Automatic Cobb angle measurement method based on spine layered reconstruction

Abstract

The invention discloses an automatic Cobb angle measurement method based on spine hierarchical reconstruction. The method comprises the following steps: (1) inputting a cross section CT sequence image, preprocessing DICOM original data, performing hierarchical reconstruction to obtain a superposed sagittal graph, selecting a sagittal range of a spine by adopting a template matching method, and then selecting a middle one-third position interval to reconstruct a skeleton coronal graph; (2) based on a deep learning network, training a vertebra segmentation model based on a skeleton coronal diagram, and adopting the model to perform detection segmentation on each section of vertebra of a spine and performing threshold processing to optimize a vertebra gap; (3) extracting a central point of each section of vertebra, and performing curve fitting on a central point set by using a hexatic polynomial to obtain a spine curve; and (4) iteratively solving the Cobb angle by calculating the curvature between the feature points in the spine curve.

Description

technical field [0001] The invention relates to the field of medical artificial intelligence, and in particular proposes a method for automatically measuring Cobb angles based on spine layered reconstruction. Background technique [0002] In recent years, medical imaging technology and artificial intelligence technology have been developing rapidly. Computed tomography is widely used in clinical diagnosis. The study of spinal lesions based on CT scanning combined with deep learning and smart medical care has extremely important practical significance and research value. Using artificial intelligence technology to process and analyze medical image data can provide a powerful auxiliary function for modern medical diagnosis. [0003] When judging scoliosis clinically, Cobb angle is a commonly used research object, and the size of Cobb angle can more accurately reflect the severity of human scoliosis. At present, the Cobb angle is mainly measured manually. First, the upper and ...

AI Technical Summary

Problems solved by technology

At present, the Cobb angle is mainly measured manually. First, the upper and lower vertebrae on the side with the most obvious scoliosis are found in the spine image as the upper and lower endplates, and then the straight lines passing through the upper and lower endplates are manually drawn, and finally two straight lines are measured with a protractor. The angle between is the Cobb angle, and the manual measurement speed is too slow, it takes a lot of manpower and time, and the accuracy depends on the professionalism and proficiency of the doctor

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