EJNMMI Physics

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 1	Test 3	Test 5
Matrix size	256	256	256
FOV (cm)	40	40–70	40–70
Reconstruction algorithm	OSEM	OSEM	OSEM
Iterations	8	4–6	4–6
Subsets	12	12	12
Filter (FWHM)	2	4.8–6.4	4.8–6.4
Z-filter	None	Standard (weight 1 4 1)	Standard (weight 1 4 1)
Corrections	CTAC, scatter, randoms	CTAC, scatter, randoms	CTAC, scatter, randoms
PSF correction	No	Yes/no	Yes/no
	Test 2	Test 4	Test 6
Matrix size	256	256	256
FOV (cm)	40	40–70	40–70
Reconstruction algorithm	BSREM	BSREM	BSREM
Iterations	25	25	25
β	25	350	350
Corrections	CTAC, scatter, randoms	CTAC, scatter, randoms	CTAC, scatter, randoms
PSF correction	Yes	Yes	Yes

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