Sex determination from os sacrum by postmortem CT

作者：Zech Wolf Dieter^*; Hatch Gary; Siegenthaler Lea; Thali Michael J; Loesch Sandra

来源：Forensic Science International, 2012, 221(1-3): 39-43.

DOI：10.1016/j.forsciint.2012.03.022

• Forensic anthropology
• Population data
• Sex determination
• Os sacrum
• Sacral base
• Postmortem computed tomography
• Discriminant function analysis

Sex determination in forensic practice is performed mostly on sexually dimorphic bones, including pelvic bones such as the os sacrum. Postmortem CT scan provides an easy and fast method for depicting and measuring bone structures prior to elaborate autopsy preparations. To develop a simple and objective method for sex determination in postmortem CT, metric data were evaluated from CT images of the pelvic-associated os sacrum of 95 corpses (49 men and 46 women) from the Canton of Bern, Switzerland. Discriminant function analysis of the data showed that the best accuracy in determining sex was 76.8% and 78.9% with two different observers. It is concluded that measuring the os sacrumin postmortem CT for sex determination has moderate accuracy and should only be applied in combination with other methods.

• 出版日期2012-9-10