A Test of the DSP Sexing Method on CT Images from a Modern French Sample

J Forensic Sci. 2015 Sep;60(5):1295-9. doi: 10.1111/1556-4029.12817. Epub 2015 Aug 10.

Abstract

The hip bone is considered to be one of the most reliable indicators in sex determination. The aim of this study was to test the reliability of the DSP method for the hip bone proposed by Murail et al. (Bull Mem Soc Anthropol Paris, 17, 2005, 167) on a sample from a present-day population in France (52 males and 54 females). Ten linear measurements were collected from three-dimensional models derived from computed tomography images (CTI). To quantify the proportions of correct sex determinations, a more rigorous posterior probability threshold of 0.95 was applied. Using all 10 measurements, 92.3% of males and 97.2% of females were sexed correctly. The percentage of undetermined specimens varied depending on the used combination of measurements; however, all sexes were assigned with a 100% accuracy. This study proves that DSP is an appropriate and reliable tool for sex determination, based on dimensions obtained from CTI.

Keywords: computed tomography; forensic anthropology; forensic science; os coxae; reliability; sex determination; virtual morphometric.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Discriminant Analysis*
  • Female
  • Forensic Anthropology
  • France
  • Humans
  • Imaging, Three-Dimensional
  • Male
  • Middle Aged
  • Pelvic Bones / anatomy & histology
  • Pelvic Bones / diagnostic imaging*
  • Sex Determination by Skeleton / methods*
  • Tomography, X-Ray Computed
  • Young Adult