Table 4 18F-FDG PET/CT in the detection of CRC recurrence in patients with different CEA patterns
PET/CT diagnostic properties | |||||
|---|---|---|---|---|---|
Sensitivity | Specificity | PPV | NPV | ||
CEA quartiles | Q1 (n = 19) | 100.0 % | 92.9 % | 83.3 % | 100.0 % |
Q2 (n = 18) | 75.0 % | 90.0 % | 85.7 % | 81.8 % | |
Q3 (n = 18) | 70.0 % | 100.0 % | 100.0 % | 72.7 % | |
Q4 (n = 18) | 100.0 % | 100.0 % | 100.0 % | 100.0 % | |
CEA rise type | 1 increase (n = 30) | 94.4 % | 83.3 % | 89.5 % | 90.9 % |
2 increases (n = 26) | 70.0 % | 100.0 % | 100.0 % | 84.2 % | |
>2 increases (n = 5) | 100.0 % | 100.0 % | 100.0 % | 100.0 % | |
Persistently elevated (n = 12) | 75.0 % | 100.0 % | 100.0 % | 88.9 % | |