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Table 1 Technical specifications of the PET component for Vision 450 (Vision 600 within brackets) and Biograph mCT

From: From a PMT-based to a SiPM-based PET system: a study to define matched acquisition/reconstruction parameters and NEMA performance of the Biograph Vision 450

Characteristics Vision 450 (Vision 600) Biograph mCT
Crystal dimension 3.2 × 3.2 × 20 mm3 4 × 4 × 20 mm3
Number of crystals per mini block 5 × 5 NA
Number of mini blocks per block 4 × 2 NA
Number of blocks per ring 38 48
Number of blocks in axial FOV 6 (8) 4
Axial FOV (cm) 19.7 (26.3) 21.6
Image planes 119 (159) 109
Plane spacing (mm) 1.65 2
Bed overlap for step and shoot mode (number of slices) 57 (79) 47
Maximum ring difference 59 (79) 49
Span 17 11
Coincidence time window (ns) 4.7 4.1
Energy window (keV) 435–585 435–650