S710: Display the expanded reconstructed field of view on the first image, and hide the scanned field of view.

[0108] S720: Display the scanned field of view on the second image, and hide the extended reconstruction field of view.

[0109] Specifically, after reconstructing the image from the collected complete data within the scanned field of view and partial data from the extended reconstructed field of view, resulting in an image containing both the scanned and extended reconstructed field of view regions, it is necessary to display the scanned and extended reconstructed field of view regions separately on the same image. Therefore, the image can be divided into two parts: the first part is called the first image, and the second part is called the second image. In the first image, only the extended reconstructed field of view region is displayed, while the scanned field of view region is not, thus achieving the hiding of the scanned field of view region. In the second image, the scanned field of view region is displayed, while the extended reconstructed field of view region is not, thus achieving the hiding of the extended reconstructed field of view region.

[0110] In some embodiments, a medical image showing a first edge marker at the edge contour of the expanded reconstructed visual field and a second edge marker at the edge contour of the scanned visual field is cropped to extract the expanded reconstructed visual field and retain the scanned visual field to obtain a second image. Alternatively, a first image is obtained by cropping the medical image showing a first edge marker at the edge contour of the expanded reconstructed visual field and a second edge marker at the edge contour of the scanned visual field. The first and second images are displayed on the same image. For example, please refer to [link to example image]. Figure 7b , Figure 7b The rectangle 702 in the image is the second image. Figure 7b The rectangle 704 in the image is the first image.

[0111] In the above embodiments, the extended reconstruction field of view is displayed on the first image while the scanning field of view is hidden, and the scanning field of view is displayed on the second image while the extended reconstruction field of view is hidden. This effectively displays and utilizes the extended reconstruction field of view and the scanning field of view, providing a more comprehensive diagnosis and analysis.

[0112] In some implementations, the method may further include displaying a boundary marker at the boundary between the expanded reconstructed field of view and the scanned field of view.

[0113] Specifically, when hiding the first image corresponding to the reconstructed field of view or the second image corresponding to the scanned field of view, a boundary marker is still displayed at the junction of the expanded reconstructed field of view and the scanned field of view.

[0114] In some implementations, please refer to Figure 5 When the first image corresponding to the reconstructed field of view is hidden, a boundary marker 504 is displayed at the junction of the expanded reconstructed field of view and the scanned field of view.

[0115] In some other embodiments, referring to FIG6, when the second image corresponding to the scanned field of view is hidden, a boundary marker 604 is displayed at the junction of the expanded reconstructed field of view and the scanned field of view.

[0116] In some embodiments, the method may further include: adjusting the display information of the first image and the second image independently.

[0117] The displayed information can be the visual presentation effect of the image.

[0118] Specifically, the user can adjust parameters such as brightness, contrast, and display angle of the first image, and display the image according to the adjusted parameters to determine the display information of the first image. Similarly, the user can adjust parameters such as brightness, contrast, and display angle of the second image, and display the image according to the adjusted parameters to determine the display information of the first image.

[0119] For example, the window width and window level of the image of the scanned field of view and the image of the expanded and reconstructed field of view can be adjusted independently of each other.

[0120] Specifically, window width and window level are key parameters used to adjust the grayscale display range and brightness distribution. Window width determines image contrast; a larger window width reduces contrast, suitable for displaying structures with a wide grayscale range, while a smaller window width enhances contrast, suitable for highlighting details within a specific grayscale range. Window level is the center position of the window width; adjusting the window level changes the overall brightness of the image, helping to highlight tissues or structures of interest. Different window widths and levels can be set independently for different visual fields. This means that the window width and window level of the scanned visual field can be adjusted independently, as can the window width and window level of the expanded reconstructed visual field, without interference. By independently adjusting the window width and window level for each region, the image display effect can be optimized for better observation of specific anatomical structures or pathological features.

[0121] In the above embodiments, the window width and window level of the image of the scanned field of view and the image of the expanded and reconstructed field of view can be adjusted independently to adapt to different scenarios and be flexibly adjusted.

[0122] In some implementations, please refer to Figure 8 Different scanned areas correspond to different display methods; the method also includes the following steps:

[0123] S810. Determine the scanning area corresponding to the target medical image.

[0124] S820: Based on the scanned area, determine the distinguishing display method between the extended reconstruction field of view and the scanned field of view.

[0125] Specifically, after enabling the extended reconstruction field of view imaging function (which can be controlled via a switch), different display protocols and preset parameters are designed and adjusted for each scanning site according to different scanning locations and specific needs. First, by determining the scanning site corresponding to the target medical image, an appropriate distinguishing display method is selected. The complete data within the scanning field of view and partial data of the extended reconstruction field of view region acquired for the current scanning site are reconstructed to obtain an image including both the extended reconstruction field of view region and the scanning field of view region. The extended reconstruction field of view region and the scanning field of view region are then displayed separately according to the preset distinguishing display method corresponding to the current scanning site.

[0126] For example, preset display modes are configured with different display options based on the scanned area. The mapping between scanned areas and preset display modes can be configured in the parameter panel or system settings interface. By default, the heart region is set to the display mode of a visible / hidden marker indicator. The abdominal region is set to the display mode of a marked area. No preset display mode is configured for the head region. In clinical applications, if it is necessary to switch preset display modes, the operator can manually adjust the preset display mode for the scanned area, changing the default display mode to another format. If the adjusted preset display mode meets clinical needs, it can be saved and the configuration shared for use in other clinical applications.

