The National Electrical Manufacturers Association (NEMA) has published "NEMA NU 2-2007 Performance Measurements of Positron Emission Tomographs."
The revision includes standards for PET, regardless of the scintillator material, and establishes methods of performance measurement on all currently available PET systems.
NEMA noted that the new standards are more accurate at measuring scatter fraction and random coincidences than previous versions.
The major change addresses an improvement in the inclusion of PET cameras with intrinsically radioactive components. Affected tests include count losses and randoms, as well as sensitivity. The spatial resolution measurement has been expanded to include the measurement and reporting of source position.
By AuntMinnie.com staff writers
July 16, 2007
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