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Hard x-ray micro-tomography of a human head post-mortem as a gold standard to compare x-ray modalities
Author(s): M. Dalstra; G. Schulz; D. Dagassan-Berndt; C. Verna; M. Müller-Gerbl; B. Müller
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Paper Abstract

An entire human head obtained at autopsy was micro-CT scanned in a nano/micro-CT scanner in a 6-hour long session. Despite the size of the head, it could still be scanned with a pixel size of 70 μm. The aim of this study was to obtain an optimal quality 3D data-set to be used as baseline control in a larger study comparing the image quality of various cone beam CT systems currently used in dentistry. The image quality of the micro-CT scans was indeed better than the ones of the clinical imaging modalities, both with regard to noise and streak artifacts due to metal dental implants. Bony features in the jaws, like the trabecular architecture and the thin wall of the alveolar bone were clearly visible. Therefore, the 3D micro-CT data-set can be used as the gold standard for linear, angular, and volumetric measurements of anatomical features in and around the oral cavity when comparing clinical imaging modalities.

Paper Details

Date Published: 4 October 2016
PDF: 6 pages
Proc. SPIE 9967, Developments in X-Ray Tomography X, 99670P (4 October 2016); doi: 10.1117/12.2237655
Show Author Affiliations
M. Dalstra, Univ. Ctr. for Dental Medicine (Switzerland)
Aarhus Univ. (Denmark)
G. Schulz, Univ. of Basel (Switzerland)
D. Dagassan-Berndt, Univ. Basel (Switzerland)
C. Verna, Univ. Ctr. for Dental Medicine (Switzerland)
M. Müller-Gerbl, Univ. of Basel (Switzerland)
B. Müller, Univ. of Basel (Switzerland)


Published in SPIE Proceedings Vol. 9967:
Developments in X-Ray Tomography X
Stuart R. Stock; Bert Müller; Ge Wang, Editor(s)

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