Multi-modal pelvic image conversion method and system based on pelvic anterior plane angle

Abstract

The invention provides a multi-mode pelvic image conversion method, system and device based on a pelvic front plane angle and a computer readable storage medium. The multi-modal pelvic image conversion method based on the pelvic anterior plane angle comprises the following steps: acquiring a standard standing position pelvic lateral position X-ray image of a patient; calculating an actual pelvic anterior plane angle of the patient based on the standing position pelvic lateral position X-ray image; obtaining a clinostatism pelvis CT image of the patient and performing three-dimensional reconstruction to obtain a three-dimensional pelvis model; according to the actual pelvic anterior plane angle of the patient, the pelvic anterior inclination angle of the three-dimensional pelvic model is adjusted; and projecting the three-dimensional pelvis model after pelvis forward inclination angle adjustment to generate a standing position pelvis normal position X-ray image. According to the embodiment of the invention, the method can achieve the quick and accurate conversion from the CT image of the clinostatism pelvis to the normal X-ray image of the standing pelvis.

Description

Technical Field

[0001] This application belongs to the field of multi-modal image conversion, and particularly relates to a multi-modal pelvic image conversion method, system, device and computer-readable storage medium based on the pelvic anterior plane angle. Background Art

[0002] Supine CT is a widely used imaging technology that can provide detailed anatomical information of bones. Repeated operations are required on the three-dimensional images of CT and the X-rays generated by projections for preoperative planning and intraoperative navigation. However, due to the limitations of supine scanning, it cannot accurately reflect the pelvic situation in the standing position.

[0003] Therefore, how to quickly convert supine CT data into a standing pelvic X-ray has become a technical problem in clinical medicine. The existing solutions to this problem are relatively limited. Either the technology is complex, time-consuming and laborious, or the accuracy is low and it is difficult to be actually applied, with the disadvantages of low efficiency and inaccurate results. In addition, there is an urgent need for a method that can quickly and accurately realize the conversion and calibration from supine pelvic CT image data to standing pelvic X-ray.

[0004] Therefore, how to quickly and accurately convert the supine pelvic CT image into a standing pelvic anteroposterior X-ray image is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] The embodiments of this application provide a multi-modal pelvic image conversion method, system, device and computer-readable storage medium based on the pelvic anterior plane angle, which can quickly and accurately convert the supine pelvic CT image into a standing pelvic anteroposterior X-ray image.

[0006] In a first aspect, the embodiments of this application provide a multi-modal pelvic image conversion method based on the pelvic anterior plane angle, including:

[0007] Obtain the standard standing pelvic lateral X-ray image of the patient;

[0008] Based on the standing pelvic lateral X-ray image, calculate the actual pelvic anterior plane angle of the patient;

[0009] Obtain the supine pelvic CT image of the patient and perform three-dimensional reconstruction to obtain a three-dimensional pelvic model;

[0010] According to the actual pelvic anterior plane angle of the patient, adjust the pelvic anteversion angle of the three-dimensional pelvic model;

[0011] Project the three-dimensional pelvic model with the adjusted pelvic anteversion angle to generate a standing pelvic anteroposterior X-ray image.

[0012] Optionally, based on the standing pelvic lateral X-ray image, calculate the patient's actual pelvic anterior plane angle, including:

[0013] Based on the standing pelvic lateral X-ray image, the angle between the plane connecting the bilateral anterior superior iliac spines and the most anterior edge of the pubic symphysis and the perpendicular line of the coronal plane is obtained as the patient's actual pelvic anterior plane angle.

[0014] Optionally, obtain the patient's supine pelvic CT image and perform three-dimensional reconstruction to obtain a three-dimensional pelvic model, including:

[0015] Through medical image processing technology, the three-dimensional pelvic model of the patient is reconstructed from the supine pelvic CT image to ensure the geometric accuracy and spatial resolution of the image.

[0016] Optionally, according to the patient's actual pelvic anterior plane angle, adjust the pelvic anteversion angle of the three-dimensional pelvic model, including:

[0017] According to the patient's actual pelvic anterior plane angle, adjust the pelvic anteversion angle of the three-dimensional pelvic model to be consistent with the pelvic anterior plane angle of the standing pelvic lateral X-ray image.

