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Table 1 Overview of a number of images and patients/lesions as well as PET image reconstruction parameters before image harmonization for the different PET scanners

From: Quantitative performance of 124I PET/MR of neck lesions in thyroid cancer patients using 124I PET/CT as reference

Systema Images Number of patient Early and/or late images Number of lesions Emission time (min)b Iteration/Subs. Voxel size (mm3) 3D Gaussian filter (mm) Resolution (mm)c
Duo 10 5 24 h + 120 h 24 3.5 4/16 1.73 × 1.73 × 2.43 0 6.6
  7 7 24 h 20 3.5 4/16 1.53 × 1.53 × 2.43 0 6.6
mCT 2 1 24 h + 120 h 8 2 6/12 2.04 × 2.04 × 2.03 4 6.8
  6 3 24 h + 120 h 22 2 6/12 1.45 × 1.45 × 1.50 4 6.8
mMR 12 6 24 h + 120 h 32 8 3/21 2.09 × 2.09 × 2.03 5 7.0
  6 3 24 h + 120 h 22 8 3/21 2.09 × 2.09 × 2.03 4 6.3
  5 5 24 h 16 8 3/21 1.74 × 1.74 × 2.03 4 6.3
  2 2 24 h 4 8 3/21 2.09 × 2.09 × 2.03 4 6.3
  1. aBiograph Duo PET/CT, Biograph mCT PET/CT, and Biograph mMR PET/MR
  2. bEmission time per bed
  3. cEstimated reconstructed PET spatial resolution