Acetabular bone defect detection and reconstruction method and system based on medical three-dimensional reconstruction

Abstract

The present invention provides a method and system for detecting and reconstructing acetabular bone defects based on medical three-dimensional reconstruction, and relates to the field of medical engineering technology. The method and system for detecting and reconstructing acetabular bone defects based on medical three-dimensional reconstruction can provide doctors with comprehensive and accurate acetabular bone defect detection by setting an acetabular bone image acquisition module, an acetabular bone defect detection module, an acetabular bone three-dimensional reconstruction module, an acetabular bone reconstruction evaluation module, and an acetabular bone image database module. By calculating the patient's acetabular bone defect index and the acetabular bone three-dimensional bone model evaluation index, the system can quantify the degree of bone defects and provide doctors with objective and comparable evaluation data, which is helpful to determine the severity of the patient's condition and formulate a treatment plan, evaluate the quality and accuracy of the reconstruction model, ensure that the reconstruction result is consistent with the patient's actual situation, and improve the credibility of the reconstruction model and the reliability of clinical application.

Description

Technical Field

[0001] The present invention relates to the field of medical engineering technology, and in particular to a method and system for detecting and reconstructing acetabular bone defects based on medical three-dimensional reconstruction. Background Art

[0002] With the continuous advancement of science and technology, 3D reconstruction technology in the field of medical imaging has been widely used. Through high-definition 3D reconstruction images, doctors can diagnose the disease more accurately and provide patients with personalized treatment plans. In the detection and reconstruction of acetabular bone defects, 3D reconstruction technology can provide more comprehensive and intuitive information, which helps doctors make accurate diagnoses and surgical plans.

[0003] For example, the publication number CN110473193A discloses a detection method, detection device, storage medium and processor for acetabular bone defect, the detection method includes: obtaining medical image data to be tested, the medical image data to be tested is the medical image data of the acetabulum of the person to be tested; using a detection model to analyze the medical image data to be tested, and determining the degree of acetabular bone defect of the medical image data to be tested, wherein the detection model is trained by deep learning using multiple sets of data, and each set of data in the multiple sets of data includes: training medical image data and the degree of training acetabular bone defect corresponding to the training medical image data. This method avoids using the typing method in the prior art to determine the degree of acetabular bone defect of the medical image data to be tested, but uses a training model to determine the degree of acetabular bone defect of the medical image data to be tested, and the training model is obtained by deep learning training, so that the determined result is more accurate.

[0004] For example, the publication number CN114259327A discloses a method for acetabular bone defect reconstruction based on 3D printing, including the following steps: S1, preparation, characterization and cell compatibility detection of titanium metal implants printed by electron beam melting 3D; S2, in vitro characterization of biological properties of titanium metal implants printed by electron beam melting 3D; S3, in vivo characterization of biological properties of titanium metal implants printed by electron beam melting 3D; S4, clinical research on titanium metal implants printed by electron beam melting 3D. This scheme is based on CT three-dimensional reconstruction of acetabular bone defect morphology, using computer-aided design (CAD) to establish a digital pad filler model, and using electron beam melting (EMB) 3D printing technology to produce personalized metal pad implants with good biological properties, so as to achieve effective reconstruction of acetabular bone defects, thereby bringing new solutions to the bone defect problem in hip revision surgery.

[0005] However, the inventors of this application found that the above technology has at least the following technical problems in the process of implementing the technical solution of the invention in the embodiment of this application:

[0006] Existing acetabular bone defect detection methods rely on a large amount of labeled data with limited generalization capabilities, and deep learning models are often considered black box models, making it difficult to explain their decision-making process. In the field of medical imaging, doctors may prefer methods that can understand and explain test results in order to better guide clinical practice.

[0007] Among the existing methods for acetabular bone defect reconstruction, electron beam melting 3D printing technology requires expensive equipment and materials, and the preparation process may be complicated. Summary of the invention

[0008] The present invention provides a method and system for detecting and reconstructing acetabular bone defects based on medical three-dimensional reconstruction, which not only improves the accuracy and effectiveness of bone defect diagnosis and treatment, but also provides more choices and convenience for doctors and patients, and promotes the improvement of medical standards and the quality of medical services.

[0009] In order to solve the above-mentioned invention object, the technical solution provided by the present invention is as follows:

[0010] On the one hand, a system for detecting and reconstructing acetabular bone defects based on medical three-dimensional reconstruction is provided, characterized in that the system comprises: an acetabular bone image acquisition module, an acetabular bone defect detection module, an acetabular bone three-dimensional reconstruction module, an acetabular bone reconstruction evaluation module, and an acetabular bone image database module;

[0011] An acetabulum bone image acquisition module, used for acquiring an acetabulum bone defect image of a target patient;

[0012] Acetabular bone defect detection module, used to detect the acetabular bone defect image of the target patient, analyze the degree of acetabular bone defect of the target patient, obtain the acetabular bone defect data of the target patient, analyze the acetabular bone defect data of the target patient, and obtain the acetabular bone defect index of the target patient;

[0013] A 3D reconstruction module for the acetabulum bone, used to establish a 3D bone model of the acetabulum bone through medical 3D reconstruction based on the acetabulum bone defect index of the target patient and the acetabulum bone defect image of the target patient;

[0014] Acetabular bone reconstruction assessment module, used to assess the acetabular bone three-dimensional bone model and obtain the acetabular bone three-dimensional bone model assessment index; based on the acetabular bone three-dimensional bone model assessment index, analyze whether the acetabular bone three-dimensional bone model is qualified;

[0015] The acetabular bone image database module is used to store the acetabular bone defect images, acetabular bone defect index and acetabular bone three-dimensional bone model evaluation index of the target patient.

[0016] Optionally, the acetabular bone defect image of the target patient is detected, the degree of the acetabular bone defect of the target patient is analyzed, and the acetabular bone defect data of the target patient is obtained, including:

[0017] Preprocessing the acetabular bone defect images of the target patient;

[0018] The pre-processed acetabular bone defect image of the target patient is transmitted to the medical imaging software to obtain the acetabular bone defect data of the target patient;

[0019] The acetabular bone defect data of the target patients include: acetabular bone defect area, acetabular bone total area, acetabular bone defect depth and acetabular bone density.

