遵义医科大学学报2023，Vol.46Issue(12)：1171-1175,5.
基于重心点测量颅颌面CT影像高精度三维配准的研究
A research on high-precision 3D registration of craniofacial CT based on inten-sity centroid measurement
摘要
Abstract
Objective To establish a high-precision 3D registration method of craniofacial CT based on intensity centroid measurement for evaluating CT in different periods.Methods 20 pairs of pre-and post-treatment cranio-facial 3D CT data were collected from January 2016 to December 2021.With 3D Slicersoftware,the crista galli and the bilateral ossicular bones were segmented,and their centroids were calculated separately.The rigid regis-tration was then performed based on these three fiducial points.The distance between the two sets of pre-and post-treatment cranial base fiducial points was analyzed by paired t-test.The registration result was analyzed by colored distance map.Results Intraclass correlation coefficient showed excellent reliability(0.878).There was no statistical difference(P＞0.05)in the distances between the pre-and post-treatment cranial base fiducial points.The CT images were registered with high accuracy.Conclusion 3D registration method based on intensity centroid measurement has the characteristics of objectivity,precision,efficiency and credibility,and can be widely used for CT image research in different periods such as jaw defect reconstruction,orthognathic surgery and jaw tumor treatment,etc.关键词
三维匹配/骨密度/重心点/颅底Key words
3D registration/bone density/centroids/cranial base分类
医药卫生引用本文复制引用
肖晨亮,周亚光,陈颖坤,徐路,赵徐达,黄锦仪,孙丽君..基于重心点测量颅颌面CT影像高精度三维配准的研究[J].遵义医科大学学报,2023,46(12):1171-1175,5.基金项目
中国解放军联勤保障部队第920医院院管课题(NO:2023YGJ02). （NO:2023YGJ02）
