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Proceedings Paper

Volume CT of anthropomorphic phantoms using a radiation therapy simulator
Author(s): Michael D. Silver; Mitsuru Yahata; Yasuo Saito; E. Anne Sivers; S. R. Huang; Bruce M. Drawert; Thomas C. Judd
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Paper Abstract

We interface a Toshiba LX-40A radiation therapy simulator with a custom designed data acquisition system and a 386-PC. The LX-40A includes a 14 inch (35.6 cm) x-ray image intensifier and a 1 inch saticon camera. Two-dimensional cone beam projections of an anthropomorphic chest/lung phantom are collected. The Feldkamp algorithm reconstructs the volume data set into a volume image of the phantom. We discuss several volume computed tomography issues including spatial distortions in the x-ray image intensifier, scatter, and veiling glare. We compare the volume computed tomography results with two-dimensional CT imaging of the same phantom scanned on the equipment.

Paper Details

Date Published: 1 June 1992
PDF: 15 pages
Proc. SPIE 1651, Medical Imaging VI: Instrumentation, (1 June 1992); doi: 10.1117/12.59398
Show Author Affiliations
Michael D. Silver, Bio-Imaging Research, Inc. (United States)
Mitsuru Yahata, Toshiba Corp. (Japan)
Yasuo Saito, Toshiba Corp. (Japan)
E. Anne Sivers, Bio-Imaging Research, Inc. (United States)
S. R. Huang, Bio-Imaging Research, Inc. (United States)
Bruce M. Drawert, Bio-Imaging Research, Inc. (United States)
Thomas C. Judd, Bio-Imaging Research, Inc. (United States)

Published in SPIE Proceedings Vol. 1651:
Medical Imaging VI: Instrumentation
Rodney Shaw, Editor(s)

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