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KMID : 1151820070010010031
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Journal of the Korean Society of Radiology
2007 Volume.1 No. 1 p.31 ~ p.37
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Quantitative Analysis and Comparison of DR and CR image quality
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Park Hye-Suk
Seo Jang-Yeon
Jeong Jin-Hwa
Lee Chang-Lae
Cho Hyo-Min
Kim Hee-Joung
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Abstract
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The purpose of this research was to compare and analyze image quality for each Detector of CR(Computed Radiography) and DR(Digital Radiography). The results showed that CR(AGFA MD 4.0 General plate, JAPAN) was superior to DR(HOLOGIC nDirect Ray, USA) based on the quantitative values and comparison of MTF(Modulation Transfer Function), NPS(Noise Power Spectrum), Photon fluence and DQE(Detective Quantum Efficiency) which have been widely accepted for the estimation of CR and DR. Quantitative evaluations of CR and DR system were obtained and they may be very helpful for QA and QC of general X-ray systems.
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KEYWORD
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CR, DR, MTF, NPS, Photon fluence, DQE
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