| Title | PET performance measurements for an LSO-based combined PET/CT scanner using the National Electrical Manufacturers Association NU 2-2001 standard. |
| Publication Type | Journal Article |
| Year of Publication | 2004 |
| Authors | Erdi YE, Nehmeh SA, Mulnix T, Humm JL, Watson CC |
| Journal | J Nucl Med |
| Volume | 45 |
| Issue | 5 |
| Pagination | 813-21 |
| Date Published | 2004 May |
| ISSN | 0161-5505 |
| Keywords | Gamma Cameras, Humans, Lutetium, Phantoms, Imaging, Radionuclide Imaging, Silicates, Tomography Scanners, X-Ray Computed, Tomography, Emission-Computed, Tomography, X-Ray Computed |
| Abstract | 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. |
| Alternate Journal | J Nucl Med |
| PubMed ID | 15136631 |