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Table 3 Lesion characteristics

From: Comparing lesion detection efficacy and image quality across different PET system generations to optimize the iodine-124 PET protocol for recurrent thyroid cancer

Lesion ID AR Size (mm) SUVmax
mMR
20-min
SUVmax
Vision
OSEM-TOF
ACmax
mMR 20-min
(kBq/mL)
ACmax
Vision OSEM-TOF
(kBq/mL)
SBR
mMR
20-min
1 CLN 13 15.2 14.0 4,6 4.2 42.6
2 CLN 17 8.8 9.9 2.6 3.5 25.7
3 CLN 9 3.1 3.4 0.9 1.0 10.7
4 CLN 7 2.3 0.8 12.6
5 Bone < 6 8.4a 3.1 3.2a 1.2 14.4
6 TB 16 10.2 9.9 4.7 4.6 29.6
7 CLN 6 3.0 2.2 1.4 1.0 8.4
8 TB <6 5.6 5.1 2.4 2.8 7.1
9 CLN 4 3.0 1.8 1.3 0.9 6.5
  1. AR Anatomical region, CLN Cervical lymph node, TB Thyroid bed, SBR Signal-to-background ratio (only reported for the 20-min acquisition on the mMR, in which all lesions were detectable)
  2. aPotentially artificially elevated activity concentration in PET/MR attenuation correction, as the bone lesion was osteolytic