[0127] In the above embodiments, the scanning site corresponding to the target medical image is determined, and based on the scanning site, the display method for distinguishing between the expanded reconstruction field of view and the scanning field of view is determined, providing a more reliable basis for clinical diagnosis and treatment.

[0128] In some implementations, determining the scanning site corresponding to the target medical image may include:

[0129] Obtain the scanning protocol corresponding to the target medical image, and determine the scanning site based on the scanning protocol.

[0130] The scanning protocol includes information about the area being scanned.

[0131] Specifically, this involves acquiring the scanning protocol for the target medical image from the medical imaging system. The scanning protocol typically includes specific scanning parameters and operating procedures to guide medical imaging technicians in performing the scan. The scanning protocol is then parsed to identify the scanned areas covered by the target medical image.

[0132] In some implementations, determining the scanning site corresponding to the target medical image may include:

[0133] The target medical image is input into the site recognition model for identification to determine the scanning site.

[0134] Specifically, the target medical image is used as input to the input site recognition model. The input site recognition model is used to identify and process the target medical image in order to determine the scanned sites included in the target medical image.

[0135] This specification provides a medical image display device 900. Please refer to [link / reference]. Figure 9 The medical image processing device 900 includes: a field of view region determination module 910 and a field of view region differentiation display module 920.

[0136] The field of view determination module 910 is used to determine the extended reconstruction field of view and the scanning field of view of the target medical image, wherein the extended reconstruction field of view is a reconstruction area located outside the scanning field of view.

[0137] The field of view region differentiation display module 920 is used to differentiate and display the extended reconstructed field of view region and the scanned field of view region.

[0138] For a detailed description of the medical image display device, please refer to the description of the medical image display method above, which will not be repeated here.

[0139] This specification provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method in any of the above embodiments.

[0140] One embodiment of this specification provides a computer program product including instructions that, when executed by a processor of a computer device, enable the computer device to perform the steps of the method described in any of the above embodiments.

[0141] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Furthermore, computer-readable media can even be paper or other suitable media on which programs can be printed, because programs can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpreting, or otherwise processing as necessary, and then stored in computer memory.

Claims

1. A method for displaying medical images, characterized in that, The method includes: The extended reconstruction field of view and the scanning field of view of the target medical image are determined. The extended reconstruction field of view is the reconstruction area located outside the scanning field of view. The scanning field of view is completely covered by the X-ray when the gantry rotates during scanning. Data of the scanning field of view can be acquired by the gantry at any angle. The extended reconstruction field of view is only covered by the X-ray when the gantry is at a specific angle. The expanded reconstructed field of view and the scanned field of view are displayed separately. The method further includes: Determine the scanning site corresponding to the target medical image; Based on the scanned area, the distinction display method between the extended reconstruction field of view and the scanned field of view is determined according to a pre-set distinction display method corresponding to the scanned area, with different distinction display methods corresponding to different scanned areas.

2. The method according to claim 1, characterized in that, Distinguishing between the expanded reconstructed field of view and the scanned field of view includes: A boundary marker is displayed at the intersection of the extended reconstruction field of view and the scanned field of view.

3. The method according to claim 2, characterized in that, Distinguishing between the expanded reconstructed field of view and the scanned field of view also includes: Receive a preset trigger operation to hide the boundary marker.

4. The method according to claim 1, characterized in that, The target medical image includes a first image corresponding to the expanded reconstructed visual field region and a second image corresponding to the scanned visual field region. Distinguishing between the expanded reconstructed visual field region and the scanned visual field region includes: Receive preset trigger operations; Show or hide at least one of the first image corresponding to the expanded reconstructed field of view and the second image corresponding to the scanned field of view.

5. The method according to claim 4, characterized in that, Also includes: A boundary marker is displayed at the intersection of the extended reconstruction field of view and the scanned field of view.

6. The method according to claim 1, characterized in that, The target medical image includes a first image corresponding to the expanded reconstructed visual field region and a second image corresponding to the scanned visual field region. Distinguishing between the expanded reconstructed visual field region and the scanned visual field region includes: The first image and the second image are displayed side-by-side.

7. The method according to claim 6, characterized in that, Also includes: The display information of the first image and the second image are adjusted independently of each other.

8. The method according to claim 1, characterized in that, Determining the scanning site corresponding to the target medical image includes: Obtain the scanning protocol corresponding to the target medical image, wherein the scanning protocol includes scanning site information; Based on the scanning protocol, the scanning area is determined; or, The target medical image is input into a site recognition model for identification to determine the scanned site.

9. A medical image display device, characterized in that, The apparatus for implementing the method of any one of claims 1 to 8, comprising: The field of view determination module is used to determine the extended reconstruction field of view and the scanning field of view of the target medical image, wherein the extended reconstruction field of view is the reconstruction area located outside the scanning field of view. The field of view region differentiation display module is used to differentiate and display the extended reconstructed field of view region and the scanned field of view region.

10. A medical imaging device, comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 8.

11. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 8.

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