PET Performance Measurements for an LSO-Based Combined PET/CT Scanner Using the National Electrical Manufacturers Association NU 2-2001 Standard

Journal of Nuclear Medicine

Sadek A. Nehmeh¹  John L. Humm¹  Yusuf E. Erdi¹  Tim Mulnix¹  Charles C. Watson¹ 

关键词: National Electrical Manufacturers Association;    acceptance testing;    PET/CT;   

DOI  :  

学科分类：医学（综合）

来源: Society of Nuclear Medicine

【 摘 要 】

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.

【 授权许可】

Unknown