Estimation of Sex from Patella Measurements in Sichuan Han Population Based on CT-Three-Dimensional Volume Reconstruction Technique.
10.12116/j.issn.1004-5619.2020.05.006
- Author:
Meng Jun ZHAN
1
;
Ming LI
2
;
Chun Lin LI
1
;
Kui ZHANG
1
;
Shi Rong DING
3
;
Zhen Hua DENG
1
Author Information
1. West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China.
2. Public Security Bureau of Huangnan Tibetan Autonomous Prefecture, Huangnan 811399, Qinghai Province, China.
3. Department of Radiology, People's Hospital of Aba Tibetan and Qiang Autonomous Prefecture, Aba 624000, Sichuan Province, China.
- Publication Type:Journal Article
- Keywords:
forensic anthropology;
forensic imaging;
patella;
sex estimation;
computed tomography;
three-dimensional volume reconstruction;
Sichuan;
Han nationality
- MeSH:
Discriminant Analysis;
Female;
Forensic Anthropology;
Humans;
Imaging, Three-Dimensional;
Male;
Patella/diagnostic imaging*;
Sex Determination by Skeleton;
Tomography, X-Ray Computed
- From:
Journal of Forensic Medicine
2020;36(5):636-641
- CountryChina
- Language:Chinese
-
Abstract:
Objective To estimate sex based on patella measurements of Sichuan Han population by computed tomography three-dimensional volume reconstruction technique, and to explore the application value of patella in sex estimation. Methods CT three-dimensional volume reconstruction images of patella of 250 individuals were collected, the four measurement indicators including patellar length, patellar width, patellar thickness, and patellar volume were measured. The t-test was used to determine measurement indicators with sex differences. Fisher discriminant analysis was used to establish the sex discriminant function and the prediction accuracy was calculated by leave-one-out cross validation. Results The sex differences of the four measurement indicators had a statistical significance （P<0.05）. The accuracy rate of the univariate discriminant function established by the patellar length was the highest （82.0%）. The accuracy rates of the all indicators discriminant function and the stepwise discriminant function were 80.4% and 81.6%, respectively. Conclusion It is feasible and accurate to estimate sex of Sichuan Han population by patella measurements with CT three-dimensional volume reconstruction technique. The method may be used as an alternative for sex estimation of Sichuan Han population when other bones with higher accuracy are not available.