[0020] Optionally, analyzing the acetabular bone defect data of the target patient to obtain the acetabular bone defect index of the target patient includes:

[0021] Based on the acetabular bone defect data of the target patient, the ratio of the acetabular bone defect area to the total acetabular bone area is obtained;

[0022] Obtaining a standard value of acetabular bone density preset in an acetabular bone image database, comparing the acetabular bone density with the standard value, and obtaining a ratio of the acetabular bone density;

[0023] And according to the ratio of the acetabular bone defect area, the acetabular bone defect depth and the acetabular bone density, weight allocation is performed to obtain the weight coefficient of the acetabular bone defect area, the weight coefficient of the acetabular bone defect depth and the weight coefficient of the acetabular bone density;

[0024] The weight coefficient of acetabular bone defect area, the weight coefficient of acetabular bone defect depth and the weight coefficient of acetabular bone density are respectively comprehensively calculated with the ratio of acetabular bone defect area, the ratio of acetabular bone defect depth and acetabular bone density to obtain the acetabular bone defect index of the target patient.

[0025] Optionally, the acetabular defect index of the target patient's hip is calculated according to the following formula:

[0026]

[0027] In the formula, represents the acetabular bone defect index of the target patient, represents the acetabular bone defect area, represents the total area of ​​the acetabulum, Indicates the depth of acetabular bone defect, Indicates acetabular bone density, Indicates the standard value of acetabular bone density, represents the weight coefficient of acetabular bone defect area, represents the weight coefficient of the acetabular bone defect depth, Represents the weight coefficient of acetabular bone density.

[0028] Optionally, based on the acetabular bone defect index of the target patient and the acetabular bone defect image of the target patient, a three-dimensional bone model of the acetabular bone is established through medical three-dimensional reconstruction, including:

[0029] Based on the acetabular bone defect index and acetabular bone defect image data of the target patient, the acetabular bone is segmented from the image using a region growing algorithm and an edge detection algorithm to obtain two-dimensional voxel grid data of the acetabular bone;

[0030] The 2D voxel grid data were converted into a 3D grid model using the 3D reconstruction Marching Cubes and Level Set algorithms. The 3D grid model was repaired and filled using computer-aided filling software to establish a 3D bone model of the acetabulum.

[0031] Optionally, the acetabulum three-dimensional bone model is evaluated to obtain an acetabulum three-dimensional bone model evaluation index, including:

[0032] The geometrical measurement of the acetabulum three-dimensional bone model is performed by using three-dimensional model software to obtain geometrical morphological data of the acetabulum three-dimensional bone model;

[0033] The acetabulum three-dimensional bone model is imported into computer-aided engineering (CAE) software, motion simulation and load simulation are performed on the acetabulum three-dimensional bone model, and functional data of the acetabulum three-dimensional bone model is obtained;

[0034] The geometric morphological data of the acetabulum three-dimensional bone model are analyzed to obtain the morphological evaluation index of the acetabulum three-dimensional bone model and the functional evaluation index of the acetabulum three-dimensional bone model;

[0035] The weights are assigned to the acetabulum three-dimensional bone model morphological evaluation index and the acetabulum three-dimensional bone model functional evaluation index, and they are respectively comprehensively calculated with the preset acetabulum three-dimensional bone model morphological evaluation standard index and the acetabulum three-dimensional bone model functional evaluation standard index to obtain the acetabulum three-dimensional bone model evaluation index.

[0036] Optionally, the geometric data of the acetabulum three-dimensional bone model includes: the cross-sectional area of ​​the acetabulum and the volume of the acetabulum;

[0037] The functional data of the acetabulum three-dimensional bone model includes: a joint motion range angle value and a joint motion range displacement value.

[0038] Optionally, the acetabulum three-dimensional bone model evaluation index is calculated according to the following formula:

[0039]

[0040] In the formula, represents the acetabulum three-dimensional bone model evaluation index, Represents the morphological evaluation index of the acetabulum three-dimensional bone model, Represents the functional evaluation index of the acetabulum three-dimensional bone model, Represents the standard index for morphological evaluation of the acetabulum three-dimensional bone model. Represents the standard index for evaluating the function of the acetabulum three-dimensional bone model. represents the weight factor of the morphological evaluation index of the acetabulum three-dimensional bone model, Represents the weight factor of the functional evaluation index of the acetabulum three-dimensional bone model.

[0041] Optionally, based on the acetabulum 3D bone model evaluation index, analyzing whether the acetabulum 3D bone model is qualified includes:

[0042] Comprehensively analyze the acetabulum three-dimensional bone model evaluation index and the acetabulum three-dimensional bone model evaluation standard index preset in the database to obtain the acetabulum three-dimensional bone model conformity index;

[0043] Based on the acetabulum three-dimensional bone model compliance index, it is compared with the standard value range of the acetabulum three-dimensional bone model compliance index preset in the database. When the acetabulum three-dimensional bone model compliance index exceeds the standard value range of the acetabulum three-dimensional bone model compliance index, it indicates that the acetabulum three-dimensional bone model does not meet the standards; when the acetabulum three-dimensional bone model compliance index is within the standard value range of the acetabulum three-dimensional bone model compliance index, it indicates that the acetabulum three-dimensional bone model meets the standards.

[0044] On the one hand, a method for detecting and reconstructing acetabular bone defects based on medical three-dimensional reconstruction is provided, and the method is applied to a system for detecting and reconstructing acetabular bone defects based on medical three-dimensional reconstruction, and comprises the following steps:

[0045] S1: Acquire the image data of acetabular bone defect of the target patient;

[0046] S2: detecting the acetabular bone defect image of the target patient, analyzing the degree of the acetabular bone defect of the target patient, obtaining the acetabular bone defect data of the target patient, analyzing the acetabular bone defect data of the target patient, and obtaining the acetabular bone defect index of the target patient;

[0047] S3: Based on the acetabular bone defect index of the target patient and the acetabular bone defect image of the target patient, a three-dimensional bone model of the acetabular bone is established through medical three-dimensional reconstruction;

[0048] S4: Evaluate the acetabulum three-dimensional bone model to obtain the acetabulum three-dimensional bone model evaluation index; based on the acetabulum three-dimensional bone model evaluation index, analyze whether the acetabulum three-dimensional bone model is qualified;

[0049] S5: Store the acetabular bone defect image, acetabular bone defect index and acetabular bone three-dimensional bone model evaluation index of the target patient.

