TABLE 5

Differences Between Upper Lung Area and Lower Lung Area

CharacteristicUpper lung area (n = 78)*Lower lung area (n = 30)†P
Patient age66.5 ± 9.866.9 ± 9.9NS
BMI22.2 ± 3.121.7 ± 2.5NS
18F-FDG dosage (MBq/kg)4.66 ± 1.484.60 ± 1.45NS
BH time (s)56.1 ± 22.249.3 ± 15.7NS
Maximum diameter (cm)2.61 ± 0.752.28 ± 0.630.0410
SUVmaxFB9.12 ± 5.485.32 ± 2.740.0003
SUVmaxBH10.52 ± 6.197.85 ± 3.91NS
%BH-index16.9 ± 25.651.8 ± 49.5<0.0001

  • ↵* Upper lung area includes S1, S2, S1 + 2, S3, S4, S5, S4 + 5, and S6.

  • ↵† Lower lung area includes S7, S8, S9, and S10.

  • NS = not statistically significant (P > 0.05).

  • Data are mean ± SD.