Reconstruction method, display method, equipment and system of medical image
By generating only parameter description files in medical imaging equipment, the problem of equipment stress during imaging parameter adjustment is solved, and more efficient data transmission and storage management are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NEUSOFT MEDICAL SYST CO LTD
- Filing Date
- 2025-11-28
- Publication Date
- 2026-05-05
AI Technical Summary
Existing medical imaging equipment requires the generation of multiple medical image files when adjusting imaging parameters, resulting in excessive imaging pressure on the equipment, especially with low data transmission efficiency when network bandwidth is limited.
By obtaining the second imaging parameters and displaying the parameters differently from the first imaging parameters, only the parameter description file is generated, reducing the amount of data transmission between the medical imaging equipment and the display device, and only transmitting the necessary parameter description file and medical image file.
It effectively reduces the imaging pressure on medical imaging equipment, reduces network transmission pressure, saves storage space, and improves data transmission efficiency.
Smart Images
Figure CN121982164A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of medical imaging technology, specifically relating to a method for reconstructing medical images, a method for displaying medical images, an apparatus, and a system. Background Technology
[0002] Medical imaging equipment (such as computed tomography (CT) scanners) scan a subject and acquire the raw scan data. Based on this raw scan data, they reconstruct the image to obtain a medical image file, which is then sent to a display device. The display device can then display the medical image based on this file to assist doctors in diagnosis. Summary of the Invention
[0003] This application provides a method for reconstructing medical images, a method for displaying medical images, an apparatus, and a system. The technical solution is as follows: In a first aspect, this application provides a method for reconstructing a medical image, the method comprising: Medical image files are reconstructed based on the first imaging parameters; Obtain the second imaging parameters, and if it is determined that the second imaging parameters are different from the first imaging parameters in terms of only the parameter values of the displayed parameters, generate only a parameter description file. The parameter description file includes: the parameter values of the displayed parameters in the second imaging parameters, and the identifier of the medical image file.
[0004] Optionally, the display parameters include at least one of the following: window width, window level, scaling factor, translation distance, rotation angle, and flip direction.
[0005] Optionally, before generating only the parameter description file when it is determined that the second imaging parameter and the first imaging parameter differ only in the parameter values displayed, the method further includes: Obtain the similarities and differences between the parameter values of each parameter in the first imaging parameters and the parameter values of the parameters in the second imaging parameters; If all the different parameter values belong to the displayed parameters, it is determined that the second imaging parameter and the first imaging parameter are different only in the displayed parameter values.
[0006] Optionally, the method further includes: The medical image file and the parameter description file are transmitted to the PACS so that the PACS can transmit the medical image file and the parameter description file to the display device.
[0007] Optionally, the method further includes: Based on the original scan data and third imaging parameters, a thick-slice image sequence is reconstructed and displayed; At least the reconstruction and acquisition parameters in the third imaging parameters are adjusted to obtain the first imaging parameters.
[0008] Optionally, the reconstruction and acquisition parameters include at least one of the following: layer thickness, imaging field of view, imaging center position, convolution kernel, image interval, and image resolution.
[0009] Secondly, this application provides a method for displaying medical images, the method comprising: Load the parameter description file to obtain the identifier and display parameter values of the medical image file; The medical image file is obtained based on its identifier; Based on the medical image file, the medical image is displayed according to the parameter values of the display parameters.
[0010] Thirdly, this application provides a medical image reconstruction apparatus, the apparatus comprising: The reconstruction module is used to reconstruct medical image files based on the first imaging parameters; The determination module is used to obtain the second imaging parameters, and if it is determined that the second imaging parameters are different from the first imaging parameters in terms of only the parameter values of the displayed parameters, it generates only a parameter description file. The parameter description file includes: the parameter values of the displayed parameters in the second imaging parameters, and the identifier of the medical image file.
[0011] Fourthly, this application provides another display device for medical images, the device comprising: The loading module is used to load parameter description files to obtain the identification and display parameter values of medical image files; The acquisition module is used to acquire the medical image file based on its identifier; The display module is used to display medical images based on the medical image file and according to the parameter values of the display parameters.
