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Table 3 Acquisition and reconstruction parameters for each test

From: Evaluation of PET quantitation accuracy among multiple discovery IQ PET/CT systems via NEMA image quality test

 Test 1Test 3Test 5
Matrix size256256256
FOV (cm)4040–7040–70
Reconstruction algorithmOSEMOSEMOSEM
Iterations84–64–6
Subsets121212
Filter (FWHM)24.8–6.44.8–6.4
Z-filterNoneStandard (weight 1 4 1)Standard (weight 1 4 1)
CorrectionsCTAC, scatter, randomsCTAC, scatter, randomsCTAC, scatter, randoms
PSF correctionNoYes/noYes/no
 Test 2Test 4Test 6
Matrix size256256256
FOV (cm)4040–7040–70
Reconstruction algorithmBSREMBSREMBSREM
Iterations252525
β25350350
CorrectionsCTAC, scatter, randomsCTAC, scatter, randomsCTAC, scatter, randoms
PSF correctionYesYesYes