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Proceedings Paper

High-resolution dynamic CT scanner based on a variable-zoom XRII and a linear photodiode array
Author(s): Maria Drangova; David W. Holdsworth; Aaron Fenster
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Paper Abstract

We have developed a CT scanner with high temporal and spatial resolution which can be used to acquire dynamic images of objects undergoing periodic motion. Our system comprises of an x-ray image intensifier (XRII) optically coupled to a linear photo-diode array (PDA) camera. The XRII has been modified to vary electronically the magnification of the image continuously over fields-of-view (FOV) ranging between 8 and 24 cm, and thus increasing the resolution from 1.4 mm-1 to 3.8 mm-1. In this way, we can select a magnification which maximizes the image resolution for a given object.

Paper Details

Date Published: 14 September 1993
PDF: 5 pages
Proc. SPIE 1896, Medical Imaging 1993: Physics of Medical Imaging, (14 September 1993); doi: 10.1117/12.154584
Show Author Affiliations
Maria Drangova, John P. Robarts Research Institute/Univ. of Western Ontario (Canada)
David W. Holdsworth, John P. Robarts Research Institute/Univ. of Western Ontario (Canada)
Aaron Fenster, John P. Robarts Research Institute/Univ. of Western Ontario (Canada)


Published in SPIE Proceedings Vol. 1896:
Medical Imaging 1993: Physics of Medical Imaging
Rodney Shaw, Editor(s)

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