[0050] Compared with the prior art, the above technical solution has at least the following beneficial effects:

[0051] The above-mentioned scheme, the medical three-dimensional reconstruction of the acetabular bone defect detection and reconstruction system, by setting up an acetabular bone image acquisition module, an acetabular bone defect detection module, an acetabular bone three-dimensional reconstruction module, an acetabular bone reconstruction evaluation module, and an acetabular bone image database module, can provide doctors with a comprehensive and accurate acetabular bone defect detection and reconstruction scheme, which helps to improve the efficiency and success rate of diagnosis and treatment, and also provides support for the management and research of medical data, improves the efficiency and accuracy of the medical three-dimensional reconstruction of the acetabular bone defect detection and reconstruction system, and provides doctors with better diagnosis and treatment support.

[0052] The acetabular bone defect detection and reconstruction method based on medical three-dimensional reconstruction can quantify the degree of bone defect by calculating the patient's acetabular bone defect index and the acetabular bone three-dimensional bone model evaluation index, providing doctors with objective and comparable evaluation data, which is helpful to determine the severity of the patient's condition and formulate treatment plans, evaluate the quality and accuracy of the reconstruction model, ensure that the reconstruction results are consistent with the patient's actual situation, and improve the credibility of the reconstruction model and the reliability of clinical application. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0054] Figure 1 A block diagram of an acetabular bone defect detection and reconstruction system based on medical three-dimensional reconstruction provided by an embodiment of the present invention;

[0055] Figure 2 A flow chart of a method for detecting and reconstructing acetabular bone defects based on medical three-dimensional reconstruction provided by an embodiment of the present invention;

[0056] Figure 3 A schematic diagram of the structure of an electronic device provided in an embodiment. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one", "one" or "the" do not indicate a quantitative limitation, but indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0059] It should be noted that the terms "up", "down", "left", "right", "front", "back", etc. used in the present invention are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0060] The present invention achieves the problem of more accurate acetabular bone defect detection, three-dimensional reconstruction and acetabular bone treatment, and provides a acetabular bone defect detection and reconstruction method and system based on medical three-dimensional reconstruction.

[0061] like Figure 1As shown, an embodiment of the present invention provides an acetabular bone defect detection and reconstruction system based on medical three-dimensional reconstruction, including the following modules: an acetabular bone image acquisition module, an acetabular bone defect detection module, an acetabular bone three-dimensional reconstruction module, an acetabular bone reconstruction evaluation module, and an acetabular bone image database module; the acetabular bone image acquisition module is used to acquire the acetabular bone defect image of the target patient; the acetabular bone defect detection module is used to detect the acetabular bone defect image of the target patient, analyze the degree of acetabular bone defect of the target patient, acquire the acetabular bone defect data of the target patient, and analyze the acetabular bone defect data of the target patient to obtain The patient's acetabular bone defect index is obtained; the acetabular bone three-dimensional reconstruction module is used to establish a three-dimensional bone model of the acetabular bone through medical three-dimensional reconstruction based on the patient's acetabular bone defect index and the target patient's acetabular bone defect image; the acetabular bone reconstruction evaluation module is used to evaluate the acetabular bone three-dimensional bone model, obtain the acetabular bone three-dimensional bone model evaluation index, and analyze whether the acetabular bone three-dimensional bone model meets the standard based on the acetabular bone three-dimensional bone model evaluation index; the acetabular bone image database module is used to store the target patient's acetabular bone defect image, the patient's acetabular bone defect index and the acetabular bone three-dimensional bone model evaluation index.

[0062] In this embodiment, the acetabular bone image database module is used to store the target patient's acetabular bone defect image, the patient's acetabular bone defect index, and the acetabular bone three-dimensional bone model evaluation index and index-related data for subsequent query, analysis and application.

[0063] In a feasible implementation, the specific process of obtaining the acetabular bone defect data of the target patient is as follows: the acetabular bone defect image of the target patient is obtained through X-ray examination and CT scanning, and preprocessed, and the preprocessed acetabular bone defect image of the target patient is transmitted to the medical imaging software to obtain the acetabular bone defect data of the target patient; the acetabular bone defect data of the target patient includes the acetabular bone defect area, the total acetabular bone area, the acetabular bone defect depth, and the acetabular bone density.

[0064] In this embodiment, the acetabular bone defect area represents the surface area of ​​the area where the defect exists on the acetabular bone. In medical imaging, the defect area is usually obtained by edge detection or segmentation of the defect area and then calculating its surface area. This parameter can be used to evaluate the size and range of the defect. The total area of ​​the acetabular bone represents the surface area of ​​the entire acetabular bone, that is, the surface area of ​​the undamaged part. In medical imaging, the total area is obtained by segmenting or contour extraction of the acetabular bone and then calculating its surface area. This parameter can provide the overall size and morphological information of the acetabular bone. The acetabular bone defect depth represents the depth of the defect area on the acetabular bone, that is, the distance from the surface to the deepest part of the defect area. In medical imaging, the defect depth can be obtained by measuring the distance from the defect area to the surface of the acetabular bone. This parameter can provide further information about the defect, such as the extent and severity of the defect. The acetabular bone density represents the density or compactness of the acetabular bone tissue. In medical imaging, the density of the acetabular bone can be estimated by analyzing the grayscale value of the X-ray or CT scan image. Bone density often correlates with the degree of osteoporosis and can therefore be used to assess the health of the acetabulum and possible abnormalities.

[0065] In a feasible implementation, the acetabular bone defect data of the target patient are analyzed, and the specific process of obtaining the patient's acetabular bone defect index is as follows: based on the acetabular bone defect data of the target patient, the ratio of the acetabular bone defect area to the total acetabular bone area is obtained, the acetabular bone density is compared with the standard value of the acetabular bone density set in the acetabular bone image database, and weights are assigned to the ratio of the acetabular bone defect area, the acetabular bone defect depth, and the ratio of the acetabular bone density; the weight coefficient of the acetabular bone defect area, the weight coefficient of the acetabular bone defect depth, and the weight coefficient of the acetabular bone density are respectively comprehensively calculated with the ratio of the acetabular bone defect area, the acetabular bone defect depth, and the ratio of the acetabular bone density to obtain the patient's acetabular bone defect index.

[0066] In this embodiment, the ratio of the acetabular bone defect area to the total area of ​​the acetabular bone represents the ratio of the calculated area of ​​the defect region on the acetabular bone to the entire acetabular bone surface area. This ratio reflects the ratio of the size of the acetabular bone defect to the entire acetabular bone. The patient's acetabular bone density is compared with a known standard value to assess whether the bone density is normal or abnormal. The normal range of bone density is usually determined by a large amount of bone density measurement data. When comprehensively considering the acetabular bone defect area, defect depth and acetabular bone density, a weight is assigned to each parameter to reflect the degree of its influence on the patient's acetabular bone defect index. After obtaining the ratios of various parameters and the weight coefficients, the patient's acetabular bone defect index can be calculated by performing a weighted comprehensive operation on these values.