[0012] Fifthly, this application provides a medical imaging device, including: a processor and a memory, wherein the memory stores a program or instructions executable on the processor, and the program or instructions, when executed by the processor, implement the method as described in the first aspect.
[0013] In a sixth aspect, this application provides a display device, comprising: a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the method as described in the second aspect.
[0014] In a seventh aspect, this application provides a computer-readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the method described in the first aspect or the method described in the second aspect.
[0015] Eighthly, this application provides a computer program product that, when executed by a processor of a vehicle or a cloud server, implements the method described in the first aspect or the method described in the second aspect.
[0016] This application provides a method, display method, device, and system for reconstructing medical images. The method reconstructs a medical image file based on first imaging parameters, then obtains second imaging parameters. If the second imaging parameters differ from the first imaging parameters only in the value of the displayed parameters, only a parameter description file is generated. Since only a parameter description file is generated when the second imaging parameters differ from the first imaging parameters only in the value of the displayed parameters, instead of generating multiple medical image files under the second imaging parameters, the imaging burden on medical imaging equipment can be effectively reduced. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a medical image display system provided in an embodiment of this application; Figure 2 A flowchart illustrating a method for reconstructing a medical image, as provided in an embodiment of this application; Figure 3 A flowchart illustrating a method for reconstructing and displaying a medical image, provided in an embodiment of this application; Figure 4 This application provides a schematic diagram of the structure of a DICOM file. Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation
[0018] The embodiments of this application are described in detail below. Examples of these embodiments are shown 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 this application, and should not be construed as limiting this application.
[0019] Figure 1 This is a schematic diagram of the structure of a medical image display system provided in an embodiment of this application. See also... Figure 1 The display system includes a medical imaging device 10 and a display device 20. The medical imaging device 10 and the display device 20 are connected by a communication link.
[0020] Optionally, the medical imaging device 10 can be a CT scanner, a magnetic resonance imaging (MRI) device, or an angiography device, etc. The display device 20 can be a computer monitor or a medical imaging monitor, etc.
[0021] Optionally, the display system may also include a picture archiving and communication system (PACS). The PACS is communicatively connected to both the medical imaging device 10 and the display device 20.
[0022] It is understandable that each pair of devices in the medical imaging device 10, display device 20, and PACS can communicate using the digital imaging and communications in medicine (DICOM) protocol.
[0023] This application provides a method for reconstructing medical images, which is applied to medical imaging equipment, such as... Figure 1 The medical imaging device 10 is shown. See also... Figure 2 The method includes: Step 201: Reconstruct the medical image file based on the first imaging parameters.
[0024] The medical image file can be one or more, for example, multiple. Each medical image file can be used to display one medical image. Each medical image file includes: a file header and a dataset. The dataset includes metadata and pixel data. The metadata may include: basic parameters of the scanned object, examination parameters, image sequence parameters, and display parameters.
[0025] Basic parameters include: identifier (ID), name, age, and gender. Examination parameters may include: examination date, examination type (e.g., plain CT scan), and examination site. Image sequence parameters may include: the identifier of the medical image file. Each medical image file's identifier is used to uniquely identify the medical image file among multiple medical image files. Each medical image file's identifier includes: the sequence identifier (uniqueidentifier, UID) of the image file sequence to which the medical image file belongs, and the unique identifier of the medical image file within its respective image file sequence. This sequence identifier can be the same as the sequence identifier of the corresponding medical image sequence.
[0026] In this embodiment of the application, the medical imaging device can pre-acquire the original scanning data of the scanned object, and then reconstruct multiple medical image files based on the first imaging parameters and the original scanning data.
[0027] Step 202: Obtain the second imaging parameters.
[0028] In one alternative implementation, the medical imaging device adjusts the first imaging parameter in response to an adjustment command for the first imaging parameter to obtain the second imaging parameter.
[0029] In this embodiment, the medical imaging device may include a microphone. In this case, the adjustment command may include at least a voice adjustment command. The voice adjustment command may be issued by a staff member and may carry the parameter to be adjusted in the first imaging parameters, as well as the adjusted parameter value. For example, the voice adjustment command may be to set parameter A to XX.
