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EJNMMI Physics
Fig. 8 | EJNMMI Physics

Fig. 8

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

Fig. 8

Patient with segment VII hepatocellular carcinoma. The radioembolization was for the management of a local recurrence including several satellite nodules. The acquisition time was 30 min for mCT and Vision (injected activity 2251 MBq of 90Y-microspheres). The reconstruction parameters were OP-OSEM+PSF + TOF, 3 iterations, 21 subsets, and no post-filtering for mCT (200 × 200 matrix size) and OP-OSEM+PSF + TOF, 4 iterations, 5 subsets, and no post-filtering for Vision. Biograph mCT and Vision 450 images were co-registered using rigid transformation. a Fused coronal slice, b selected transaxial slice using full time acquisition for each case, c selected transaxial slice using 15 min 52 s (reduction factor 1.89) for Vision using the 220 × 220 matrix size (middle) and 22 min 23 s (reduction factor 1.34) for Vision using the 440 × 440 matrix size. Grey scale was identical

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