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Table 3 Unsigned differences in TLG after coregistration

From: Influence of rigid coregistration of PET and CT data on metabolic volumetry: a user’s perspective

  RF RS
  ∆TLG (ml) ∆TLG (%) ∆TLG (ml) ∆TLG (%)
CT1     
  Mean 0.9 2.9 0.6 3.2
  Median 0.4 2.1 0.4 1.8
  IQR 0.2 to 0.7 1.2 to 4.2 0.2 to 0.8 0.8 to 4.8
  Range 0.0 to 8.1 0.2 to 9.9 0.1 to 2.2 0.2 to 12.6
CT5     
  Mean 2.1 5.3 2.1 5.4
  Median 0.6 3.2 0.7 3.8
  IQR 0.2 to 1.8 1.7 to 5.3 0.5 to 0.9 1.9 to 6.1
  Range 0.0 to 20.6 0.1 to 22.1 0.0 to 20.3 0.3 to 20.8
  1. RF, rigid fast; RS, rigid slow; CT1, 1-mm-slice thickness; CT5, 5-mm-slice thickness.