Individual synthetic head models in wound ballistics - A feasibility study based on real cases.

Détails

ID Serval
serval:BIB_50850A1069DC
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Individual synthetic head models in wound ballistics - A feasibility study based on real cases.
Périodique
Forensic science international
Auteur⸱e⸱s
Riva F., Lombardo P., Zech W.D., Jackowski C., Schyma C.
ISSN
1872-6283 (Electronic)
ISSN-L
0379-0738
Statut éditorial
Publié
Date de publication
01/2019
Peer-reviewed
Oui
Volume
294
Pages
150-159
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Résumé
Synthetic models, also called "surrogates", are commonly used in wound ballistics in order to simulate human tissues. Despite several surrogates are worldwide accepted and used; some of them have not been yet fully validated and their limits for forensic reconstructions have not been deeply investigated yet. In this work we present a homicide/suicide case involving three gunshots to the head with bullets retained in the skull or beneath the scalp. Reconstruction of these cases was performed preparing three individual synthetic head models based on post-mortem computed tomography (PMCT) measurements. Ballistic soap, polyurethane plates and 10% ballistic gelatine at 4°C were used as simulants in individually adapted thickness. Ballistic tests were performed using the questioned firearm and ammunition type. The damages on the synthetic models have been compared to the findings in PMCT and autopsy of the victims. Although the results highlighted general similarities in terms of injury characteristics, some of the experimental shots overpenetrated. Furthermore, the bullets recovered in the synthetic models did not show the same quality of deformations as the questioned bullets. This lack of bullet deformation in the synthetic models might be mainly attributed to the physical difference between real bones and polyurethane surrogate.
Mots-clé
Feasibility Studies, Forensic Ballistics/methods, Gelatin, Head Injuries, Penetrating/diagnostic imaging, Humans, Imaging, Three-Dimensional, Models, Biological, Polyurethanes, Tomography, X-Ray Computed, Wounds, Gunshot/diagnostic imaging, Bullet deformation, Firearms, Forensic sciences, Head injuries, Synthetic models, Wound ballistics
Pubmed
Web of science
Création de la notice
29/06/2020 8:18
Dernière modification de la notice
20/01/2021 6:26
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