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- W201036327 abstract "Aim of this work is to quantitatively compare the performances of four CT devices as regards both radiation dose and image quality. The considered scanners are: GE Light Speed VCT, Philips Brilliance 64, Siemens Somatom Sensation 64 and Toshiba Aquilion 64. Abdomen acquisition protocols have been compared. Effective dose and doses to main organs have been evaluated with TLDs placed in an Alderson Rando® phantom. Measured doses have been compared to doses calculated with ImPACT CT Patient Dosimetry Calculator (version 0.99x). The Contrast to Noise Ratio (CNR) has been measured in a Catphan®600 phantom. The Figure of Merit (FoM) defined as the ratio of squared CNR to effective dose has been evaluated. Measured effective doses are substantially comparable for the four CT devices; measured effective dose and organ doses are slightly higher than the calculated ones. CNR values reflect effective dose differences. The proposed FoM is adequate for a quantitative and simple CT performance evaluation." @default.
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- W201036327 date "2009-01-01" @default.
- W201036327 modified "2023-09-23" @default.
- W201036327 title "Dosimetric and Image Quality Comparison of Different 64-Slice CT Scanners" @default.
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- W201036327 doi "https://doi.org/10.1007/978-3-642-03879-2_56" @default.
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