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- W2529329729 abstract "Performance measurements were conducted on a prototype PET/CT system under development by GE Healthcare. Performance measurements of spatial resolution, sensitivity, image quality, scatter fraction and count rate were obtained using NEMA NU2-2012 methodology. Timing and energy resolution were also measured. The radial and tangential transaxial and axial resolutions measured from FBP reconstructed images were 4.5, 4.3 mm and 5.2 mm FWHM at 1 cm from gantry center respectively. The system sensitivity was measured as 22.0 cps/kBq at the gantry center. The peak noise equivalent count rate was 283.4 kcps at 19.7 kBq/ml and the scatter fraction was 38.8%. The contrast of the 37, 22, and 10 mm spheres in the IQ phantom for TOF (and non-TOF) were 87.5 (82.8), 68.4 (67.2), and 34.6% (31.1%) respectively. The background variability of the same spheres for TOF (and non-TOF) were 3.6 (4.3), 4.6 (5.6) and 7.1% (8.7%) respectively. The lung error was 6% for TOF and 10% for non-TOF. A timing resolution of < 380ps and energy resolution of < 9.2% were measured. The prototype PET/CT system combines high sensitivity and high count rate capability with TOF capability." @default.
- W2529329729 created "2016-10-14" @default.
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- W2529329729 date "2015-10-01" @default.
- W2529329729 modified "2023-09-23" @default.
- W2529329729 title "Performance measurements of a PET/CT system with prototype SiPM detectors" @default.
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- W2529329729 doi "https://doi.org/10.1109/nssmic.2015.7582091" @default.
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