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Proceedings Paper

A new iodinated liver phantom for the quantitative evaluation of advanced CT acquisition and reconstruction techniques
Author(s): Baiyu Chen; Daniele Marin; Ehsan Samei
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Paper Abstract

An iodinated liver phantom is needed for liver CT related studies, such as the quantification of lesion contrast. Prior studies simulated iodinated hepatic lesions with tubes of iodine solution, which involved complications associated with the setup, differences from actual lesion morphology, and susceptibility to iodine sediments. To develop a dedicated liver phantom with anthropomorphic structures and solid lesions, we designed a phantom with iodinated liver inserts and lesions of different sizes and contrasts. The concentration of iodine in liver parenchyma was determined according to the HU measured from clinical images. The concentrations in high and low contrast lesions were selected so as to provide challenging but reasonable detection tasks. The application of the liver phantom was initially validated at different doses and reconstruction settings.

Paper Details

Date Published: 16 March 2011
PDF: 8 pages
Proc. SPIE 7961, Medical Imaging 2011: Physics of Medical Imaging, 796161 (16 March 2011); doi: 10.1117/12.878916
Show Author Affiliations
Baiyu Chen, Duke Univ. (United States)
Daniele Marin, Duke Univ. (United States)
Ehsan Samei, Duke Univ. (United States)

Published in SPIE Proceedings Vol. 7961:
Medical Imaging 2011: Physics of Medical Imaging
Norbert J. Pelc; Ehsan Samei; Robert M. Nishikawa, Editor(s)

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