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Proceedings Paper

An observer-based study of an x-ray imaging system for small animal research
Author(s): Eric Potter; Fabrice Ouandji; Yuhua Li; Pascal Laignier; Preeti Kshirsagar; Wei R. Chen; Hong Liu
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Paper Abstract

In this study, an x-ray imaging system for small-animal studies was characterized. This system includes an x-ray source with a 20-mm focal spot and a fiber optics coupled CCD detector module. It can be operated in magnification levels ranging from X1.5 to X5, by varying the object-to-detector distance. The system was subjectively characterized using a contrast-detail x-ray phantom. X-ray images of the phantom were obtained and reviewed by observers. The threshold contrast values for different object sizes were determined from observer measurements. The contrast-detail curves showed that magnification reduces the contrast threshold required for object detection. This system is suitable for small animal studies at different magnification levels, with high spatial resolution and adequate contrast-detail detectability.

Paper Details

Date Published: 1 April 2005
PDF: 7 pages
Proc. SPIE 5692, Advanced Biomedical and Clinical Diagnostic Systems III, (1 April 2005); doi: 10.1117/12.593657
Show Author Affiliations
Eric Potter, Univ. of Oklahoma (United States)
Fabrice Ouandji, Univ. of Oklahoma (United States)
Yuhua Li, Univ. of Oklahoma (United States)
Pascal Laignier, Univ. of Oklahoma (United States)
Preeti Kshirsagar, Univ. of Oklahoma (United States)
Wei R. Chen, Univ. of Central Oklahoma (United States)
Hong Liu, Univ. of Oklahoma (United States)

Published in SPIE Proceedings Vol. 5692:
Advanced Biomedical and Clinical Diagnostic Systems III
Tuan Vo-Dinh; Warren S. Grundfest M.D.; David A. Benaron M.D.; Gerald E. Cohn, Editor(s)

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