[0018] Optionally, according to the patient's actual pelvic anterior plane angle, adjust the pelvic anteversion angle of the three-dimensional pelvic model to be consistent with the pelvic anterior plane angle of the standing pelvic lateral X-ray image, including:

[0019] Through mathematical modeling, adjust the pelvic anteversion angle of the three-dimensional pelvic model to make it conform to the pelvic anterior plane angle of the patient in the standing position;

[0020] The three-dimensional pelvic model will rotate, and its angle is adjusted to ensure that its anatomical position is consistent with the standard standing position;

[0021] It is completed through a three-dimensional rotation matrix, and the actual anatomical differences of the pelvis in different positions need to be considered during the calculation process to ensure the accuracy of the angle adjustment.

[0022] Optionally, project the three-dimensional pelvic model with the adjusted pelvic anteversion angle to generate a standing pelvic anteroposterior X-ray image, including:

[0023] Through the medical image projection algorithm, project the adjusted three-dimensional pelvic model to generate a standing pelvic anteroposterior X-ray image;

[0024] Among them, the medical image projection algorithm includes perspective transformation and geometric projection techniques.

[0025] Optionally, after generating the standing pelvic anteroposterior X-ray image, it also includes:

[0026] Perform image optimization processing on the standing pelvic anteroposterior X-ray image;

[0027] Among them, the image optimization process includes image enhancement, noise removal, and detail retention techniques to improve the clarity and diagnostic value of the image.

[0028] In a second aspect, an embodiment of the present application provides a multimodal pelvic image conversion system based on the pelvic anterior plane angle, including:

[0029] An image acquisition module for acquiring a standard standing pelvic lateral X-ray image of a patient;

[0030] An angle calculation module for calculating the actual pelvic anterior plane angle of the patient based on the standing pelvic lateral X-ray image;

[0031] A three-dimensional reconstruction module for acquiring a supine pelvic CT image of the patient and performing three-dimensional reconstruction to obtain a three-dimensional pelvic model;

[0032] An angle adjustment module for adjusting the pelvic anteversion angle of the three-dimensional pelvic model according to the actual pelvic anterior plane angle of the patient;

[0033] A model projection module for projecting the three-dimensional pelvic model with the adjusted pelvic anteversion angle to generate a standing pelvic anteroposterior X-ray image.

[0034] In a third aspect, an embodiment of the present application provides an electronic device, which includes: a processor and a memory storing computer program instructions;

[0035] When the processor executes the computer program instructions, it implements a multimodal pelvic image conversion method based on the pelvic anterior plane angle.

[0036] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which computer program instructions are stored, and when the computer program instructions are executed by a processor, a multimodal pelvic image conversion method based on the pelvic anterior plane angle is implemented.

[0037] The multimodal pelvic image conversion method, system, device, and computer-readable storage medium according to the embodiments of the present application can quickly and accurately convert a supine pelvic CT image into a standing pelvic anteroposterior X-ray image.

[0038] The multimodal pelvic image conversion method based on the pelvic anterior plane angle includes:

[0039] Acquiring a standard standing pelvic lateral X-ray image of a patient;

[0040] Calculating the actual pelvic anterior plane angle of the patient based on the standing pelvic lateral X-ray image;

[0041] Obtain the lying position pelvic CT image of the patient and perform three-dimensional reconstruction to obtain a three-dimensional pelvic model;

[0042] Adjust the pelvic anteversion angle of the three-dimensional pelvic model according to the actual pelvic anterior plane angle of the patient;

[0043] Project the three-dimensional pelvic model with the adjusted pelvic anteversion angle to generate a standing position pelvic anteroposterior X-ray image. Description of the Drawings

[0044] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0045] Figure 1 It is a schematic flowchart of a multi-modal pelvic image conversion method based on the pelvic anterior plane angle provided by an embodiment of the present application;

[0046] Figure 2 It is a schematic diagram of a three-dimensional pelvic model provided by an embodiment of the present application;

[0047] Figure 3 It is a side view diagram of a three-dimensional pelvic model provided by an embodiment of the present application;

[0048] Figure 4 It is a standing position pelvic anteroposterior X-ray image provided by an embodiment of the present application;

[0049] Figure 5 It is a schematic structural diagram of a multi-modal pelvic image conversion system based on the pelvic anterior plane angle provided by an embodiment of the present application;

[0050] Figure 6 It is a schematic structural diagram of an electronic device provided by an embodiment of the present application. Detailed Embodiments

[0051] The following will describe in detail the features and exemplary embodiments of various aspects of the present application. In order to make the purpose, technical solutions and advantages of the present application more clear, the following will further describe the present application in detail in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than limiting the present application. For those skilled in the art, the present application can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by showing examples of the present application.