[0030] Alternatively, the medical imaging device may include a touchscreen. In this case, the adjustment command can be triggered by a touch operation on the touchscreen.
[0031] In another alternative implementation, the medical imaging device can directly acquire the second imaging parameters. For example, staff can directly input the second imaging parameters on a touchscreen, and the medical imaging device can correspondingly input the second imaging parameters to acquire them.
[0032] Step 203: If it is determined that the second imaging parameters and the first imaging parameters are different only in the parameter values of the displayed parameters, only the parameter description file is generated.
[0033] The parameter description file includes: the parameter values of the display parameters in the second imaging parameters, and the identifier of the medical image file. This identifier allows the display device to quickly locate the target data required to display the second medical image. This target data may include: pixel data, basic parameters of the scanned object, and examination parameters, etc.
[0034] Display parameters may include at least one of the following: window width (WW), window level (WL), scaling factor, translation distance, rotation angle, and flip direction. The flip direction includes both horizontal and vertical flip directions.
[0035] In summary, this application provides a method for reconstructing medical images. This method can reconstruct medical image files based on first imaging parameters, then obtain second imaging parameters, and generate only a parameter description file when the second imaging parameters differ from the first imaging parameters only in the displayed parameter values. Since only a parameter description file is generated when the second imaging parameters differ from the first imaging parameters only in the displayed parameter values, instead of generating multiple medical image files under the second imaging parameters, the imaging burden on medical imaging equipment can be effectively reduced.
[0036] This application uses a CT scanner as the medical imaging device, the second imaging parameters are obtained by adjusting the first imaging parameters, and a display device displays a first and a second medical image as an example to exemplify the medical image reconstruction and display methods provided in this application. The medical image reconstruction method refers to a method by which a medical imaging device generates a medical image based on acquired raw scan data. The display method refers to a method by which a display device visualizes the medical image. See also... Figure 3 The method may include: Step 301: The medical imaging equipment scans the object and, during the scanning process, reconstructs and displays a thick-slice image sequence based on the original scan data and the third imaging parameters.
[0037] In this embodiment, the medical imaging device can load a scanning protocol for the examination site (such as the lungs) of the scanned object to scan the examination site and obtain the raw scan data of the examination site. During this process, the medical imaging device can perform image reconstruction based on the preset third imaging parameters and the raw scan data to reconstruct a thick-slice image sequence and display the thick-slice image sequence.
[0038] The third imaging parameters include reconstruction and acquisition parameters and display parameters. The reconstruction and acquisition parameters may include at least one of the following: slice thickness, imaging field of view, imaging center position, convolution kernel, image spacing, and image resolution (also known as image matrix). For example, the reconstruction and acquisition parameters may include: slice thickness, imaging field of view, and image resolution. The display parameters may include at least one of the following: window width, window level, scaling factor, translation distance, rotation angle, and flip direction. The flip direction may include: horizontal flip direction and vertical flip direction.
[0039] The slice thickness in the third imaging parameter can be greater than the slice thickness threshold pre-stored by the medical imaging equipment. This reduces the amount of raw scan data required to reconstruct thick-slice image sequences, allowing for rapid reconstruction of these sequences for physician review. This facilitates real-time verification of image quality, determination of the accuracy of the scanning range, and identification of the approximate location of regions of interest (such as lesions), providing a basis for subsequent adjustments to the imaging parameters.
[0040] Window width refers to the range of tissue density values (such as CT values) displayed in an image, i.e., the width of the observed density interval. A wider window width encompasses a larger range of CT values, resulting in lower image contrast. Window level refers to the center value of the window width range (such as the midpoint CT value). Window level controls image brightness and the focus of observation. A higher window level results in a darker overall image; high window levels are used to emphasize high-density tissues (such as bone). A lower window level results in a brighter overall image; low window levels are used to emphasize low-density tissues (such as fat and air).
[0041] The translation distance includes the translation distance along the X-axis and the translation distance along the Y-axis. The X-axis is parallel to the pixel row direction of the medical image, and the Y-axis is parallel to the pixel column direction of the medical image. Translation allows the region of interest in the image to be moved to the center of the field of view.
