Table 2.
Comparison of semi-quantitative parameters and lesions detection between 18F-FDG and 68Ga-DOTATATE PET/CT.
| Site of disease | No. of patients | No. of lesions | 18F-FDG uptake | 68Ga-DOTATATE uptake | P value (SUVmax) | P value (lesions detection) | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| SUVmax | No. of Positive Lesions | Detection rates (%) | SUVmax | No. of Positive Lesions | Detection rates | |||||
| Primary tumors | 37 | 37 | 15.83 ± 8.31 | 36 | 97.3 | 8.79 ± 3.84 | 37 | 100% | < 0.001 | N |
| Local recurrence | 5 | 5 | 11.7* (7.7–26.7) | 5 | 100 | 7.4* (5.0-10.5) | 4 | 80% | N | N |
| Lymph nodes | 36 | 202 | 9.6 ± 7.05 | 202 | 100 | 6.0 ± 4.17 | 200 | 99.0% | < 0.001 | 0.05 |
| Distant metastases | ||||||||||
| Liver | 3 | 23 | 4.7* (3.4–25.5) | 23 | 100 | 10.0* (8.4–10.8) | 7 | 30.4% | 0.02 | <0.001 |
| Lung | 2 | 24 | 3.95* (1.4–25.9) | 24 | 100 | 1.65* (0.9–5.3) | 24 | 100% | < 0.001 | N |
| Bone | 5 | 45 | 11.1 ± 10.02 | 38 | 84.4 | 6.33 ± 3.74 | 44 | 97.8 | < 0.001 | 0.07 |
Data were presented as mean ± standard deviation. *median, N = not application.