[0052] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0053] To solve the problems of the prior art, an algorithm based on the Anterior Pelvic Plane (APP) is developed, which can efficiently and automatically convert the supine pelvic CT data into pelvic X-ray images with standing position characteristics quickly. This can not only provide a more convenient tool for doctors, reduce cumbersome operation steps, but also effectively reduce the radiation risk of patients and achieve a safer and more effective clinical image evaluation. The implementation of this new technology has broad clinical application prospects and can meet the higher requirements of modern medicine for imaging technology.

[0054] The embodiments of the present application provide a multi-modal pelvic image conversion method, system, device and computer-readable storage medium based on the anterior pelvic plane angle. First, the multi-modal pelvic image conversion method based on the anterior pelvic plane angle provided by the embodiments of the present application will be introduced below.

[0055] Figure 1 The flowchart of the multi-modal pelvic image conversion method based on the anterior pelvic plane angle provided by an embodiment of the present application is shown. As Figure 1 shown, the multi-modal pelvic image conversion method based on the anterior pelvic plane angle includes:

[0056] S101. Obtain the standard standing pelvic lateral X-ray image of the patient;

[0057] S102. Calculate the actual anterior pelvic plane angle of the patient based on the standing pelvic lateral X-ray image;

[0058] S103. Obtain the supine pelvic CT image of the patient and perform three-dimensional reconstruction to obtain a three-dimensional pelvic model;

[0059] S104. Adjust the pelvic anteversion angle of the three-dimensional pelvic model according to the actual anterior pelvic plane angle of the patient;

[0060] S105. Project the three-dimensional pelvic model after the pelvic tilt angle is adjusted to generate a standing pelvic anteroposterior X-ray image.

[0061] This application can efficiently and automatically convert the lying pelvic CT data into pelvic X-ray images with standing characteristics quickly, which can not only provide a more convenient tool for doctors, reduce cumbersome operation steps, assist surgeons in real-time evaluating whether the surgical plan is suitable, provide information support for the correct position of the pelvis, and ensure the precise adjustment of the pelvic osteotomy position and the accuracy of prosthesis installation during the operation.

[0062] Figure 2 It is a schematic diagram of a three-dimensional pelvic model provided by an embodiment of this application; Figure 3 It is a side view of a three-dimensional pelvic model provided by an embodiment of this application; Figure 4 It is a standing pelvic anteroposterior X-ray image provided by an embodiment of this application.

[0063] In one embodiment, based on the standing pelvic lateral X-ray image, calculate the patient's actual pelvic anterior plane angle, including:

[0064] Based on the standing pelvic lateral X-ray image, obtain the patient's actual pelvic anterior plane angle by the included angle between the plane connecting the bilateral anterior superior iliac spines and the most anterior edge of the pubic symphysis and the perpendicular line of the coronal plane.

[0065] This application first proposes to obtain the patient's actual pelvic anterior plane angle (PT) by taking a standard standing pelvic lateral X-ray of the patient, and then use this angle to adjust the tilt angle of the three-dimensional pelvic data in the CT image.

[0066] This method not only simplifies the complex geometric modeling and simulation process in the original method, but also improves the accuracy and personalized adaptability of the algorithm through the acquisition of actual image data. By matching the pelvic tilt angle with the anterior plane degree of the standard standing X-ray, the accurate conversion from the CT image to the standing pelvic X-ray can be achieved.

[0067] In one embodiment, obtain the patient's lying pelvic CT image and perform three-dimensional reconstruction to obtain a three-dimensional pelvic model, including:

[0068] Through medical image processing technology, three-dimensionally reconstruct the patient's three-dimensional pelvic model from the lying pelvic CT image to ensure the geometric accuracy and spatial resolution of the image.