[0042] In this embodiment, the medical imaging device can further acquire multiple thick-layer image files corresponding to the thick-layer image sequence, and then send the multiple thick-layer image files to a display device. This allows the display device to display a third medical image, which is a thick-layer image, based on the multiple thick-layer image files.
[0043] Step 302: The medical imaging equipment adjusts at least the reconstruction and acquisition parameters of the third imaging parameter to obtain the first imaging parameter.
[0044] In some alternative implementations: the medical imaging device can adjust the slice thickness of the third imaging parameter to obtain the first imaging parameter. The slice thickness of the first imaging parameter can be less than the slice thickness of the third imaging parameter.
[0045] Due to their large slice thickness, thick-slice image sequences lack sufficient detail resolution within each slice, making it difficult for doctors to provide more accurate image information for determining the nature of lesions. Conversely, smaller slice thickness results in stronger detail resolution and higher overall image resolution. Therefore, medical imaging equipment can at least adjust the slice thickness of the third imaging parameter, i.e., reduce the slice thickness of the third imaging parameter to obtain the first imaging parameter.
[0046] In some alternative implementations, the medical imaging device can adjust the imaging field of view of the third imaging parameter to obtain the first imaging parameter. The imaging field of view of the first imaging parameter can be smaller than that of the third imaging parameter. Reducing the imaging field of view can decrease the pixel size, thereby improving planar resolution.
[0047] The planar resolution of medical images is determined by pixel size. Smaller pixel sizes mean more pixels per unit area, resulting in clearer resolution of minute structures (such as the edges of lung nodules). Without changing the overall image resolution, reducing the imaging field of view is equivalent to compressing the same number of pixels into a smaller area, thus reducing the size of each pixel and improving image detail. Therefore, medical imaging equipment can adjust the imaging field of view of at least the third imaging parameter—that is, reduce the field of view of the third imaging parameter—to obtain the first imaging parameter.
[0048] In some alternative implementations, the medical imaging device can adjust the image resolution of the third imaging parameter to obtain the first imaging parameter. The image resolution of the first imaging parameter can be greater than that of the third imaging parameter.
[0049] The planar spatial resolution of medical images is inversely proportional to pixel size. With the imaging field of view unchanged, increasing the image resolution means using more pixels to fill the same area, thus reducing the physical size of each pixel and improving the planar spatial resolution of the image. Therefore, medical imaging equipment can at least adjust the image resolution of the third imaging parameter, i.e., increase the image resolution of the third imaging parameter to obtain the first imaging parameter.
[0050] The first imaging parameters are obtained by adjusting the slice thickness, the imaging field of view, or the image resolution. This ensures that the first medical image obtained from multiple medical image files reconstructed based on the first imaging parameters provides relatively accurate image data.
[0051] It is understandable that the way the medical imaging equipment adjusts the third imaging parameters in step 302 is similar to that in step 202, and will not be described again here.
[0052] Step 303: The medical imaging equipment reconstructs the medical image file based on the original scan data and the first imaging parameters.
[0053] There can be multiple medical image files. Each medical image file is a DICOM file, and as follows: Figure 4 As shown, the medical image file may include a file header and a dataset. The dataset includes metadata and pixel data. The metadata includes basic parameters of the scanned object, examination parameters, image sequence parameters, and display parameters.
[0054] The basic parameters include: the scanned object's ID, name, age, and gender. Examination parameters may include: examination date, examination type, and examination site. Image sequence parameters may include: the sequence UID of the image file sequence to which the medical image file belongs, and the unique identifier of the medical image file within its respective image file sequence.
[0055] In this embodiment, the medical imaging device can acquire projection data based on the original scan data, and then convert the projection data into pixel data, i.e., a tomographic pixel matrix containing CT values, based on the first imaging parameters and a preset image reconstruction algorithm. Then, the medical imaging device can acquire the corresponding medical image file based on this pixel data.
