제주지역거주민 안면두개골 3차원 영상에서 법의인류학적 접근

Abstract

The purpose of this study is to grasp the morphological characteristics by sex distinction and stature of Jeju population using the craniofacial 3D-CT images of them and to investigate the differences of the morphological characteristic in comparison with those of several samples from the Northeast Asia and Korea. This study also aims to establish standards for comparative material to identify the unknown individual through the craniofacial measurement. Data analysis has been carried out on the craniofacial and angiographic 3D images of two hundred normal adults that had been taken with the multidetector-row computed tomography at Jeju National University Hospital between July, 2005 and August, 2007. The analysis include; the length measurement category; the cranial index analyzed using the T-test according to sex; discriminant analysis for the distinction of sex; correlation analysis for the stature estimation and multiple regression analysis; x2-test for classifying the shape of the craniofacial of Jeju populations; the group analysis using the data of the people in neighboring countries and Korea. Out of the 30 criteria of the craniofacial metric traits, 28 show measurement differential between male and female Discriminant functions are obtained with the measurement values of bizyomatic breadth and mastoid process length. It shows 90% accuracy in males and 88.0% accuracy in females. The formula obtained from regression analysis using the chin height and cranial base length in males, and the nasal height and maximum height in females shows very high degree of reliability for estimation of stature in the craniofacial 3D CT images. The regression equations calculated are as follows: stature in males = (chin height× 13.148)+(cranial base length× 6.128)+63.608; (standard error of estimate(S.E.E) = 6.3 cm); stature in females = (nasal height× 9.378)+(maximum height× 4.419)+46.553; (S.E.E = 5.6 cm) There is a difference in the size of the craniofacial of Jeju population according to sex and stature, and it could help to identify the unknown individual when a catastrophic disaster occurs and provide us with standards for the comparative material to identify the unidentified individual at the excavation site as we could dig up an old body. These characteristics help us confirm craniofacial morphological characteristics according to the human community by race, nationality, region and sex.