[0069] Perform three-dimensional reconstruction using the patient's pelvic CT images. The pelvic CT images provide high-resolution anatomical information, including the bone structure of the pelvis, the positions of soft tissues, etc. Through medical image processing techniques, a three-dimensional pelvic model of the patient is reconstructed to ensure the geometric accuracy and spatial resolution of the images. At this time, the three-dimensional model can accurately display the anatomical shape of the pelvis and become the basis for subsequent adjustments and projections.

[0070] In this application, by accurately measuring the pelvic anteversion angle of the patient individual and applying it to the three-dimensional CT image reconstruction process, customized image conversion can be achieved. Compared with the traditional "one-size-fits-all" image processing method, this technology can precisely adjust the pelvic images according to the unique situation of each patient to better reflect the actual pelvic state of the patient.

[0071] In one embodiment, according to the actual pelvic anterior plane angle of the patient, adjusting the pelvic anteversion angle of the three-dimensional pelvic model includes:

[0072] According to the actual pelvic anterior plane angle of the patient, adjust the pelvic anteversion angle of the three-dimensional pelvic model to be consistent with the pelvic anterior plane angle of the standing pelvic lateral X-ray image.

[0073] The innovation point of this application in image processing is the organic combination of the three-dimensional reconstruction of pelvic CT images and the adjustment of the anteversion angle. Traditional methods often rely on stereology-based geometric calculations, while this application adjusts the anteversion angle of the three-dimensional CT images of the pelvis to be consistent with the actual pelvic standing anterior plane angle of the patient, thus avoiding the conversion error directly based on the geometric model and ensuring the anatomical accuracy of the images.

[0074] In one embodiment, according to the actual pelvic anterior plane angle of the patient, adjusting the pelvic anteversion angle of the three-dimensional pelvic model to be consistent with the pelvic anterior plane angle of the standing pelvic lateral X-ray image includes:

[0075] Through mathematical modeling, adjust the pelvic anteversion angle of the three-dimensional pelvic model to conform to the pelvic anterior plane angle when the patient is standing;

[0076] The three-dimensional pelvic model will rotate, and adjust its angle to ensure that its anatomical position is consistent with the standard standing position;

[0077] It is completed through a three-dimensional rotation matrix. During the calculation process, the actual anatomical differences of the pelvis in different positions need to be considered to ensure the accuracy of the angle adjustment.

[0078] The anteroposterior pelvic X-ray achieved through the above technology can be used for real-time judgment and operation during surgery. After the anterior pelvic plane angle of the patient is adjusted to be consistent with the standing position, the doctor can, based on this image, judge in real time during the operation whether pelvic osteotomy surgery or total hip prosthesis installation is appropriate, thereby providing important surgical guidance information, reducing human error and increasing the success rate of the surgery.

[0079] In one embodiment, a three-dimensional pelvic model with adjusted pelvic anteversion angle is projected to generate an anteroposterior pelvic X-ray image in the standing position, including:

[0080] The adjusted three-dimensional pelvic model is projected through a medical image projection algorithm to generate an anteroposterior pelvic X-ray image in the standing position;

[0081] Among them, the medical image projection algorithm includes view transformation and geometric projection techniques.

[0082] After adjusting the pelvic anteversion angle, the three-dimensional adjusted pelvic image is projected to generate an anteroposterior pelvic X-ray in the standing position that meets anatomical accuracy. Through a medical image projection algorithm (such as view transformation and geometric projection techniques), the adjusted three-dimensional model is projected into a two-dimensional image to generate an anteroposterior pelvic X-ray in the standing position. At this time, the pelvic image is highly consistent with the actual standing pelvic X-ray of the patient anatomically and can accurately reflect the morphology of the pelvis in the standing state.

[0083] This application projects the adjusted three-dimensional CT image to generate an anteroposterior pelvic X-ray that is basically consistent with the standing position. Through an optimized projection algorithm, this step can generate a high-quality pelvic X-ray, retain the anatomical features of the patient's pelvis, and at the same time avoid the complex image synthesis and calibration processes required in traditional methods.

