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Table 2 Spatial resolution performance

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

Parameter    
Spatial resolution Position (cm) FWHM (mm) FWTM (mm)
Radial 1 3.5 6.7
  10 4.5 8.2
  20 5.8 10.0
Tangential 1 3.8 7.5
  10 4.0 7.4
  20 3.6 6.7
Axial 1 3.5 6.9
  10 4.2 8.3
  20 4.2 8.9
  1. Source: Na22 source, 0.25-mm diameter
  2. Reconstruction: Fourier rebinning combined with a filtered back projection without attenuation, scatter corrections ,and no post-filtering. The voxel size was 0.83 × 0.83 × 0.83 mm3 (matrix size 880 × 880 × 237)