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Study on the Indexes of Forensic Identification by the Occlusal-Facial Digital Radiology
Author(s): GAO Dong, WANG Hu, HU Jin-liang, XU Zhe, DENG Zhen-hua
Pages: 32-
35,38
Year: 2006
Issue:
1
Journal: JOURNAL OF FORENSIC MEDICINE
Keyword: 法医放射学; 法医牙科学; 数字X线片; 同一认定; 计算机辅助头影测量;
Abstract: 目的探讨颌面数字X线片(Digital Radiology,DR)的全口牙型32位编码和测量6项骨性指标的变化特征,评估其在法医学同一认定的价值.方法随机选取颌面DR全景片300例,按设计的编码标准和原则对其全口牙型逐一编码,分析编码的多样性;随机选取颌面DR侧位片100例,由口腔放射科医生和培训过的法医研究生各一人对6项骨性指标(N-S,N-Me,Cd-Gn,Cd-Go,NP-SN,MP-SN)进行准确测量,计算指标的变异系数(CV),并对两人测量结果的一致性进行相关分析.结果(1)300例个人全口牙型编码,总体多样性为75%;牙齿有病变或治疗组的多样性为99.53%;(2)颌面DR侧位片中6项指标变异系数较大;(3)两次测量结果的相关系数均接近1,表明所选指标的测量结果稳定,有高度一致性.结论颌面DR全景片全口牙型32位编码和颌面DR侧位片中6项骨性指标可用于同一认定.
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