Sexual determination based on multidetector computed tomographic measurements of the second cervical vertebra in a contemporary Japanese population

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• 作者：Suguru Torimitsu^a ; ^b ; ^{torimitsu-tky@umin.ac.jp" class="auth_mail" title="E-mail the corresponding author} ; ^{number60188@chiba-u.jp" class="auth_mail" title="E-mail the corresponding author} ; Yohsuke Makino^a ; ^b ; ^{ymakino-tky@umin.ac.jp" class="auth_mail" title="E-mail the corresponding author} ; Hisako Saitoh^b ; ^{hms1466@faculty.chiba-u.jp" class="auth_mail" title="E-mail the corresponding author} ; Ayaka Sakuma^b ; ^{a.sakuma@chiba-u.jp" class="auth_mail" title="E-mail the corresponding author} ; Namiko Ishii^b ; ^{acua2807@chiba-u.jp" class="auth_mail" title="E-mail the corresponding author} ; Daisuke Yajima^b ; ^{yajima.d@faculty.chiba-u.jp" class="auth_mail" title="E-mail the corresponding author} ; Go Inokuchi^b ; ^{goinokuchi@chiba-u.jp" class="auth_mail" title="E-mail the corresponding author} ; Ayumi Motomura^b ; ^{aama0171@chiba-u.jp" class="auth_mail" title="E-mail the corresponding author} ; Fumiko Chiba^a ; ^b ; ^{chibafumico@chiba-u.jp" class="auth_mail" title="E-mail the corresponding author} ; Rutsuko Yamaguchi^a ; ^{rymgch@yahoo.co.jp" class="auth_mail" title="E-mail the corresponding author} ; Mari Hashimoto^a ; ^{kane.a.nite.01@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Yumi Hoshioka^b ; ^{yhoshioka@chiba-u.jp" class="auth_mail" title="E-mail the corresponding author} ; Hirotaro Iwase^a ; ^b ; ^{iwase@faculty.chiba-u.jp" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Forensic anthropology population data ; Multidetector computed tomography ; Axis ; Japanese ; Sexual dimorphism ; Discriminant analysis
• 刊名：Forensic Science International
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：266
• 期：Complete
• 页码：588.e1-588.e6
• 全文大小：586 K

文摘

Accurate sex estimation is important in forensic investigation to determine the identity of unknown individuals. The aim of this study was to investigate the accuracy of sex assessment based on measurements of the second cervical vertebra (C2) using computed tomographic (CT) images in a Japanese population and to develop discriminant function formulae. The data were collected from 224 Japanese cadavers (112 male subjects, 112 female subjects) on which postmortem CT scanning and subsequent forensic autopsy were performed. Nine CT measurements of the C2 were performed for CT images of each subject. The measurements were assessed using descriptive statistics and discriminant function analyses (DFA). All of the measurements demonstrated significant sexual dimorphism. Multiple DFA with stepwise variable selection resulted in multivariable models; a five-variable model reached an accuracy rate of 92.9%. Our results suggest that metric analysis based on CT images of the C2 can accurately determine the sex from the human skeletal remains in a contemporary Japanese population and may be useful for sex estimation in forensic anthropology.