Table 4 Diagnostic results of nodal staging of the neck (N-staging) in twenty-seven patients by using MRI, PET/CT, side-by-side analysis and retrospective PET-MRI fusion as clinical N-staging with imaging (cN) and correlation to the histopathological results (pN)
From: Diagnostic value of retrospective PET-MRI fusion in head-and-neck cancer
MRI | PET/CT | Side-by-side/PET-MRI Fusion | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Â | cN0 | cN1 | cN2a | cN2b | cN2c | Â | cN0 | cN1 | cN2a | cN2b | cN2c | Â | cN0 | cN1 | cN2a | cN2b | cN2c |
pN0 | 7 | 1 | 0 | 1 | 2 | pN0 | 10 | 1 | 0 | 0 | 0 | pN0 | 9 | 2 | 0 | 0 | 0 |
pN1 | 0 | 2 | 0 | 0 | 0 | pN1 | 0 | 2 | 0 | 0 | 0 | pN1 | 0 | 2 | 0 | 0 | 0 |
pN2a | 0 | 0 | 2 | 0 | 0 | pN2a | 0 | 0 | 2 | 0 | 0 | pN2a | 0 | 0 | 2 | 0 | 0 |
pN2b | 1 | 1 | 0 | 7 | 1 | pN2b | 1 | 2 | 0 | 6 | 1 | pN2b | 1 | 1 | 0 | 7 | 1 |
pN2c | 0 | 1 | 0 | 0 | 1 | pN2c | 0 | 0 | 0 | 0 | 2 | pN2c | 0 | 0 | 0 | 0 | 2 |
Correct staging: 70.4% | Correct staging: 81.5% | Correct staging: 81.5% | |||||||||||||||
Over-staging: 18.5% | Over-staging: 7.4% | Over-staging: 11.1% | |||||||||||||||
Under-staging: 11.1% | Under-staging: 11.1% | Under-staging: 7.4% | |||||||||||||||