PET performance measurements for an LSO-based combined PET/CT scanner using the national electrical manufacturers association NU 2-2001 standard Journal Article
| Authors: | Erdi, Y. E.; Nehmeh, S. A.; Mulnix, T.; Humm, J. L.; Watson, C. C. |
| Article Title: | PET performance measurements for an LSO-based combined PET/CT scanner using the national electrical manufacturers association NU 2-2001 standard |
| Abstract: | 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. |
| Keywords: | positron emission tomography; diagnostic accuracy; sensitivity analysis; computer assisted tomography; tomography, x-ray computed; imaging system; standard; instrumentation; image quality; computer assisted emission tomography; scintiscanning; gamma cameras; phantoms, imaging; radionuclide imaging; pet/ct; tomography, emission-computed; performance measurement system; lutetium; scintillation camera; tomography scanners, x-ray computed; general apparatus, equipment and supplies; acceptance testing; humans; human; priority journal; article; national electrical manufacturers association; lso crystal; silicate; silicates |
| Journal Title: | Journal of Nuclear Medicine |
| Volume: | 45 |
| Issue: | 5 |
| ISSN: | 0161-5505 |
| Publisher: | Society of Nuclear Medicine |
| Date Published: | 2004-05-01 |
| Start Page: | 813 |
| End Page: | 821 |
| Language: | English |
| PROVIDER: | scopus |
| PUBMED: | 15136631 |
| DOI/URL: | |
| Notes: | J. Nucl. Med. -- Cited By (since 1996):64 -- Export Date: 16 June 2014 -- CODEN: JNMEA C2 - 15136631 -- Source: Scopus |
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