TABLE 2.

Model Validation Among 3 Compartmental Models Based on AIC for Different ROIs

ModelHeartLungLiverSpleenKidneyPancreasThyroidParotid glandSubmandibular glandMuscleBonePTLNMOM
2T4K200.14 (45.11)363.22 (62.10)218.03 (80.76)57.14 (73.46)154.84 (68.11)180.30 (122.49)159.20 (58.34)104.24 (44.56)48.89 (44.73)159.62 (95.33)249.25 (123.48)−68.57 (82.82)211.95 (126.82)225.37 (161.71)
Irreversible 2-tissue compartment model203.79 (46.39)354.22 (71.63)255.19 (56.81)120.89 (47.19)197.57 (75.15)228.68 (83.31)183.05 (59.47)148.00 (48.08)112.87 (32.84)183.67 (84.87)274.47 (148.32)−0.76 (86.49)229.74 (109.12)233.09 (158.63)
One-tissue compartment model216.64 (49.05)352.32 (71.62)310.83 (41.15)241.75 (69.81)236.64 (57.07)279.22 (99.15)273.52 (52.97)226.40 (79.17)208.13 (60.55)201.30 (87.36)275.62 (143.57)53.27 (89.06)248.55 (103.90)248.46 (149.12)
  • AIC values are mean (SD).

  • ROI = region of interest.