Comparaison des performances de deux systèmes TEP/TDM corps entier selon la norme NEMA NU 2-2001

Translated title of the contribution: Performance comparison of two commercial whole-body PET/CT scanners using NEMA NU 2-2001

Luca Modolo, Grégory Bolard, John O. Prior, Yann Seimbille, Marek Kosinski, Nasser Hejira, Angelika Bischof Delaloye, François Bochud, Francis R. Verdun*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

The goal of work is the characterization of two PET/CT units that are based on different technologies, using the methodology proposed in the NEMA NU 2-2001 standard. The two systems were qualified in the 3D acquisition mode by means of the National Electric Manufacturers Association (NEMA) phantoms. The results obtained showed that the NEMA standard allows to highlight differences in terms of spatial resolution, sensitivity, scatter fraction and counting rate performances between the two systems ; differences that can be explained by the geometry of the units and the materials of the detectors used. Thus, the use of the standard makes it possible to benchmark PET units and establish reference values that can be used to follow the stability of the system over the time. The tests of image quality, obtained under conditions closer to the clinical applications, showed nevertheless that the two units give, in spite of different technologies, images with sufficient contrast, within short acquisition times, allowing the detection of small lesions. This test should be part of the constancy tests to enable the comparison of examinations performed on different units when the quantitative aspects are of importance.

Translated title of the contributionPerformance comparison of two commercial whole-body PET/CT scanners using NEMA NU 2-2001
Original languageFrench
Pages (from-to)372-379
Number of pages8
JournalMedecine Nucleaire
Volume31
Issue number8
DOIs
Publication statusPublished - Aug 2007
Externally publishedYes

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