[0056] Specifically, medical imaging equipment can acquire the registration information of the scanned object and obtain basic and examination parameters based on this registration information. This registration information may include: name, age, gender, examination site, and examination type. The medical imaging equipment can obtain display parameters from the first imaging parameters and can assign a sequence UID to the image file sequence to which the medical image file belongs, as well as assign a unique identifier to each medical image file within that image file sequence, thus obtaining the identifier for each medical image file. Subsequently, the medical imaging equipment can encapsulate the basic parameters, examination parameters, image sequence parameters, display parameters, and pixel data into the body of a DICOM file, and then add a file header to this body to obtain a DICOM format medical image file.
[0057] Step 304: The medical imaging device responds to the adjustment command for the first imaging parameter, adjusts the first imaging parameter, and obtains the second imaging parameter.
[0058] Imaging parameters include display parameters and their values. A set of display parameters and their values generally only applies to tissues of a specific density in the scanned area (e.g., a lung window corresponds to low-density lung tissue, and a bone window corresponds to high-density bone). Accordingly, the medical images displayed in multiple medical image files reconstructed based on these imaging parameters can only clearly present one type of tissue. However, doctors may also need to know the specific conditions of other tissues in the scanned area. Therefore, it is necessary to trigger the medical imaging equipment to adjust the parameter values of the display parameters in the first imaging parameters to obtain a second imaging parameter that differs from the first imaging parameter.
[0059] It is understandable that the way the medical imaging equipment adjusts the first imaging parameters in step 304 is similar to that in step 202, and will not be described again here.
[0060] Step 305: The medical imaging equipment obtains the similarities and differences between the parameter values of each parameter in the first imaging parameters and the parameter values of the same parameter in the second imaging parameters.
[0061] After obtaining the second imaging parameters, the medical imaging equipment can compare the values of the same parameter in the first and second imaging parameters to obtain a comparison result. This comparison result is used to reflect the similarities and differences in the parameter values.
[0062] Step 306: When all different parameter values belong to the displayed parameters, the medical imaging equipment determines that the second imaging parameter and the first imaging parameter are different only in the displayed parameter values.
[0063] After acquiring the differences in the values of all parameters, medical imaging equipment can filter out the parameters with different values. If the medical imaging equipment determines that all parameters with different values are display parameters, then the medical imaging equipment can determine that the second imaging parameter differs from the first imaging parameter only in the value of the display parameter.
[0064] Step 307: The medical imaging equipment only generates parameter description files.
[0065] The parameter description file includes: the parameter values of the display parameters in the second imaging parameters, and identifiers for multiple medical image files. These identifiers allow the display device to quickly locate the target data required to display the second medical image when needed.
[0066] As can be seen, this parameter description file does not contain pixel data, but only information pointing to multiple medical image files (i.e., the identifiers of multiple medical image files) and corresponding display parameters. Therefore, the data size of this parameter description file is small, usually only between tens of kilobytes (KB) and hundreds of KB.
[0067] Optionally, the process by which the medical imaging device generates a parameter description file based on the display parameters can be as follows: convert each display parameter and its value into a standardized format and unify the unit and encoding, then associate it with the corresponding sequence UID, and then encapsulate it into a storable and transmittable text or binary file according to a unique naming rule to obtain the parameter description file.
[0068] Step 308: The medical imaging equipment transmits the medical image file and parameter description file to the display device.
[0069] Since only the medical image file and parameter description file under the first imaging parameters need to be sent to the display device, and the medical image file under the second imaging parameters does not need to be sent, the amount of data transmission between the medical imaging device and the display device can be reduced, thereby alleviating the network transmission pressure between the medical imaging device and the display device. Furthermore, it can reduce the data transmission time when network bandwidth is limited.
[0070] In one alternative embodiment, the medical imaging device can directly transmit medical image files and parameter description files to the display device.
[0071] In another alternative embodiment, the medical imaging device can transmit medical image files and parameter description files to the PACS, so that the PACS can transmit the medical image files and parameter description files to the display device.
[0072] Specifically, medical imaging equipment can transmit medical image files and parameter description files to a PACS system. After parsing, the PACS system can store the images in a database and then transmit the images and parameter description files to a display device.
