Head thin-layer CT scanning data based frontal bone angle measurement method

Abstract

The invention discloses a head thin-layer CT scanning data based frontal bone angle measurement method. According to the invention, head thin-layer CT scanning DICOM image data of a frontal suture premature closure patient is imported by using MINICS software, and a reconstructed three-dimensional image of the head of patient skull is acquired according to the difference of human body bone CT density values. A plane required to be measured is acquired by using methods such as region growing and orthogonal cutting in the MIMICS software, and a frontal bone angle is measured accurately. The method disclosed by the invention is simple in operation and accurate in result, so that a reliable method for measuring the frontal bone angle of frontal suture premature closure child patients is provided, an error caused by human factors such as operations of a doctor in head CT scanning can be significantly reduced, and the method has high accuracy in estimating both the disease severity and surgery effects of the child patients. The frontal bone angle measurement method is simple and convenient to operate and low in time consumption, and does not need to be equipped with professionals, thereby being widely applicable to front-line clinical work.

Description

technical field [0001] The invention belongs to the field of craniofacial plastic surgery, and mainly relates to a method for measuring skull-frontal bone angle after processing thin-layer CT scan data of the skull by using computer three-dimensional reconstruction software (mimics15.0). Background technique [0002] Triangular head deformity, also known as frontal suture syndrome, is a rare type of craniosynostosis, accounting for 7%-23% of craniosynostosis, and its incidence rate accounts for about 1 / 2 of the newborn population. Between 7500 and 1 / 15000, the number and proportion of patients with frontal suture premature closure have increased significantly in recent years. The etiology and pathogenesis of frontal suture syndrome are not yet clear. In the normal population, the frontal suture is the only cranial suture that closes before one year old, and it closes at about 3 to 9 months after birth. Premature suture closure, resulting in frontal ridge protruding from the...

AI Technical Summary

Problems solved by technology

[0003] At present, the angle of the frontal bone angle is mainly measured based on two-dimensional cranial CT images. This measurement method has the following shortcomings: 1. Radiologists have little understanding of the disease, and different radiologists choose the baseline of CT scans vary, resulting in inaccurate measurements

2. Due to the thick slices of ordinary head CT, the required plane may not be obtained after the film is produced, resulting in measurement errors

The above factors will lead to a decrease in the accuracy of the measurement, which in turn will affect the accuracy of the diagnosis. Therefore, we need to find a measurement method with a higher degree of freedom and better accuracy to improve the prognosis of children with frontal suture early closure. diagnostic accuracy

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