[0084] In one embodiment, after generating the anteroposterior pelvic X-ray image in the standing position, it further includes:

[0085] Performing image optimization processing on the anteroposterior pelvic X-ray image in the standing position;

[0086] Among them, the image optimization processing includes image enhancement, noise removal, and detail retention techniques to improve the clarity and diagnostic value of the image.

[0087] In order to ensure that the generated anteroposterior pelvic X-ray has sufficient medical image quality, image optimization processing is required. This includes techniques such as image enhancement, noise removal, and detail retention to improve the clarity and diagnostic value of the image. The optimized image will retain the key anatomical structures of the pelvis, ensuring that doctors can make accurate judgments and operations based on this image. In addition, the algorithm should have strong adaptability and be able to handle individual differences of different patients, such as different pelvic morphologies, osteoporosis, etc.

[0088] In the real-time operation judgment in clinical applications, an important application of this application is to provide real-time assistance during surgery. Through the CT image data collected during the operation, doctors can use this algorithm to adjust the pelvic image in real time and generate a standing pelvic anteroposterior X-ray. This image can help doctors determine whether the pelvis is in an ideal position during the operation, whether osteotomy adjustment or prosthesis installation adjustment is required, etc., thereby improving the surgical accuracy, reducing the risk of postoperative complications, and enhancing the patient's recovery effect.

[0089] In terms of algorithm integration and clinical system docking, to ensure the wide application of this technology in clinical practice, this algorithm needs to be integrated into existing image processing and surgical assistance systems. This requires seamless docking with the hospital's medical image workstation (PACS system) and providing a user-friendly operation interface so that doctors can conveniently obtain the adjusted pelvic X-ray image. The system has a high degree of automation. Doctors only need to input the CT image data, and the system can complete a series of steps such as anterior plane angle extraction, three-dimensional reconstruction, angle adjustment, and image projection, and finally generate a real-time available pelvic anteroposterior X-ray.

[0090] The pelvic image conversion technology involved in this application has a broad market prospect. With the continuous development of imaging technology, the demand for medical image processing in the fields of clinical diagnosis, surgical assistance, etc. is increasing day by day. Especially in the orthopedic field, precise image analysis and surgical decision-making support for the pelvis have important clinical value. By converting the pelvic supine CT image into a pelvic X-ray consistent with the standing position, this technology can significantly improve the diagnostic accuracy, reduce errors, and provide real-time and precise image support for complex pelvic surgeries (such as hip replacement, osteotomy, etc.), reducing the surgical risk.

[0091] In addition, with the gradual application of artificial intelligence and automation technologies, this algorithm can be efficiently integrated into existing medical image workstation systems, providing convenient and precise tools for hospitals, imaging diagnosis centers, and surgical teams. With the increasing demand for personalized medicine and refined surgeries in the medical industry, the market application potential of this patent is huge and can be promoted to more medical institutions in the future, becoming an indispensable tool in orthopedic surgeries and imaging diagnoses.

[0092] Figure 5 It is a schematic structural diagram of a multimodal pelvic image conversion system based on the pelvic anterior plane angle provided by an embodiment of this application;

[0093] The multimodal pelvic image conversion system based on the pelvic anterior plane angle includes:

[0094] An image acquisition module 501, configured to acquire a standard standing pelvic lateral X-ray image of a patient;

[0095] An angle calculation module 502, configured to calculate the actual anterior pelvic plane angle of a patient based on a standing pelvic lateral X-ray image;

[0096] A three-dimensional reconstruction module 503, configured to obtain a lying pelvic CT image of the patient and perform three-dimensional reconstruction to obtain a three-dimensional pelvic model;

[0097] An angle adjustment module 504, configured to adjust the pelvic anteversion angle of the three-dimensional pelvic model according to the actual anterior pelvic plane angle of the patient;

[0098] A model projection module 505, configured to project the three-dimensional pelvic model with the adjusted pelvic anteversion angle to generate a standing pelvic anteroposterior X-ray image.

[0099] Figure 6 FIG. shows a schematic structural diagram of an electronic device provided by an embodiment of the present application.

[0100] The electronic device may include a processor 601 and a memory 602 storing computer program instructions.

