Titre
Measuring pelvises in 3D surface scans and in MDCT generated virtual environment: Considerations for applications in the forensic context.
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Abegg, C.
Auteure/Auteur
Hoxha, F.
Auteure/Auteur
Campana, L.
Auteure/Auteur
Ekizoglu, O.
Auteure/Auteur
Schranz, S.
Auteure/Auteur
Egger, C.
Auteure/Auteur
Grabherr, S.
Auteure/Auteur
Besse, M.
Auteure/Auteur
Moghaddam, N.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
1872-6283
Statut éditorial
Publié
Date de publication
2023-11
Volume
352
Première page
111813
Peer-reviewed
Oui
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Publication Status: ppublish
Résumé
Virtual Anthropology (VA) transposes the traditional methods of physical anthropology to virtual environments using imaging techniques and exploits imaging technologies to devise new methodological protocols. In this research, we investigate whether the measurements used in the Diagnose Sexuelle Probabiliste (DSP) and Ischio-Pubic Index (IPI) differ significantly when 3D models of a bone are generated using 3D surface scans (3DSS) and Multidetector Computed Tomography (MDCT) scans. Thirty pelvises were selected from the SIMON identified skeletal collection. An equal ratio of females to males was sought, as well as a good preservation of the bones. The pelvises were scanned using an MDCT scanner and a 3D surface scanner. The measurements of the DSP and IPI methods on the dry bones (referred to as macroscopic measurements here), and then to the 3D models. The intra- and interobserver, using the Technical Error of Measurement (TEM) and relative Technical Error of Measurement (rTEM) error was assessed, and we aimed to observe if the measurements made on the MDCT and 3DSS generated models were significantly different from those taken on the dry bones. Additionally, the normality of the data was tested (Shapiro-Wilk test) and the differences in measurements was evaluated using parametric (Student t-tests) and non-parametric (Wilcoxon) tests. The TEM and rTEM calculations show high intra and interobserver consistency in general. However, some measurements present insufficient inter- and intraobserver agreement. Student t and Wilcoxon tests indicate potentially significant differences of some measurements between the different environments. The results show that especially in the virtual environment, it is not easy to find the right angle for some of the DSP measurements, However, when comparing the measurement differences between dry and virtual bones, the results show that most of the differences are less than or equal to 2.5 mm. Considering the IPI, the landmarks are already difficult to determine on the dry bone, but they are even more difficult to locate in the virtual environment. Nevertheless, this study shows that quantitative methods may be better suited for application in the virtual environment, but further research using different methods is needed.
PID Serval
serval:BIB_39D490FF30BA
PMID
Open Access
Oui
Date de création
2023-09-25T09:17:00.139Z
Date de création dans IRIS
2025-05-20T13:36:27Z
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Nom
37742459.pdf
Version du manuscrit
published
Licence
https://creativecommons.org/licenses/by/4.0
Taille
2.14 MB
Format
Adobe PDF
PID Serval
serval:BIB_39D490FF30BA.P001
URN
urn:nbn:ch:serval-BIB_39D490FF30BA2
Somme de contrôle
(MD5):bd5886b1e0c454885aa3f6df941a2f92