[0073] When the second imaging parameters differ from the first imaging parameters only in the displayed parameter values, only the medical image file and parameter description file need to be sent to the PACS. Compared to methods that require sending medical image files under the first imaging parameters and those under the second imaging parameters, the method provided in this application reduces the amount of data sent to the PACS, thereby reducing network bandwidth consumption and avoiding network congestion caused by large data transmissions. Furthermore, it reduces the amount of data the PACS needs to store, saving PACS storage space.
[0074] Step 309: The display device displays a first medical image based on the medical image file and according to the display parameters in the first imaging parameters, and displays a second medical image based on the medical image file and the parameter description file and according to the display parameters in the second imaging parameters.
[0075] Since medical image files include not only pixel data but also display parameters in the first imaging parameters, the display device can directly obtain the target data and the display parameters from the medical image file and display the first medical image according to the display parameters.
[0076] Since the first and second imaging parameters differ only in their display parameter values, and the display parameters only change the way pixel data is presented without altering the pixel data itself, the second medical image can use the target data of the first medical image; that is, the second and first medical images can share the same target data. Therefore, when the second medical image needs to be displayed, the display device directly extracts the target data from the medical image file corresponding to the first medical image and displays the second medical image based on this target data and the display parameters in the second imaging parameters.
[0077] The process by which the display device displays the first medical image based on each medical image file includes: the display device can parse the target data and the parameter values of the display parameters in the first imaging parameters from the medical image file, and display the first medical image based on the target data and the parameter values of the display parameters in the first imaging parameters.
[0078] The process of displaying the second medical image according to the display parameters in the second imaging parameters may include: Step A1: Load the parameter description file to obtain the identifier and display parameter values of the medical image file.
[0079] The display device can read and parse the parameter description file to obtain the parameter values of the display parameters and the identifiers of multiple medical image files in the parameter description file.
[0080] Step A2: Obtain the medical image file based on its identifier.
[0081] The display device can quickly locate a medical image file from all stored medical image files based on the identifier of the medical image file in the parameter description file.
[0082] Step A3: Based on the medical image file, display the medical image according to the parameter values of the display parameters.
[0083] The display device can display a second medical image based on the target data in each medical image file, according to the parameter values of the display parameters in the second imaging parameters.
[0084] The process by which the display device displays a second medical image according to the display parameters in the second imaging parameters for each medical image file includes: the display device can parse the target data in the medical image file and display the second medical image based on the target data and the display parameters in the second imaging parameters.
[0085] Understandably, the pixel data in a target medical image file obtained by a CT scanner includes the CT values of multiple pixels. For each medical image file, the display device can first select at least two target pixels' CT values based on the window width in the first (or second) imaging parameters and the pixel data of the medical image file. Furthermore, the display device can obtain the mapping relationship between CT values and grayscale values based on the window level in the first (or second) imaging parameters. The display device can then determine the grayscale value of each target pixel based on this mapping relationship and the CT values of each target pixel to display a first medical image (or a second medical image). The grayscale value can be greater than or equal to 0 and less than or equal to 255.
[0086] In this embodiment, if the examination site is the lungs, the first medical image can be one of the following: a lung window image, a mediastinal window image, a soft tissue window image, and a vascular window image. The second medical image can be another of the following: a lung window image, a mediastinal window image, a soft tissue window image, and a vascular window image.
[0087] For example, if the first medical image is a lung window image, the target pixel can be a pixel with a CT value greater than 1500 HU and less than 2000 HU. If the second medical image is a mediastinal window image, the target pixel can be a pixel with a CT value greater than 250 HU and less than 300 HU.
[0088] It is understood that the order of steps in the medical image reconstruction and display methods provided in the embodiments of this application can be appropriately adjusted, and steps can be added or removed as appropriate. For example, steps 301 and 302 can be deleted as appropriate; or step 308 can also be deleted as appropriate. Any variations that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application, and therefore will not be elaborated further.
[0089] In summary, this application provides a method for reconstructing medical images. A medical imaging device can reconstruct a medical image file based on first imaging parameters, then obtain second imaging parameters, and, if the second imaging parameters differ from the first imaging parameters only in the displayed parameter values, only a parameter description file is generated. Since only a parameter description file is generated when the second imaging parameters differ from the first imaging parameters only in the displayed parameter values, instead of generating a medical image file based on the second imaging parameters, the imaging burden on the medical imaging device can be effectively reduced.
