3.5. The feasibility of measuring body weight on CT images and the first steps in anatomical mirroring

Autor: B. De Dobbelaer, W. Van de Voorde, Walter Coudyzer, E. Geusens, Peter Claes, Wim Develter, Joke Wuestenbergs, Dirk Vandermeulen, Philip Joris, Els Jenar
Rok vydání: 2014
Předmět:
Zdroj: Journal of Forensic Radiology and Imaging. 2:105
ISSN: 2212-4780
DOI: 10.1016/j.jofri.2014.02.032
Popis: Objective To estimate body weight using the data of a post mortem total body CT scan and establish its efficacy in a forensic context. Material and method PMCT data were used to compute fat, soft tissue and bone volume using in house developed software based on density and HU. The digitally calculated body weight was then compared with the measured body weight on autopsy. Results Analysis of the obtained results showed a good correlation between the measured body weight and the CT-derived body weight. The highest discrepancies were noticed in children and decomposed bodies presumably due to different bone mineralization in children versus adults and putrefactive gas formation and liquefaction in decomposed bodies. In general, there was no distinct consistent over- or underestimation. In case of partial scans, where a body part was not scanned or was missing, mirroring the unaffected side was seen to give equally good results. Conclusion The weight of a body can be sufficiently estimated using volume measurements of different body tissues obtained from the PMCT data. This technique can be applied when concern is raised about the documented body weight, or if weighing was omitted all together. Furthermore the aforementioned body weight estimates can be useful in case of mass casualties, for victim identification purposes, or in case of traumatic deaths (e.g. dismemberments).
Databáze: OpenAIRE