Calculation method of vertebral rotation angle

Abstract

The invention discloses a method for calculating the rotation angle of the spine, which includes performing filtering and feature extraction processing on the back image group of the human body to obtain the coordinate array of the center of the back spine, using cubic spline interpolation processing to obtain the center line of the back spine, and calculating the spine according to the center line of the back spine The length of the main body, the vertical offset of the top vertebra of the back midline of each scoliosis, the chord length of each scoliosis, the coordinates of the point with the largest offset of each scoliosis, and the width of the spine corresponding to the point with the largest offset of each scoliosis, to solve the spine Scoliosis calculation model, solve the calculation model of the deviation between the center line of the spine and the center line of the back spine, calculate the coordinates of the center line of the spine, and calculate the rotation angle of the spine. On the basis of obtaining the midline of the back spine, the invention realizes accurate measurement of the rotation angle of the spine by constructing a calculation model of scoliosis and a calculation model of the deviation degree between the center line of the spine and the midline of the back spine, and has wide application value.

Description

technical field [0001] The invention belongs to the technical field of image measurement, and in particular relates to a method for calculating a vertebra rotation angle. Background technique [0002] Scoliosis, also known as scoliosis, is caused by the deviation of the spine segment from the centerline of the back on the coronal plane of the human body and bending to the side. Usually accompanied by spinal rotation and sagittal kyphosis or lordosis and other symptoms. There are many factors that cause scoliosis, among which the undetermined cause is called idiopathic scoliosis. Liu Shangli and others found that idiopathic patients accounted for 96.9% of scoliosis in the general survey of scoliosis. The measurement standards for scoliosis are not exactly the same. Some scholars judge patients with Cobb angles greater than 5° measured in the coronal plane as scoliosis, and generally judge patients with Cobb angles greater than 10° as scoliosis . [0003] Liu Shangli and ot...

AI Technical Summary

Problems solved by technology

[0008] Because the physical measurement method is based on manual detection, manual detection becomes quite cumbersome and inefficient when conducting a census on a large number of people, and doctors will cause misjudgments and misjudgments due to fatigue

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