Table 3 The positive and negative predictive value of nodal metastasis following imaging exams among various baseline possibilities of neck nodal metastasis
Imaging Modalities | Baseline possibility of neck nodal metastasis | Positive predictive value* | Negative predictive value& |
|---|---|---|---|
CT | 10% | 47% | 95% |
20% | 66% | 89% | |
30% | 77% | 82% | |
MRI | 10% | 27% | 95% |
20% | 46% | 90% | |
30% | 59% | 84% | |
PET | 10% | 36% | 96% |
20% | 56% | 91% | |
30% | 69% | 86% | |
US | 10% | 25% | 95% |
20% | 42% | 90% | |
30% | 56% | 84% |