NDLI: Analyses of sexual dimorphism of reconstructed pelvic computed tomography images of contemporary Japanese using curvature of the greater sciatic notch, pubic arch and greater pelvis.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Biwasaka, Hitoshi Aoki, Yasuhiro Sato, Kei Tanijiri, Toyohisa Fujita, Sachiko Dewa, Koji Yoshioka, Kunihiro Tomabechi, Makiko
Spatial Coverage	Japan
Description	Country affiliation: Japan Author Affiliation: Biwasaka H ( Forensic Science Laboratory, Iwate Prefectural Police Headquarters, Morioka, Japan.)
Abstract	Three-dimensional pelvic images were reconstructed from multi-slice CT data of contemporary Japanese (males: 124; females: 104, 25-92 years old), and curvature analysis to examine sexual dimorphism was carried out in the great sciatic notch (GSN), the pubic arch and the greater pelvis in the images. Reconstructed pelvic CT images were visualized fairly well and anatomical landmarks were easily recognizable. When calculating the radii (curvature radii) of the best-fit circles for the spline curve lines set along the edges of the GSNs and of the pubic arches, sexes from these regions were correctly identified in 89.1% (males: 93.8%; females: 83.7%) and 94.7% (males: 97.3%; females: 91.8%) of cases, respectively, by setting an appropriate cut-off value. Furthermore, sexing was possible even in deeper regions of the GSN which are relatively resistant to postmortem damage. Curvature radii of the best-fit spheres of greater pelves showed no significant difference between sexes. However, curvature of the best-fit sphere for the left iliac fossa was significantly larger than that of the right one (p<10(-24)) in males, and the ratios were >1.0 in 88% of all male specimens analyzed. Meanwhile, no significant difference was observed among female samples. Although some left-sided dominancy has been reported in 2-dimensional measurements of the human pelvis, this 3-dimensional laterality in males was much more significant, and is a potential index of sex difference.
File Format	HTM / HTML
ISSN	03790738
Issue Number	1-3
Volume Number	219
e-ISSN	18726283
Journal	Forensic Science International
Language	English
Publisher	Elsevier
Publisher Date	2012-06-10
Publisher Place	Ireland
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Sex Determination By Skeleton Discipline Forensic Science Multidetector Computed Tomography Anatomy & Histology Humans Japan Middle Aged Forensic Anthropology Male Aged, 80 And Over Journal Article Pelvic Bones Asian Continental Ancestry Group Imaging, Three-dimensional Adult Female Aged Methods
Content Type	Text
Resource Type	Article
Subject	Law Pathology and Forensic Medicine

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