Method and system for measuring coverage rate of cartilage head cotyle in front of hip joint and application of method and system

A hip and coverage technology, applied in the field of medical testing, can solve the problems of inability to accurately and intuitively evaluate the development of acetabular cartilage and femoral head cartilage, and the anatomical shape of acetabular cartilage is not clear, and achieves the goal of improving detection accuracy. Effect

Pending Publication Date: 2022-05-27
山东省医学影像学研究所 +1
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Problems solved by technology

[0003] Ordinary X-ray plain film examination and computed tomography (Computed Tomography, CT) examination cannot accurately and intuitively evaluate the development of acetabular cartilage and femoral head cartilage. The presentation is not clear

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  • Method and system for measuring coverage rate of cartilage head cotyle in front of hip joint and application of method and system
  • Method and system for measuring coverage rate of cartilage head cotyle in front of hip joint and application of method and system
  • Method and system for measuring coverage rate of cartilage head cotyle in front of hip joint and application of method and system

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Embodiment Construction

[0031] In the embodiment of the present invention, considering that the femoral head is a three-dimensional structure, L-CAHI can only reflect the lateral coverage of the cartilaginous acetabulum to the femoral head. Significantly incomplete coverage can also lead to dislocation or subluxation of the femoral head.

[0032] Currently, there are three imaging methods for measuring the anterior acetabular coverage: one is hip ultrasound, the other is hip CT, and the third is hip arthrography. Among them, ultrasound examination requires a high degree of operator proficiency, human error is unavoidable, and there is a high false positive rate, and because of the limitation of imaging principle, hip joint ultrasound examination is not suitable for children over 3 years old; CT; Scans are highly radioactive and have limited ability to distinguish soft tissue from unossified epiphysis; in addition, arthrography of the hip is invasive and not suitable for long-term follow-up of childre...

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Abstract

The embodiment of the invention discloses a method and system for measuring the coverage rate of a cartilage head cotyle in front of a hip joint and application of the method and system. The method comprises the steps of determining a scanning range of an oblique sagittal plane of a high-resolution fat suppression proton density weighted image of a unilateral hip joint based on coronal plane and axial plane magnetic resonance scanning images of double hip joints of a measured object; acquiring an oblique sagittal plane magnetic resonance scanning image of the high-resolution fat suppression proton density weighted image of the unilateral hip joint based on the scanning range of the oblique sagittal plane; based on the oblique sagittal plane magnetic resonance scanning image, the distance from the front edge of the acetabular cartilage to the rear edge of the femoral head cartilage and the maximum front-back diameter of the femoral head are obtained; and taking the ratio of the distance from the front edge of the acetabular cartilage to the rear edge of the femoral head cartilage to the maximum front-back diameter of the femoral head as the coverage rate of the cartilage head cotyle in front of the hip joint. According to the technical scheme, the detection accuracy of the developmental dysplasia of the hip joint can be improved.

Description

technical field [0001] The invention relates to the technical field of medical detection, in particular to a method and device for measuring the acetabular coverage of the cartilaginous femoral head in front of the hip joint, and a detection method and system for developmental dysplasia of the hip using the same. Background technique [0002] Developmental Dysplasia of the Hip (DDH) is a common pediatric orthopaedic disease caused by defective acetabular development leading to poor coverage of the femoral head by the acetabulum. Due to the poor acetabular coverage of the femoral head, it will lead to long-term biomechanical abnormalities of the femoral head, gradual subluxation or dislocation of the femoral head, cartilage degeneration in the weight-bearing area, avascular necrosis of the femoral head, and even severe osteoarthritis in the future. . Early diagnosis and timely treatment can restore the normal relationship between the acetabulum and the femoral head, which is...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/055
CPCA61B5/055A61B5/4514
Inventor 王光彬张雯双朱锦霞孙聪
Owner 山东省医学影像学研究所
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