[0090] This application provides a medical image display device, which can be used to perform the method applied to medical imaging equipment provided in the above-described method embodiments. The device includes: The reconstruction module is used to reconstruct medical image files based on the first imaging parameters; The determination module is used to obtain the second imaging parameters, and if the second imaging parameters are different from the first imaging parameters in terms of only the parameter values of the displayed parameters, it generates only a parameter description file. The parameter description file includes: the parameter values of the displayed parameters in the second imaging parameters, and the identifier of the medical image file.
[0091] This application provides another medical image display device, which can be used to perform the method applied to a display device provided in the above-described method embodiments. The device includes: The loading module is used to load parameter description files to obtain the identification and display parameter values of medical image files; The acquisition module is used to acquire medical image files based on their identifiers. The display module is used to display medical images based on medical image files and according to the parameter values of the display parameters.
[0092] This application provides an electronic device, which can be a medical imaging device or a display device. See also... Figure 5 The electronic device 100 includes a processor 110. In the case of a medical imaging device, the processor 110 is used for: Medical image files are reconstructed based on the first imaging parameters; Obtain the second imaging parameters, and if it is determined that the second imaging parameters are different from the first imaging parameters only in terms of the parameter values of the displayed parameters, generate only a parameter description file. The parameter description file includes: the parameter values of the displayed parameters in the second imaging parameters, and the identifier of the medical image file.
[0093] Optionally, the display parameters include at least one of the following: window width, window level, scaling factor, pan distance, rotation angle, and flip direction.
[0094] Optionally, the processor 110 is also used for: Obtain the differences between the parameter values of each parameter in the first imaging parameters and the parameter values in the second imaging parameters; When all the different parameter values belong to the displayed parameters, it is determined that the second imaging parameter and the first imaging parameter are different only in the value of the displayed parameter.
[0095] Optionally, the processor 110 is also used for: The medical image files and parametric description files are transferred to the PACS so that the PACS can transfer the medical image files and parametric description files to the display device.
[0096] Optionally, the processor 110 is also used for: Based on the original scan data and third imaging parameters, a thick-slice image sequence is reconstructed and displayed; At least the reconstruction and acquisition parameters in the third imaging parameters are adjusted to obtain the first imaging parameters.
[0097] Optionally, the reconstruction and acquisition parameters include at least one of slice thickness, imaging field of view, and image resolution.
[0098] In summary, this application provides a medical imaging device that can reconstruct medical image files based on first imaging parameters, then obtain second imaging parameters, and generate only a parameter description file when the second imaging parameters differ from the first imaging parameters only in the displayed parameter values. Since only a parameter description file is generated when the second imaging parameters differ from the first imaging parameters only in the displayed parameter values, instead of generating multiple medical image files under the second imaging parameters, the imaging burden on the medical imaging device can be effectively reduced.
[0099] When the electronic device is a display device, the processor 110 is used for: Load the parameter description file to obtain the identifier and display parameter values of the medical image file; Retrieve medical image files based on their identifiers; Based on medical image files, display medical images according to the parameter values of the display parameters.
[0100] In summary, this application provides a display device capable of loading a parameter description file to obtain the identifier of a medical image file and the parameter values of display parameters. Based on the identifier of the medical image file, the device retrieves the medical image file and then displays the medical image according to the parameter values of the display parameters. Since only the parameter values of the display parameters differ from the second imaging parameters to the first imaging parameters, only a parameter description file is generated, eliminating the need to generate multiple medical image files under the second imaging parameters, the amount of data transmission between the medical imaging device and the display device can be reduced, thereby alleviating the network transmission pressure between them.
[0101] Please continue reading Figure 5 The electronic device 100 may further include a memory 130. The processor 110 and the memory 130 are connected, for example, via a bus 120. Optionally, the electronic device 100 may also include a transceiver 140. It should be noted that in practical applications, the transceiver 140 is not limited to one, and the structure of the electronic device 100 does not constitute a limitation on the embodiments of this application.
