Virtual anthropology: A comparison between the performance of conventional X-ray and MDCT in investigating the trabecular structure of long bones.

Détails

ID Serval
serval:BIB_9EA3F936F2AF
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Virtual anthropology: A comparison between the performance of conventional X-ray and MDCT in investigating the trabecular structure of long bones.
Périodique
Forensic Science International
Auteur(s)
de Froidmont S., Grabherr S., Vaucher P., De Cesare M., Egger C., Papageorgopoulou C., Roth V., Morand G., Mangin P., Uldin T.
ISSN
1872-6283 (Electronic)
ISSN-L
0379-0738
Statut éditorial
Publié
Date de publication
2013
Volume
225
Numéro
1-3
Pages
53-59
Langue
anglais
Notes
Publication types: Journal ArticlePublication Status: ppublish
Résumé
Recently, modern cross-sectional imaging techniques such as multi-detector computed tomography (MDCT) have pioneered post mortem investigations, especially in forensic medicine. Such approaches can also be used to investigate bones non-invasively for anthropological purposes. Long bones are often examined in forensic cases because they are frequently discovered and transferred to medico-legal departments for investigation. To estimate their age, the trabecular structure must be examined. This study aimed to compare the performance of MDCT with conventional X-rays to investigate the trabecular structure of long bones. Fifty-two dry bones (24 humeri and 28 femora) from anthropological collections were first examined by conventional X-ray, and then by MDCT. Trabecular structure was evaluated by seven observers (two experienced and five inexperienced in anthropology) who analyzed images obtained by radiological methods. Analyses contained the measurement of one quantitative parameter (caput diameter of humerus and femur) and staging the trabecular structure of each bone. Preciseness of each technique was indicated by describing areas of trabecular destruction and particularities of the bones, such as pathological changes. Concerning quantitative parameters, the measurements demonstrate comparable results for the MDCT and conventional X-ray techniques. In contrast, the overall inter-observer reliability of the staging was low with MDCT and conventional X-ray. Reliability increased significantly when only the results of the staging performed by the two experienced observers were compared, particularly regarding the MDCT analysis. Our results also indicate that MDCT appears to be better suited to a detailed examination of the trabecular structure. In our opinion, MDCT is an adequate tool with which to examine the trabecular structure of long bones. However, adequate methods should be developed or existing methods should be adapted to MDCT.
Mots-clé
Osteology, Anthropology, Age estimation, Trabecular structure, Multi-detector computed tomography, Radiography,
Pubmed
Web of science
Création de la notice
14/03/2013 19:02
Dernière modification de la notice
03/03/2018 20:00
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