This part of IEC 61 675 specifies terminology and test methods for declaring the characteristics of POSITRON EMISSION TOMOGRAPHS . P OSITRON EMISSION TOMOGRAPHS detect the ANNIHILATION RADIATION of positron emitting RADIONUCLIDE s by COINCIDENCE DETECTION .
No test has been specified to characterize the uniformity of reconstructed images, because all methods known so far will mostly reflect the noise in the image.
