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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Guyomarc'h, Pierre Santos, Frédéric Dutailly, Bruno Desbarats, Pascal Bou, Christophe Coqueugniot, Hélène |
| Description | Country affiliation: France Author Affiliation: Guyomarc'h P ( Université Bordeaux 1, UMR 5199 PACEA, Anthropologie des Populations Passées et Présentes, Talence, France. pierreguyo@gmail.com) |
| Abstract | Digital investigation of anthropological material through computed tomography (CT) offers several new opportunities in morphometrics. However, an object measured with computer-assisted methods does not necessarily exactly match the original one. The scanning and surface reconstruction of the object induce some alterations, and data acquisition is prone to measurement uncertainty. The purpose of this research is to evaluate the intra- and inter-observers variations in medical CT scan measurements of a known-size phantom and two dry crania. Two software packages, AMIRA and Treatment and Increased Vision for Medical Imaging (TIVMI), which use different techniques of surface reconstructions, were compared. The mean difference between the measurements was lower for TIVMI, using an objective algorithm based on the half-maximum height (HMH) protocol in three dimensions (3D). AMIRA can induce up to a 4% error in known measurements and 5% uncertainty in dry skull measurements. This study emphasises the risk of object shape alteration in each step of its digitisation. |
| File Format | HTM / HTML |
| ISSN | 03790738 |
| Issue Number | 1-3 |
| Volume Number | 219 |
| e-ISSN | 18726283 |
| Journal | Forensic Science International |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2012-06-10 |
| Publisher Place | Ireland |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Forensic Science Uncertainty Comparative Study Humans Tomography, X-ray Computed Forensic Anthropology Cephalometry Journal Article Imaging, Three-dimensional Skull Software Methods Observer Variation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Law Pathology and Forensic Medicine |
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