[0067] In a feasible implementation, in addition to obtaining the patient's acetabular bone defect index through clinical observation and the patient's symptom description by the doctor, the patient's acetabular bone defect index can also be calculated. The specific formula of the patient's acetabular bone defect index is as follows:

[0068]

[0069] In the formula, Represents the acetabular bone defect index of the patient, which is used to evaluate the degree and impact of the acetabular bone defect of the patient. represents the acetabular bone defect area, represents the total area of ​​the acetabulum, Indicates the depth of acetabular bone defect, Indicates acetabular bone density, Indicates the standard value of acetabular bone density, indicating the normal range or standard reference value of acetabular bone density, which is used to compare with the patient's actual density. The weight coefficient of the acetabular bone defect area is the coefficient indicating the importance of the acetabular bone defect area in the overall assessment. The weight coefficient of the acetabular bone defect depth is a coefficient indicating the importance of the acetabular bone defect depth in the overall assessment. The weight coefficient of acetabular bone density represents the importance of acetabular bone density in the overall assessment.

[0070] In this embodiment, the formula comprehensively considers the area, depth and density of the patient's acetabular bone defect, as well as the importance of these parameters in the overall assessment, to calculate a comprehensive acetabular bone defect index to help doctors more accurately assess the patient's condition and develop a treatment plan.

[0071] In a feasible implementation, the specific process of establishing a three-dimensional bone model of the acetabulum bone through medical three-dimensional reconstruction based on the patient's acetabulum bone defect index and the target patient's acetabulum bone defect image is as follows: based on the patient's acetabulum bone defect index and the target patient's acetabulum bone defect image data, the acetabulum bone is segmented from the image using a region growing algorithm and an edge detection algorithm to obtain two-dimensional voxel grid data of the acetabulum bone; the two-dimensional voxel grid data is converted into a three-dimensional grid model using three-dimensional reconstruction Marching Cubes and Level Set algorithms, and the three-dimensional grid model is repaired and filled using computer-aided filling software to establish a three-dimensional model of the acetabulum bone.

[0072] In this embodiment, the region growing algorithm and the edge detection algorithm are used to process the target patient's acetabular bone defect image so as to segment the acetabular bone from the image. The region growing algorithm can group pixels into different regions based on their similarity, while the edge detection algorithm can help determine the boundaries of the object. Two-dimensional voxel grid data: The two-dimensional voxel grid data of the acetabular bone is obtained by processing the region growing algorithm and the edge detection algorithm. These data represent the shape and structure of the acetabular bone in two-dimensional space. Three-dimensional reconstruction MarchingCubes and Level Set algorithms: Three-dimensional reconstruction algorithms such as Marching Cubes and Level Set are used to convert the two-dimensional voxel grid data into a three-dimensional grid model. The Marching Cubes algorithm can reconstruct a continuous three-dimensional surface from the voxel data, while the Level Set algorithm can evolve a curve or surface in three-dimensional space. Computer-assisted filling and repair: The three-dimensional grid model is repaired and filled by computer-assisted filling software to establish a complete three-dimensional model of the acetabular bone. This step can help doctors better understand the condition of the patient's acetabular bone and guide the formulation of subsequent treatment plans.

[0073] In a feasible implementation manner, the specific process of evaluating the acetabulum three-dimensional bone model and obtaining the acetabulum three-dimensional bone model evaluation index is as follows: geometrically measure the acetabulum three-dimensional bone model through three-dimensional model software to obtain the geometric morphological data of the acetabulum three-dimensional bone model; import the acetabulum three-dimensional bone model into computer-aided engineering (CAE) software, perform motion simulation and load simulation on the acetabulum three-dimensional bone model, and obtain the functional data of the acetabulum three-dimensional bone model; analyze the geometric morphological data of the acetabulum three-dimensional bone model to obtain the acetabulum three-dimensional bone model morphological evaluation index and the acetabulum three-dimensional bone model functional evaluation index, respectively; assign weights to the acetabulum three-dimensional bone model morphological evaluation index and the acetabulum three-dimensional bone model functional evaluation index, and perform comprehensive calculations with the set acetabulum three-dimensional bone model morphological evaluation standard index and the acetabulum three-dimensional bone model functional evaluation standard index, respectively, to obtain the acetabulum three-dimensional bone model evaluation index.

[0074] In this embodiment, in addition to obtaining the morphological evaluation index of the acetabulum three-dimensional bone model through the morphological feature extraction algorithm, the morphological evaluation index of the acetabulum three-dimensional bone model can also be calculated. The specific formula of the morphological evaluation index of the acetabulum three-dimensional bone model is as follows:

[0075]

[0076] In the formula, Represents the morphological evaluation index of the acetabulum three-dimensional bone model, which is used to evaluate the morphological characteristics of the bone model. represents the cross-sectional area of ​​the acetabulum at position a, represents the volume of the acetabulum bone, represents the cross-sectional area of ​​the acetabulum of the patient at position a, represents the acetabular bone volume of the patient, Indicates the allowable deviation of the cross-sectional area of ​​the acetabulum. It is used to indicate the allowable deviation of the cross-sectional area of ​​the acetabulum. Indicates the allowable deviation value of the acetabular bone volume. It is used to indicate the allowable deviation degree of the acetabular bone volume. The cross-sectional area of ​​the acetabular bone is numbered in sequence. , a represents the acetabular cross-sectional area number, and b represents the total number of acetabular cross-sectional areas.

[0077] In addition to obtaining the acetabular three-dimensional bone model function evaluation index through biomechanical testing, the acetabular three-dimensional bone model function evaluation index can also be calculated. The specific formula for the acetabular three-dimensional bone model function evaluation index is as follows:

[0078]

[0079] In the formula, Represents the functional evaluation index of the acetabulum three-dimensional bone model, which is used to evaluate the functional characteristics of the bone model. Indicates the angle value of the joint motion range. Indicates the displacement value of the joint motion range, Indicates the angle value of the patient's joint motion range. Indicates the patient's joint range of motion displacement value, Indicates the allowable deviation value of the joint motion range angle value, used to indicate the allowable error range when measuring or simulating the joint motion range angle value, and used to evaluate the difference between the actual motion range and the ideal motion range. Indicates the allowable deviation value of the joint motion range displacement value, which is used to indicate the allowable error range when measuring or simulating the joint motion range displacement value. The weight coefficient of the joint motion range angle value is used to measure the influence of the joint motion range angle value. Represents the weight coefficient of the joint motion range displacement value, which is used to measure the influence of the joint motion range displacement value.

