Morphometric analysis of sex differences in contemporary Japanese pelves using multidetector computed tomography
Morphometric analysis of sex differences in contemporary Japanese pelves using multidetector computed tomography
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DOI：
10.1016/j.forsciint.2015.10.018
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发表时间：
2015-12-01
影响因子：
2.2
通讯作者：
Iwase, Hirotaro
中科院分区：
文献类型：
--
作者：
Torimitsu, Suguru;Makino, Yohsuke;Iwase, Hirotaro
在法医背景下，对腐烂或骨骼遗骸的性别判断显然很重要。最近，使用多探测器计算机断层扫描(MDCT)获得了当代特定人群的数据。这项研究的主要目的是调查当代日本法医样本中的骨盆二型性，并利用从三维(3D)CT图像获得的各种骨盆测量来量化性别判断的准确性。本研究共使用了208具身体(男104具，女104具)，在2011年12月至2014年8月期间进行了尸检和尸检。从只提取骨骼数据的3D CT重建图像中获得每个骨盆的11个测量值。使用描述性统计和判别函数分析对测量结果进行分析。在性别差异方面，除了一项测量外，所有的测量都是二态的。使用这些测量值进行单变量判别函数分析，性别分类准确率为62.0-98.1%。耻骨下角被发现对准确的性别估计有最显著的贡献。多元判别函数的性别预测准确率为63.9%~98.1%。总之，从当代日本人群的3D CT图像获得的骨盆测量成功地显示了性别二型性，并可能有助于法医人类学领域中骨骼性别的估计。(C)2015爱思唯尔爱尔兰有限公司。保留所有权利。
Sex estimation of decomposed or skeletal remains is clearly important in forensic contexts. Recently, contemporary population-specific data has been obtained using multidetector computed tomography (MDCT) scanning. The main purpose of this study was to investigate skeletal pelvic dimorphism in a contemporary Japanese forensic sample and to quantify the accuracy of sex estimation using various pelvic measurements obtained from three-dimensional (3D) CT images. This study used a total of 208 cadavers (104 males, 104 females) of which postmortem CT scanning and subsequent forensic autopsy were conducted between December 2011 and August 2014. Eleven measurements of each pelvis were obtained from 3D CT reconstructed images that extracted only bone data. The measurements were analyzed using descriptive statistics and discriminant function analyses. All except one measurement were dimorphic in terms of sex differences. Univariate discriminant function analyses using these measurements provided sex classification accuracy rates of 62.0-98.1%. The subpubic angle was found to contribute most significantly to accurate sex estimation. Multivariate discriminant functions yielded sex prediction accuracy rates of 63.9-98.1%. In conclusion, the pelvic measurements obtained from 3D CT images of a contemporary Japanese population successfully demonstrated sexual dimorphism and may be useful for the estimation of skeletal sex in the field of forensic anthropology. (C) 2015 Elsevier Ireland Ltd. All rights reserved.