[0102] Processor 110 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 110 may also be a combination that implements computing functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.
[0103] Bus 120 may include a pathway for transmitting information between the aforementioned components. Bus 120 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. Bus 120 may be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 5 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.
[0104] The memory 130 is used to store a computer program corresponding to the medical image reconstruction method of the above embodiments of this application. The computer program is controlled and executed by the processor 110. The processor 110 is used to execute the computer program stored in the memory 130 to implement the content shown in the foregoing method embodiments. Figure 5 The electronic device 100 shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.
[0105] This application provides a computer-readable storage medium storing a computer program thereon. When executed by a processor, the computer program implements the medical image reconstruction method provided in the above-described method embodiments. For example, Figure 2 or Figure 3 The method shown.
[0106] This application provides a computer program product, which includes a computer program or computer instructions. When executed by a processor, the computer program or computer instructions implement the medical image reconstruction method provided in the above-described method embodiments. For example, Figure 2 or Figure 3 The method shown.
[0107] 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 specifically implemented 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). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.
[0108] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.
[0109] In the description of this specification, the references to terms such as "optional," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0110] Furthermore, the terms "first," "second," etc., used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance, or implicitly specifying the number of technical features indicated in this embodiment. Therefore, features defined with terms such as "first" and "second" in the embodiments of this application can explicitly or implicitly indicate that the embodiment includes at least one of those features. In the description of this application, the word "multiple" means at least two or more, such as two, three, four, etc., unless otherwise explicitly and specifically defined in the embodiments.
[0111] In this application, unless otherwise explicitly specified or limited in the embodiments, the terms "installation," "connection," "joining," and "fixing" appearing in the embodiments should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can also be a mechanical connection, an electrical connection, etc. Of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication between two components, or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific implementation.
[0112] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. A method for reconstructing medical images, characterized in that, Applied to medical imaging equipment; the method includes: Medical image files are reconstructed based on the first imaging parameters; Obtain the second imaging parameters, and if it is determined that the second imaging parameters are different from the first imaging parameters in terms of only the parameter values of the displayed parameters, generate only a parameter description file. The parameter description file includes: the parameter values of the displayed parameters in the second imaging parameters, and the identifier of the medical image file.
2. The method according to claim 1, characterized in that, The display parameters include at least one of the following: window width, window level, scaling factor, translation distance, rotation angle, and flip direction.
3. The method according to claim 1, characterized in that, Before generating only a parameter description file when it is determined that the second imaging parameter differs from the first imaging parameter only in the parameter values displayed, the method further includes: Obtain the similarities and differences between the parameter values of each parameter in the first imaging parameters and the parameter values of the parameters in the second imaging parameters; If all the different parameter values belong to the displayed parameters, it is determined that the second imaging parameter and the first imaging parameter are different only in the displayed parameter values.
4. The method according to any one of claims 1 to 3, characterized in that, The method further includes: The medical image file and the parameter description file are transmitted to the PACS so that the PACS can transmit the medical image file and the parameter description file to the display device.
5. The method according to any one of claims 1 to 3, characterized in that, Before reconstructing the medical image file based on the first imaging parameters, the method further includes: Based on the original scan data and third imaging parameters, a thick-slice image sequence is reconstructed and displayed; At least the reconstruction and acquisition parameters in the third imaging parameters are adjusted to obtain the first imaging parameters.
6. The method according to claim 5, characterized in that, The reconstruction and acquisition parameters include at least one of layer thickness, imaging field of view, imaging center position, convolution kernel, image interval, and image resolution.
7. A method for displaying medical images, characterized in that, Applied to a display device; the method includes: Load the parameter description file to obtain the identifier and display parameter values of the medical image file; The medical image file is obtained based on its identifier; Based on the medical image file, the medical image is displayed according to the parameter values of the display parameters.
8. A medical imaging device, characterized in that, include: A processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions which, when executed by the processor, implement the method as described in any one of claims 1-6.
9. A display device, characterized in that, include: A processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions which, when executed by the processor, implement the method of claim 7.
10. A display system, characterized in that, include: The medical imaging device as described in claim 8 and the display device as described in claim 9.