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Proceedings Paper

Contrast-to-noise and exposure measurements of an aSi:H/Csl(Tl) flat-panel based digital radiography system using a QC chest phantom
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Paper Abstract

The amorphous silicon (a-Si:H) flat panel imaging systems have recently become commercially available and gained acceptance as promising candidates for implementing digital radiography. In this work, SNRs, CNRs and figure-of-merit, defined as CNR2/SEEs, were measured for a commercial a-Si:H/CsI(Tl) flat-panel digital chest radiography system as a function of the kVp for three different regions in the images of a chest phantom: lung, heart and subphrenic. Using these measurements, issues of image quality and optimal selection of the kVp are discussed.

Paper Details

Date Published: 5 June 2003
PDF: 7 pages
Proc. SPIE 5030, Medical Imaging 2003: Physics of Medical Imaging, (5 June 2003); doi: 10.1117/12.480473
Show Author Affiliations
Xinming Liu, M.D. Anderson Cancer Ctr./Univ. of Texas (United States)
Chris C. Shaw, M.D. Anderson Cancer Ctr./Univ. of Texas (United States)
Peter Balter, M.D. Anderson Cancer Ctr./Univ. of Texas (United States)
S. Cheenu Kappadath, M.D. Anderson Cancer Ctr./Univ. of Texas (United States)
Chao-Jen Lai, M.D. Anderson Cancer Ctr./Univ. of Texas (United States)


Published in SPIE Proceedings Vol. 5030:
Medical Imaging 2003: Physics of Medical Imaging
Martin J. Yaffe; Larry E. Antonuk, Editor(s)

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