Tara Chapman, Philippe Lefevre, Stéphane Louryan, Marcel Rooze, and Serge Van Sint Jan (2013)
La détermination du sexe grâce à la méthode probabalistic diagnosis dans un environnement virtuel
Bull. Mém. Soc. Anthropol. Paris, 25:S12-S13.
The hip bone is one of the most reliable indicators of sex
in the human body due to the fact it is the most dimorphic
bone. Probabilistic Sex Diagnosis (developed by Murailet al., 2005)
is a method based on a worldwide hip bone
metrical database and relies on the actual physical bone for
analysis. Sex is determined by comparing specific measurements
taken from each specimen using sliding calipers and
computing the probability of the specimens being female or
male. In forensic science it is sometimes not possible to sex
a body due to corpse decay or injury. Skeletinization and
dissection of a body is a laborious process and desecrates
the body. The current study aimed to see if it was possible to
virtually utilise the DSP method to avoid this process.
Forty-nine innominate bones of unknown sex were
obtained from ULB. Bones were analysed by two researchers
using the manual DSP method and a good correlation
was found between researchers. CT scans of available bones
were analysed to obtain three-dimensional (3D) virtual
models using a commercially available software (Amira,
www.amiravis.com). Available models were imported into
a customized software programme called lhpFusionBox
(developed at ULB from the MAF open-source library).
lhpFusionBox is an advanced musculo-skeletal software
which includes many operations relevant to Biomechanics.
It also enables distances to be measured via virtually-
palpated bony landmarks. DSP measurements were then
obtained from the located bony landmarks. There was 100%
accuracy between the manual and virtual DSP analysis. To
further test the method 30 virtual bones of known sex were
analysed (researchers had no prior knowledge of sex before
analysis). There was found to be a 97% accuracy rate with
only one bone leading to a wrong determination. These
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