[0101] Specifically, the processor 601 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0102] The memory 602 may include a mass storage for data or instructions. By way of example and not limitation, the memory 602 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disc, a magneto-optical disc, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. In a suitable case, the memory 602 may include a removable or non-removable (or fixed) medium. In a suitable case, the memory 602 may be internal or external to the electronic device. In a particular embodiment, the memory 602 may be a non-volatile solid state memory.

[0103] In one embodiment, the memory 602 may be a read only memory (ROM). In one embodiment, the ROM may be a mask programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM), or a flash memory or a combination of two or more of these.

[0104] The processor 601 reads and executes the computer program instructions stored in the memory 602 to implement any one of the multi-modal pelvic image conversion methods based on the pelvic anterior plane angle in the above embodiments.

[0105] In one example, the electronic device may further include a communication interface 603 and a bus 610. Among them, as Figure 6 shown, the processor 601, the memory 602, and the communication interface 603 are connected through the bus 610 to complete communication with each other.

[0106] The communication interface 603 is mainly used to implement communication between various modules, systems, units, and / or devices in the embodiments of the present application.

[0107] The bus 610 includes hardware, software, or both, and couples the components of the electronic device to each other. By way of example and not limitation, the bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an InfiniBand interconnect, a Low Pin Count (LPC) bus, a memory bus, a MicroChannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VLB) bus, or other suitable buses or a combination of two or more of these. In a suitable case, the bus 610 may include one or more buses. Although the embodiments of the present application describe and illustrate a specific bus, the present application contemplates any suitable bus or interconnect.

[0108] In addition, in combination with the multi-modal pelvic image conversion method based on the pelvic anterior plane angle in the above embodiments, the embodiments of the present application may provide a computer-readable storage medium to implement. Computer program instructions are stored on the computer-readable storage medium; when the computer program instructions are executed by the processor, any one of the multi-modal pelvic image conversion methods based on the pelvic anterior plane angle in the above embodiments is implemented.

[0109] It should be clear that the present application is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications, and additions, or change the order between steps after understanding the spirit of the present application.

[0110] The functional modules shown in the above-described structural block diagrams can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application-specific integrated circuit (ASIC), appropriate firmware, a plug-in, a functional card, and so on. When implemented in software, the elements of the present application are programs or code segments for performing the required tasks. The program or code segment can be stored in a machine-readable medium or transmitted over a transmission medium or communication link via a data signal carried in a carrier wave. A "machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical discs, hard disks, fiber optic media, radio frequency (RF) links, and so on. The code segment can be downloaded via a computer network such as the Internet, an intranet, and so on.

[0111] It should also be noted that the exemplary embodiments mentioned in the present application describe some methods or systems based on a series of steps or systems. However, the present application is not limited to the order of the above steps, that is, the steps can be executed in the order mentioned in the embodiments, or different from the order in the embodiments, or several steps can be executed simultaneously.

[0112] Aspects of the present application have been described above with reference to the flowcharts and / or block diagrams of methods, systems (systems), and computer program products according to embodiments of the present application. It should be understood that each block in the flowcharts and / or block diagrams, and the combinations of blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing system to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing system enable the implementation of the functions / actions specified in one or more blocks of the flowcharts and / or block diagrams. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field-programmable logic circuit. It should also be understood that each block in the block diagrams and / or flowcharts, and the combinations of blocks in the block diagrams and / or flowcharts, can also be implemented by dedicated hardware for performing the specified functions or actions, or by a combination of dedicated hardware and computer instructions.

[0113] As described above, this is only the specific implementation manner of the present application. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules, and units described above can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein. It should be understood that the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present application.

Claims

1. A multimodal pelvic image conversion method based on pelvic anterior plane angle, characterized in that: include: Obtain a standard standing lateral pelvic X-ray of the patient; Based on the standing lateral pelvic X-ray image, the patient's actual anterior pelvic plane angle was calculated; Obtain the patient's supine pelvic CT image and perform three-dimensional reconstruction to obtain a three-dimensional pelvic model; According to the patient's actual pelvic anterior plane angle, the pelvic anterior tilt angle of the three-dimensional pelvic model is adjusted; The three-dimensional pelvic model after the pelvic anterior tilt angle is adjusted is projected to generate a standing pelvic anteroposterior X-ray image.