[0080] In a feasible implementation manner, the geometric data of the acetabulum three-dimensional bone model includes the cross-sectional area of ​​the acetabulum and the volume of the acetabulum; the functional data of the acetabulum three-dimensional bone model includes the angle value of the joint motion range and the displacement value of the joint motion range.

[0081] In this embodiment, the cross-sectional area of ​​the acetabulum indicates the area of ​​the acetabulum at a specific position. It can be used to evaluate the size and shape of the acetabulum, which is crucial for understanding the health status and degree of defects of the acetabulum. The volume of the acetabulum indicates the size of the three-dimensional space occupied by the acetabulum. By measuring the volume of the acetabulum, a more comprehensive understanding of the overall condition of the acetabulum can be obtained, including aspects such as density and shape. The joint range of motion angle value indicates the maximum angle range that the joint can reach during activity. For the acetabulum, this usually refers to the range of motion of the hip joint, that is, the degree to which the hip joint can bend, straighten and rotate in different directions. This parameter can help evaluate the function and mobility of the hip joint. The joint range of motion displacement value indicates the maximum displacement range that the joint can reach during activity. For the acetabulum, this can reflect the degree of displacement of the hip joint relative to the acetabulum during activity. This parameter can also be used to evaluate the function and stability of the hip joint.

[0082] In a feasible implementation, in addition to the doctor using a computer-aided diagnostic tool to analyze and evaluate the three-dimensional bone model of the acetabulum to obtain the three-dimensional bone model evaluation index of the acetabulum, the three-dimensional bone model evaluation index of the acetabulum can also be calculated. The specific formula of the three-dimensional bone model evaluation index of the acetabulum is as follows:

[0083]

[0084] In the formula, Represents the acetabulum 3D bone model evaluation index, which is used to evaluate the overall quality of the bone model. Represents the morphological evaluation index of the acetabulum three-dimensional bone model, which is used to evaluate the morphological characteristics of the bone model. Represents the functional evaluation index of the acetabulum three-dimensional bone model, which is used to evaluate the functional characteristics of the bone model. It represents the standard index of morphological evaluation of acetabulum three-dimensional bone model, which is used to measure the degree of conformity between the morphological evaluation results and the set standards, and to judge whether the morphological evaluation has reached the pre-set standards. It represents the functional evaluation standard index of the acetabulum three-dimensional bone model, which is used to measure the degree of conformity between the functional evaluation results and the set standards, and to judge whether the functional evaluation has reached the pre-set standards. The weight factor of the morphological evaluation index of the acetabulum three-dimensional bone model is used to adjust the weight of the morphological evaluation index in the evaluation to reflect the importance of morphological evaluation in the overall evaluation. The weight factor representing the functional evaluation index of the acetabulum three-dimensional bone model is used to adjust the weight of the functional evaluation index in the comprehensive evaluation to reflect the importance of functional evaluation in the overall evaluation.

[0085] In a feasible implementation, the specific process of analyzing whether the acetabulum three-dimensional bone model conforms to the standards based on the acetabulum three-dimensional bone model evaluation index is as follows: comprehensively analyzing the acetabulum three-dimensional bone model evaluation index and the acetabulum three-dimensional bone model evaluation standard index set in the database to obtain the acetabulum three-dimensional bone model conformity index; comparing the acetabulum three-dimensional bone model conformity index with the standard value range of the acetabulum three-dimensional bone model conformity index set in the database, when the acetabulum three-dimensional bone model conformity index exceeds the standard value range of the acetabulum three-dimensional bone model conformity index, it indicates that the acetabulum three-dimensional bone model does not conform to the standard.

[0086] In this embodiment, in addition to the doctor using computer-aided diagnostic tools to analyze and evaluate the three-dimensional bone model of the acetabulum and obtain the three-dimensional bone model evaluation index of the acetabulum, the three-dimensional bone model conformity index of the acetabulum can also be calculated. The specific formula for the three-dimensional bone model conformity index of the acetabulum is as follows:

[0087]

[0088] In the formula, Indicates that the acetabulum three-dimensional bone model conforms to the index, represents the acetabulum three-dimensional bone model evaluation index, The threshold of the acetabular three-dimensional bone model evaluation index is used to measure the acetabular three-dimensional bone model evaluation index. The allowable deviation value of the acetabulum three-dimensional bone model evaluation index is used to indicate the allowable deviation degree of the acetabulum three-dimensional bone model evaluation index.

[0089] In the embodiment of the present invention, the medical three-dimensional reconstruction of the acetabular bone defect detection and reconstruction system, by setting up an acetabular bone image acquisition module, an acetabular bone defect detection module, an acetabular bone three-dimensional reconstruction module, an acetabular bone reconstruction evaluation module, and an acetabular bone image database module, can provide doctors with a comprehensive and accurate acetabular bone defect detection and reconstruction plan, which helps to improve the efficiency and success rate of diagnosis and treatment, and also provides support for the management and research of medical data, improves the efficiency and accuracy of the medical three-dimensional reconstruction of the acetabular bone defect detection and reconstruction system, and provides doctors with better diagnosis and treatment support.

[0090] The acetabular bone defect detection and reconstruction method based on medical three-dimensional reconstruction can quantify the degree of bone defect by calculating the patient's acetabular bone defect index and the acetabular bone three-dimensional bone model evaluation index, providing doctors with objective and comparable evaluation data, which is helpful to determine the severity of the patient's condition and formulate treatment plans, evaluate the quality and accuracy of the reconstruction model, ensure that the reconstruction results are consistent with the patient's actual situation, and improve the credibility of the reconstruction model and the reliability of clinical application.

