额窦同一认定的研究

Personal Identification Using the Frontal Sinus

本研究对额窦形态结构的观察,通过额窦的同一认定,进行个人识别;另一方面了解南方人的额窦形态结构特点,为法医人类学和法医放射学积累资料。从九个方面观察正位颅骨X光片的额窦形态结构;用22项形态特征指标对额窦进行描述,利用数字编码对额窦的指标进行评分。22项形态特征指标变异程度和个人识别率在0.46861—0.91120之间;22项指标累积变异程度和个人识别率为0.9999999999988,22项指标评分相同的概率为1.18366×10-12,有7.5×1011以上种组合形式。所有样本的22项指标组合评分不同。所观察的特征在不同个体间具有高度变异性,是进行个人识别的较好指标,本研究建立的这套观察指标和方法具有较好的个人识别能力。

The purpose of this research was to observe and record characteristics of the frontal sinus in a southern Chinese Han population, and to apply this population data to the fields of forensic anthropology and forensic radiology. A total of nine aspects of the sinus that included 22 characteristic indices were observed and recorded. These frontal sinus indices were scored by a series of digital codes whose diversities and discrimination probabilities ranged from 0.46861 to 0.91120. The cumulative diversity and discrimination probabilities of these 22 indices were 0.9999999999988, with the match probability being 1. 18366 × 10^-12, a result of more than 7.5× 10^11 possible combinations. It was noted that all 22 characteristic indices were variable to each individual, and that they were strong markers for personal identification of the frontal sinus. It was also noted that these characteristic indices and this identification method developed in this study show excellent discrimination probabilities.