2. The multimodal pelvic image conversion method based on pelvic anterior plane angle according to claim 1, characterized in that: Based on the standing lateral pelvic X-ray image, calculate the patient's actual anterior pelvic plane angle, including: Based on the standing lateral pelvic X-ray image, the angle between the plane connecting the bilateral anterior superior iliac spines and the most anterior edge of the pubic symphysis and the vertical line of the coronal plane was obtained to obtain the patient's actual anterior pelvic plane angle.

3. The multimodal pelvic image conversion method based on pelvic anterior plane angle according to claim 1, characterized in that: Obtain the patient's supine pelvic CT image and reconstruct it in three dimensions to obtain a three-dimensional pelvic model, including: Through medical image processing technology, the supine pelvic CT image is reconstructed into a three-dimensional pelvic model of the patient, ensuring the geometric accuracy and spatial resolution of the image.

4. The multimodal pelvic image conversion method based on pelvic anterior plane angle according to claim 1, characterized in that: According to the patient's actual pelvic anterior plane angle, the pelvic anterior tilt angle of the three-dimensional pelvic model is adjusted, including: According to the patient's actual anterior pelvic plane angle, the pelvic anterior tilt angle of the three-dimensional pelvic model was adjusted to be consistent with the pelvic anterior plane angle of the standing pelvic lateral X-ray image.

5. The multimodal pelvic image conversion method based on pelvic anterior plane angle according to claim 4, characterized in that: According to the patient's actual pelvic anterior plane angle, the pelvic anterior tilt angle of the three-dimensional pelvic model is adjusted to be consistent with the pelvic anterior plane angle of the standing pelvic lateral X-ray image, including: Through mathematical modeling, the pelvic tilt angle of the three-dimensional pelvic model is adjusted to make it consistent with the pelvic front plane angle when the patient is in a standing position; The 3D pelvic model will be rotated and its angle adjusted to ensure that its anatomical position is consistent with the standard standing position; This is accomplished through a three-dimensional rotation matrix. During the calculation process, the actual anatomical differences of the pelvis in different body positions need to be considered to ensure the accuracy of the angle adjustment.

6. The multimodal pelvic image conversion method based on pelvic anterior plane angle according to claim 1, characterized in that: Project the three-dimensional pelvic model after the pelvic anterior tilt angle is adjusted to generate a standing pelvic anteroposterior X-ray image, including: The adjusted three-dimensional pelvic model is projected through a medical image projection algorithm to generate a standing pelvic anteroposterior X-ray image; Among them, medical image projection algorithms include perspective transformation and geometric projection technology.

7. The multimodal pelvic image conversion method based on pelvic anterior plane angle according to claim 6, characterized in that: After generating a standing AP pelvic radiograph, include: Perform image optimization processing on standing pelvic anteroposterior X-ray images; Among them, image optimization processing includes image enhancement, noise removal and detail retention technology to improve image clarity and diagnostic value.

8. A multimodal pelvic image conversion system based on pelvic anterior plane angle, characterized in that: The system comprises: An image acquisition module, used for acquiring a standard standing lateral pelvic X-ray image of a patient; An angle calculation module, used to calculate the patient's actual pelvic anterior plane angle based on a standing pelvic lateral X-ray image; A three-dimensional reconstruction module is used to obtain a supine pelvic CT image of the patient and perform three-dimensional reconstruction to obtain a three-dimensional pelvic model; An angle adjustment module is used to adjust the pelvic anterior tilt angle of the three-dimensional pelvic model according to the patient's actual pelvic anterior plane angle; The model projection module is used to project the three-dimensional pelvic model after the pelvic anteversion angle is adjusted to generate a standing pelvic anteroposterior X-ray image.

9. An electronic device, characterized in that: The electronic device comprises: a processor and a memory storing computer program instructions; When the processor executes the computer program instructions, the multimodal pelvic image conversion method based on the pelvic anterior plane angle as described in any one of claims 1-7 is implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer program instructions, and when the computer program instructions are executed by the processor, the multimodal pelvic image conversion method based on the pelvic anterior plane angle according to any one of claims 1 to 7 is implemented.

Images