Characteristics of 18F-FDG Uptake in Viable Lipiodolized and Treatment-Naïve HCCs
| Viable lipiodolized HCCs at < 3 mo after TACE (n = 16) | Viable lipiodolized HCCs at ≥ 3 mo after TACE (n = 14) | Viable lipiodolized HCCs overall (n = 30) | Naïve HCCs (n = 57) | |||||||||
| Characteristic | Grade III uptake* (n = 12; 75%) | Grade I or II uptake* (n = 4; 25%) | P | Grade III uptake* (n = 7; 50%) | Grade I or II uptake* (n = 7; 50%) | P | Grade III uptake* (n = 19; 63%) | Grade I or II uptake* (n = 11; 37%) | P | Grade III uptake* (n = 27; 47%) | Grade II uptake* (n = 30; 53%) | P |
| Tumor size (cm) | 7.2 ± 2.6 | 4.1 ± 1.4 | 0.014 | 4.7 ± 2.5 | 3.7 ± 1.4 | NS | 6.3 ± 1.3 | 3.8 ± 1.3 | 0.011 | 6.8 ± 3.1 | 3.4 ± 2.4 | <0.001 |
| Pathology grade | NS | NS | NS | 0.017 | ||||||||
| Low | 7 | 4 | 4 | 2 | 11 | 6 | 15 | 26 | ||||
| High | 5 | 0 | 3 | 5 | 8 | 5 | 12 | 4 | ||||
| AFP level | NS | NS | NS | NS | ||||||||
| Normal | 3 | 1 | 3 | 5 | 6 | 6 | 8 | 10 | ||||
| Increased | 9 | 3 | 4 | 2 | 13 | 5 | 19 | 20 | ||||
| Liver cirrhosis | NS | NS | NS | NS | ||||||||
| No | 4 | 1 | 0 | 0 | 4 | 1 | 13 | 11 | ||||
| Yes | 8 | 3 | 7 | 7 | 15 | 10 | 14 | 19 | ||||
↵* Grade I, no 18F-FDG uptake or lower 18F-FDG uptake than that in normal liver; grade II, 18F-FDG uptake similar to that in normal liver; grade III, higher 18F-FDG uptake than that in normal liver.
NS = not significant.