Table 2 Clinical tumor staging of group A by conventional CT scan and PET/CT scan at initial staging. Data in numbers (N) and percentages (%)
Variable | Â | N | % |
|---|---|---|---|
Tumor stage by conventional CT scan | Stage II | 4 | 22.2 |
Stage IIIa | 14 | 77.8 | |
Tumor stage by PET CT scan | Stage II | 4 | 22.2 |
Stage IIIa | 7 | 38.9 | |
Stage IIIb | 5 | 27.8 | |
Stage IVa | 1 | 5.6 | |
Stage IVb | 1 | 5.6 | |
Change of tumor stage based on PET CT scan | Unchanged | 11 | 61.1 |
Upstaged | 7 | 38.9 | |
Change in plan based on PET CT scan | Unchanged | 11 | 61.1 |
Changed from radical to systemic treatment for downstaging | 5 | 27.8 | |
Changed from radical to palliative treatment | 2 | 11.1 |