[0091] like Figure 2 FIG. 1 is a flowchart of a method for detecting and reconstructing acetabular bone defects based on medical three-dimensional reconstruction according to an exemplary embodiment. The method is used in a system for detecting and reconstructing acetabular bone defects based on medical three-dimensional reconstruction. Figure 2 , including the following steps:

[0092] S1: Acquire the image data of acetabular bone defect of the target patient;

[0093] S2: detecting the acetabular bone defect image of the target patient, analyzing the degree of the acetabular bone defect of the target patient, obtaining the acetabular bone defect data of the target patient, analyzing the acetabular bone defect data of the target patient, and obtaining the acetabular bone defect index of the target patient;

[0094] S3: Based on the acetabular bone defect index of the target patient and the acetabular bone defect image of the target patient, a three-dimensional bone model of the acetabular bone is established through medical three-dimensional reconstruction;

[0095] S4: Evaluate the acetabulum three-dimensional bone model to obtain the acetabulum three-dimensional bone model evaluation index; based on the acetabulum three-dimensional bone model evaluation index, analyze whether the acetabulum three-dimensional bone model is qualified;

[0096] S5: Store the acetabular bone defect image, acetabular bone defect index and acetabular bone three-dimensional bone model evaluation index of the target patient.

[0097] Optionally, in S1, the acetabular bone defect image of the target patient is detected, the degree of the acetabular bone defect of the target patient is analyzed, and the acetabular bone defect data of the target patient is obtained, including:

[0098] Preprocessing the acetabular bone defect images of the target patient;

[0099] The pre-processed acetabular bone defect image of the target patient is transmitted to the medical imaging software to obtain the acetabular bone defect data of the target patient;

[0100] The acetabular bone defect data of the target patients include: acetabular bone defect area, acetabular bone total area, acetabular bone defect depth and acetabular bone density.

[0101] Optionally, in S1, analyzing the acetabular bone defect data of the target patient to obtain the acetabular bone defect index of the target patient includes:

[0102] Based on the acetabular bone defect data of the target patient, the ratio of the acetabular bone defect area to the total acetabular bone area is obtained;

[0103] Obtaining a standard value of acetabular bone density preset in an acetabular bone image database, comparing the acetabular bone density with the standard value, and obtaining a ratio of the acetabular bone density;

[0104] And according to the ratio of the acetabular bone defect area, the acetabular bone defect depth and the acetabular bone density, weight allocation is performed to obtain the weight coefficient of the acetabular bone defect area, the weight coefficient of the acetabular bone defect depth and the weight coefficient of the acetabular bone density;

[0105] The weight coefficient of acetabular bone defect area, the weight coefficient of acetabular bone defect depth and the weight coefficient of acetabular bone density are respectively comprehensively calculated with the ratio of acetabular bone defect area, the ratio of acetabular bone defect depth and acetabular bone density to obtain the acetabular bone defect index of the target patient.

[0106] Optionally, the acetabular defect index of the target patient's hip is calculated according to the following formula:

[0107]

[0108] In the formula, represents the acetabular bone defect index of the target patient, represents the acetabular bone defect area, represents the total area of ​​the acetabulum, Indicates the depth of acetabular bone defect, Indicates acetabular bone density, Indicates the standard value of acetabular bone density, represents the weight coefficient of acetabular bone defect area, represents the weight coefficient of the acetabular bone defect depth, Represents the weight coefficient of acetabular bone density.

[0109] Optionally, in S3, based on the acetabular bone defect index of the target patient and the acetabular bone defect image of the target patient, a three-dimensional bone model of the acetabular bone is established through medical three-dimensional reconstruction, including:

[0110] Based on the acetabular bone defect index and acetabular bone defect image data of the target patient, the acetabular bone is segmented from the image using a region growing algorithm and an edge detection algorithm to obtain two-dimensional voxel grid data of the acetabular bone;

[0111] The 2D voxel grid data were converted into a 3D grid model using the 3D reconstruction Marching Cubes and Level Set algorithms. The 3D grid model was repaired and filled using computer-aided filling software to establish a 3D bone model of the acetabulum.

[0112] Optionally, in S4, the acetabulum three-dimensional bone model is evaluated to obtain an acetabulum three-dimensional bone model evaluation index, including:

[0113] The geometrical measurement of the acetabulum three-dimensional bone model is performed by using three-dimensional model software to obtain geometrical morphological data of the acetabulum three-dimensional bone model;

[0114] The acetabulum three-dimensional bone model is imported into computer-aided engineering (CAE) software, motion simulation and load simulation are performed on the acetabulum three-dimensional bone model, and functional data of the acetabulum three-dimensional bone model is obtained;

[0115] The geometric morphological data of the acetabulum three-dimensional bone model are analyzed to obtain the morphological evaluation index of the acetabulum three-dimensional bone model and the functional evaluation index of the acetabulum three-dimensional bone model;

[0116] The weights are assigned to the acetabulum three-dimensional bone model morphological evaluation index and the acetabulum three-dimensional bone model functional evaluation index, and they are respectively comprehensively calculated with the preset acetabulum three-dimensional bone model morphological evaluation standard index and the acetabulum three-dimensional bone model functional evaluation standard index to obtain the acetabulum three-dimensional bone model evaluation index.

[0117] Optionally, the geometric data of the acetabulum three-dimensional bone model includes: the cross-sectional area of ​​the acetabulum and the volume of the acetabulum;

[0118] The functional data of the acetabulum three-dimensional bone model includes: a joint motion range angle value and a joint motion range displacement value.

[0119] Optionally, the acetabulum three-dimensional bone model evaluation index is calculated according to the following formula:

[0120]

[0121] In the formula, represents the acetabulum three-dimensional bone model evaluation index, Represents the morphological evaluation index of the acetabulum three-dimensional bone model, Represents the functional evaluation index of the acetabulum three-dimensional bone model, Represents the standard index for morphological evaluation of the acetabulum three-dimensional bone model. Represents the standard index for evaluating the function of the acetabulum three-dimensional bone model. represents the weight factor of the morphological evaluation index of the acetabulum three-dimensional bone model, Represents the weight factor of the functional evaluation index of the acetabulum three-dimensional bone model.

[0122] Optionally, in S4, based on the acetabulum 3D bone model evaluation index, analyzing whether the acetabulum 3D bone model is qualified includes:

[0123] Comprehensively analyze the acetabulum three-dimensional bone model evaluation index and the acetabulum three-dimensional bone model evaluation standard index preset in the database to obtain the acetabulum three-dimensional bone model conformity index;

[0124] Based on the acetabulum three-dimensional bone model compliance index, it is compared with the standard value range of the acetabulum three-dimensional bone model compliance index preset in the database. When the acetabulum three-dimensional bone model compliance index exceeds the standard value range of the acetabulum three-dimensional bone model compliance index, it indicates that the acetabulum three-dimensional bone model does not meet the standards; when the acetabulum three-dimensional bone model compliance index is within the standard value range of the acetabulum three-dimensional bone model compliance index, it indicates that the acetabulum three-dimensional bone model meets the standards.

