Thesis (Ph.D.) - Cairo University - Faculty of Medicine - Department of Forensic Medicine -Toxicology

Background:Determination of individuality is one of the prime concerns in forensic investigation; accurate sex estimation is crucial for determining the identity of unknown individuals. Vertebrae are among the least studied bones for sex identification; however, its presence at a death scene is the most common of all. Age determination has become increasingly important in forensic science for both living and remains.Identification depending on radiological techniquesis a proper method in forensic science field Methodology:This study was conducted on 122 Egyptian subjects who have done computed tomography of neck to take measurements of C2, C7 and T1, and on 123 Egyptian subjects who have done computed tomography of abdomen to take measurements of T12 and L1. Results:Males were statistically significant larger than females in the most of measurements, also sex was identified from the most significant measurements at accuracy rates ranged from 84.4% to 89.3%. In addition, there was significant positive correlation between age and most ofthe vertebral measurements and linear regression models were constructed to estimate age from these vertebrae. Conclusion: MSCT of vertebrae is a useful tool for sex and age identification of unknown; however, further studies are neededfor proper evaluation of its role on age estimation

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