An automatic grading method for osteoarthritis

An automatic grading, osteoarthritis technology, applied in the medical field, can solve problems such as too subjective, heavy workload, and differences in grading results

Active Publication Date: 2021-09-14
NINGBO UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

At present, the diagnosis method of osteoarthritis is to perform manual KL grading by doctors watching X-ray films, which is often too subjective, and the grading results of different doctors will inevitably be different, and the workload is heavy

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  • An automatic grading method for osteoarthritis
  • An automatic grading method for osteoarthritis
  • An automatic grading method for osteoarthritis

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Embodiment Construction

[0048] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0049] Such as figure 1 As shown, an automatic grading method for osteoarthritis includes the following steps:

[0050] Step (1), convert the bone joint X-ray film image of DICOM format into the bone joint X-ray film image of BMP format, obtain the image of BMP format; Wherein, in the present embodiment, adopt existing technology to convert the bone joint X-ray film image of DICOM format Joint X-ray images are converted into bone and joint X-ray images in BMP format;

[0051] Step (2), the image of the BMP format that step (1) is obtained is finely intercepted, obtains the first image that only contains relevant joint information;

[0052] Step (3), image edge detection is carried out to the first image, obtains the second image;

[0053] Wherein, image edge extraction comprises the following steps:

[0054] Step (3-1), filtering the first...

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Abstract

A method for automatic grading of osteoarthritis, comprising the following steps: step (1), converting the bone joint X-ray film image of DICOM format into the bone joint X-ray film image of BMP format, and obtaining the image of BMP format; Step (2) , the image of the BMP format that step (1) is obtained is finely intercepted, obtains the first image that only contains relevant joint information; Step (3), carries out image edge detection to the first image, obtains the second image; Step (4 ), carry out de-redundancy processing to the second image, obtain the third image; step (5), carry out normalization processing to the third image, obtain the fourth image; step (6), calculate the joint gap in the fourth image; step (7) According to the grading standard of the joint space obtained in step (6) compared with the joint space of the standard image, the grading result is obtained. It can quickly and effectively automatically grade and judge the X-ray images of the subjects' bones and joints, which improves the diagnostic efficiency of doctors.

Description

technical field [0001] The invention relates to the medical field, in particular to an automatic grading method for osteoarthritis. Background technique [0002] Osteoarthritis (OA) is an age-related degenerative joint disease, and its clinical manifestations are mainly progressive joint pain and limited mobility, seriously affecting the quality of life of patients. X-ray film diagnosis is the main diagnostic method for clinical and scientific research. The diagnostic criteria were proposed by Kellgren JH and Lawrence JS, referred to as KL classification. The KL grading standard can be briefly described as follows (osteoarthritis is divided into 5 grades): grade 0, normal, the joint space is normal, and the boundary is smooth and regular; grade 1, the joint space is suspected to be narrowed, and the osteophyte is suspected to become rough, Significantly increased curvature, all osteophytes; Grade 2, obvious osteophytes and / or suspected joint space narrowing; Grade 3, modera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/13G06T7/155G16H30/20
CPCG06T7/0012G06T2207/10116G06T2207/30008G06T7/13G06T7/155G16H30/20
Inventor 陈志荣李雅丽尹天鹤陈征颜倩倩
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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