[0125] In this embodiment, by calculating the patient's acetabular bone defect index and the acetabular bone three-dimensional bone model evaluation index, the system can quantify the extent of the bone defect and provide doctors with objective and comparable evaluation data, which helps to determine the severity of the patient's condition and formulate a treatment plan.

[0126] Figure 3 is a schematic diagram of the structure of an acetabular bone defect detection and reconstruction device based on medical three-dimensional reconstruction provided by an embodiment of the present invention, such as Figure 3 As shown, the acetabular bone defect detection and reconstruction device based on medical three-dimensional reconstruction may include the above Figure 1 The acetabular bone defect detection and reconstruction system based on medical three-dimensional reconstruction is shown. Optionally, the acetabular bone defect detection and reconstruction device 410 based on medical three-dimensional reconstruction may include a first processor 2001 .

[0127] Optionally, the acetabular bone defect detection and reconstruction device 410 based on medical three-dimensional reconstruction may further include a memory 2002 and a transceiver 2003 .

[0128] The first processor 2001, the memory 2002 and the transceiver 2003 may be connected via a communication bus.

[0129] Combine the following Figure 3 The components of the acetabular bone defect detection and reconstruction device 410 based on medical three-dimensional reconstruction are specifically introduced:

[0130] The first processor 2001 is the control center of the acetabular bone defect detection and reconstruction device 410 based on medical three-dimensional reconstruction, which can be a processor or a general term for multiple processing elements. For example, the first processor 2001 is one or more central processing units (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiment of the present invention, such as one or more microprocessors (digital signal processor, DSP), or one or more field programmable gate arrays (field programmable gate array, FPGA).

[0131] Optionally, the first processor 2001 can perform various functions of the acetabular bone defect detection and reconstruction device 410 based on medical three-dimensional reconstruction by running or executing a software program stored in the memory 2002 and calling data stored in the memory 2002 .

[0132] In a specific implementation, as an embodiment, the first processor 2001 may include one or more CPUs, such as Figure 3 CPU0 and CPU1 are shown in FIG.

[0133] In a specific implementation, as an embodiment, the acetabular bone defect detection and reconstruction device 410 based on medical three-dimensional reconstruction may also include multiple processors, such as Figure 3 The first processor 2001 and the second processor 2004 are shown in FIG. Each of these processors may be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). The processor here may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0134] The memory 2002 is used to store the software program for executing the solution of the present invention, and is controlled to be executed by the first processor 2001. The specific implementation method can refer to the above method embodiment, which will not be repeated here.

[0135] Optionally, the memory 2002 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 2002 may be integrated with the first processor 2001, or may exist independently, and may be accessed through the interface circuit ( Figure 3 (not shown) is coupled to the first processor 2001, which is not specifically limited in this embodiment of the present invention.

[0136] The transceiver 2003 is used to communicate with a network device or a terminal device.

[0137] Optionally, the transceiver 2003 may include a receiver and a transmitter ( Figure 3 The receiver is used to implement a receiving function, and the transmitter is used to implement a sending function.

[0138] Optionally, the transceiver 2003 may be integrated with the first processor 2001, or may exist independently, and may be connected to the acetabular bone defect detection and reconstruction device 410 based on medical three-dimensional reconstruction through an interface circuit ( Figure 3 (not shown) is coupled to the first processor 2001, which is not specifically limited in this embodiment of the present invention.

[0139] It should be noted that Figure 3 The structure of the acetabular bone defect detection and reconstruction device 410 based on medical three-dimensional reconstruction shown in the figure does not constitute a limitation on the router. The actual knowledge structure recognition device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0140] In addition, the technical effects of the acetabular bone defect detection and reconstruction device 410 based on medical three-dimensional reconstruction can refer to the technical effects of the acetabular bone defect detection and reconstruction method based on medical three-dimensional reconstruction described in the above method embodiment, and will not be repeated here.

[0141] It should be understood that the first processor 2001 in the embodiment of the present invention may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0142] It should also be understood that the memory in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0143] The above embodiments can be implemented in whole or in part by software, hardware (such as circuits), firmware or any other combination. When implemented by software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable system. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (such as infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more available media sets. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state hard disk.

[0144] It should be understood that the term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship, but it may also indicate an "and / or" relationship. Please refer to the context for specific understanding.

[0145] In the present invention, "at least one" means one or more, and "plurality" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0146] It should be understood that in various embodiments of the present invention, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0147] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0148] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices, systems and units can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0149] In the several embodiments provided by the present invention, it should be understood that the disclosed devices, systems and methods can be implemented in other ways. For example, the system embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of the system or unit, which can be electrical, mechanical or other forms.

[0150] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0151] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0152] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program codes.

