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Performance of FDG-PET/CT for detection of recurrence by site
| PET/CT | Sensitivity ;(%) | Specificity (%) | PPV ;(%) | NPV (%) | Accuracy ;(%) |
| Locala | 77 | 76 | 16 | 98 | 76 |
| Regional | 88 | 86 | 45 | 97 | 87 |
| Distant | 97 | 96 | 91 | 99 | 96 |
FDG-PET/CT, fludeoxyglucose-positron emission tomography; NPV, negative-predictive value; PET, positron emission tomography; PPV, negative-predictive value.
aLocal, at anastomotic site; regional, at regional lymph nodes; distant, at distant sites
