UNLABELLED: Results of performance measurements for a lutetium oxyorthosilicate (LSO)-based PET/CT scanner using new National Electrical Manufacturers Association (NEMA) NU 2-2001 standards are reported. METHODS: Performance measurements following the NU 2-2001 standards were performed on an LSO-based PET/CT scanner. In addition, issues associated with the application of the NEMA standard to LSO-based tomographs in the presence of intrinsic radiation are discussed. RESULTS: We report on some difficulties experienced in following the suggested NEMA measurement techniques and describe alternative approaches. Measurements with the new standard (as compared with NU-1994) incorporate the effects of activity outside the scanner and facilitate measurements of the entire axial field of view. Realistic clinical conditions are also simulated in image quality measurements of a torso phantom. CONCLUSION: We find that, with appropriate modifications, NU 2-2001 can be successfully applied to LSO-based scanners.
UNLABELLED: Results of performance measurements for a lutetium oxyorthosilicate (LSO)-based PET/CT scanner using new National Electrical Manufacturers Association (NEMA) NU 2-2001 standards are reported. METHODS: Performance measurements following the NU 2-2001 standards were performed on an LSO-based PET/CT scanner. In addition, issues associated with the application of the NEMA standard to LSO-based tomographs in the presence of intrinsic radiation are discussed. RESULTS: We report on some difficulties experienced in following the suggested NEMA measurement techniques and describe alternative approaches. Measurements with the new standard (as compared with NU-1994) incorporate the effects of activity outside the scanner and facilitate measurements of the entire axial field of view. Realistic clinical conditions are also simulated in image quality measurements of a torso phantom. CONCLUSION: We find that, with appropriate modifications, NU 2-2001 can be successfully applied to LSO-based scanners.
Authors: Katia Parodi; Harald Paganetti; Ethan Cascio; Jacob B Flanz; Ali A Bonab; Nathaniel M Alpert; Kevin Lohmann; Thomas Bortfeld Journal: Med Phys Date: 2007-02 Impact factor: 4.071
Authors: Youngho Seo; Boon-Keng Teo; Mohiuddin Hadi; Carole Schreck; Stephen L Bacharach; Bruce H Hasegawa Journal: Med Phys Date: 2008-07 Impact factor: 4.071
Authors: Shamurailatpam Dayananda Sharma; R Prasad; Bina Shetye; V Rangarajan; D Deshpande; S K Shrivastava; K A Dinshaw Journal: J Med Phys Date: 2007-10