[0153] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A acetabular bone defect detection and reconstruction system based on medical three-dimensional reconstruction, characterized in that: The system comprises: an acetabular bone image acquisition module, an acetabular bone defect detection module, an acetabular bone three-dimensional reconstruction module, an acetabular bone reconstruction evaluation module and an acetabular bone image database module; The acetabulum bone image acquisition module is used to acquire the acetabulum bone defect image of the target patient; The acetabular bone defect detection module is used to detect the acetabular bone defect image of the target patient, analyze the degree of the acetabular bone defect of the target patient, and obtain the acetabular bone defect data of the target patient; analyze the acetabular bone defect data of the target patient to obtain the acetabular bone defect index of the target patient; The method of detecting the acetabular bone defect image of the target patient, analyzing the degree of the acetabular bone defect of the target patient, and obtaining the acetabular bone defect data of the target patient includes: preprocessing the acetabular bone defect image of the target patient; transmitting the preprocessed acetabular bone defect image to the medical imaging software to obtain the acetabular bone defect data of the target patient; the acetabular bone defect data of the target patient includes: acetabular bone defect area, acetabular bone total area, acetabular bone defect depth and acetabular bone density; The acetabular bone defect data of the target patient are analyzed to obtain the acetabular bone defect index of the target patient, including: obtaining the ratio of the acetabular bone defect area to the total acetabular bone area based on the acetabular bone defect data of the target patient; obtaining the standard value of acetabular bone density preset in the acetabular bone image database, comparing the acetabular bone density with the standard value, and obtaining the ratio of acetabular bone density; performing weight allocation according to the ratio of acetabular bone defect area, the acetabular bone defect depth and the ratio of acetabular bone density, and obtaining the weight coefficient of acetabular bone defect area, the weight coefficient of acetabular bone defect depth and the weight coefficient of acetabular bone density; performing comprehensive calculation on the weight coefficient of acetabular bone defect area, the weight coefficient of acetabular bone defect depth and the weight coefficient of acetabular bone density, respectively, with the ratio of acetabular bone defect area, the acetabular bone defect depth and the ratio of acetabular bone density, and obtaining the acetabular bone defect index of the target patient; The acetabular defect index of the target patient's hip is calculated according to the following formula: In the formula, αlg represents the acetabular bone defect index of the target patient, KHG represents the acetabular bone defect area, FDA represents the total acetabular bone area, ghu represents the acetabular bone defect depth, rho represents the acetabular bone density, rty represents the standard value of acetabular bone density, ω1 represents the weight coefficient of acetabular bone defect area, ω2 represents the weight coefficient of acetabular bone defect depth, and ω3 represents the weight coefficient of acetabular bone density; The acetabular bone three-dimensional reconstruction module is used to establish a three-dimensional bone model of the acetabular bone through medical three-dimensional reconstruction based on the acetabular bone defect index of the target patient and the acetabular bone defect image of the target patient; it includes: Based on the acetabular bone defect index and acetabular bone defect image of the target patient, the acetabular bone is segmented from the image using the region growing algorithm and the edge detection algorithm to obtain the two-dimensional voxel grid data of the acetabular bone; the three-dimensional reconstruction MarchingCubes and Level Set algorithms are used to convert the two-dimensional voxel grid data into a three-dimensional grid model, and the three-dimensional grid model is repaired and filled by computer-aided filling software to establish a three-dimensional bone model of the acetabular bone; The acetabular bone reconstruction evaluation module is used to evaluate the acetabular bone three-dimensional bone model and obtain the acetabular bone three-dimensional bone model evaluation index; based on the acetabular bone three-dimensional bone model evaluation index, analyze whether the acetabular bone three-dimensional bone model is qualified; The acetabular bone image database module is used to store the acetabular bone defect image, acetabular bone defect index and acetabular bone three-dimensional bone model evaluation index of the target patient.

2. The acetabular bone defect detection and reconstruction system based on medical three-dimensional reconstruction according to claim 1, characterized in that: The acetabulum three-dimensional bone model is evaluated to obtain the acetabulum three-dimensional bone model evaluation index, including: The geometrical measurement of the acetabulum three-dimensional bone model is performed by using three-dimensional model software to obtain geometrical morphological data of the acetabulum three-dimensional bone model; The acetabulum three-dimensional bone model is imported into computer-aided engineering (CAE) software, motion simulation and load simulation are performed on the acetabulum three-dimensional bone model, and functional data of the acetabulum three-dimensional bone model is obtained; The geometric morphological data of the acetabulum three-dimensional bone model are analyzed to obtain the morphological evaluation index of the acetabulum three-dimensional bone model and the functional evaluation index of the acetabulum three-dimensional bone model; The weights are assigned to the acetabulum three-dimensional bone model morphological evaluation index and the acetabulum three-dimensional bone model functional evaluation index, and they are respectively comprehensively calculated with the preset acetabulum three-dimensional bone model morphological evaluation standard index and the acetabulum three-dimensional bone model functional evaluation standard index to obtain the acetabulum three-dimensional bone model evaluation index.

3. The acetabular bone defect detection and reconstruction system based on medical three-dimensional reconstruction according to claim 2, characterized in that: The geometric data of the acetabulum three-dimensional bone model include: the cross-sectional area of ​​the acetabulum and the volume of the acetabulum; The functional data of the acetabulum three-dimensional bone model includes: a joint motion range angle value and a joint motion range displacement value.

4. The acetabular bone defect detection and reconstruction system based on medical three-dimensional reconstruction according to claim 3, characterized in that: The acetabulum three-dimensional bone model evaluation index was calculated according to the following formula: In the formula, βde represents the acetabulum three-dimensional bone model evaluation index, γfg represents the acetabulum three-dimensional bone model morphological evaluation index, δvn represents the acetabulum three-dimensional bone model functional evaluation index, DCV represents the acetabulum three-dimensional bone model morphological evaluation standard index, CBN represents the acetabulum three-dimensional bone model functional evaluation standard index, σ1 represents the weight factor of the acetabulum three-dimensional bone model morphological evaluation index, and σ2 represents the weight factor of the acetabulum three-dimensional bone model functional evaluation index.

5. The acetabular bone defect detection and reconstruction system based on medical three-dimensional reconstruction according to claim 4, characterized in that: Based on the acetabulum 3D bone model evaluation index, the acetabulum 3D bone model is analyzed to determine whether it is qualified, including: Comprehensively analyze the acetabulum three-dimensional bone model evaluation index and the acetabulum three-dimensional bone model evaluation standard index preset in the database to obtain the acetabulum three-dimensional bone model conformity index; Based on the acetabulum three-dimensional bone model compliance index, it is compared with the standard value range of the acetabulum three-dimensional bone model compliance index preset in the database. When the acetabulum three-dimensional bone model compliance index exceeds the standard value range of the acetabulum three-dimensional bone model compliance index, it indicates that the acetabulum three-dimensional bone model does not meet the standards; when the acetabulum three-dimensional bone model compliance index is within the standard value range of the acetabulum three-dimensional bone model compliance index, it indicates that the acetabulum three-dimensional bone model meets the standards.

6. A method for detecting and reconstructing acetabular bone defects based on medical three-dimensional reconstruction, using the system for detecting and reconstructing acetabular bone defects based on medical three-dimensional reconstruction as described in any one of claims 1 to 5, characterized in that: The following steps are involved: S1: Acquire the image data of acetabular bone defect of the target patient; S2: detecting the acetabular bone defect image of the target patient, analyzing the degree of the acetabular bone defect of the target patient, obtaining the acetabular bone defect data of the target patient, analyzing the acetabular bone defect data of the target patient, and obtaining the acetabular bone defect index of the target patient; S3: Based on the acetabular bone defect index of the target patient and the acetabular bone defect image of the target patient, a three-dimensional bone model of the acetabular bone is established through medical three-dimensional reconstruction; S4: Evaluate the acetabulum three-dimensional bone model to obtain the acetabulum three-dimensional bone model evaluation index; Based on the acetabulum 3D bone model evaluation index, analyze whether the acetabulum 3D bone model is qualified; S5: Store the acetabular bone defect image, acetabular bone defect index and acetabular bone three-dimensional bone model evaluation index of the target patient.

Images