18F-FDG Uptake and Lymph Node Size (n = 82 Heminecks)*
| Parameter | Uptake or lymph node size | TP (n = 5) | FP (n = 8) | FN (n = 2) | TN (n = 67) |
|---|---|---|---|---|---|
| Residual lymphadenopathy | 18F-FDG uptake | ||||
| SUV max | 4.2 ± 2.0 | 4.2 ± 1.6 | 2.1 | 2.4 ± 0.3 | |
| SUV range | 2.5–7.0 | 2.7–7.3 | 1.8–2.4 | 1.8–3.3 | |
| Residual lymphadenopathy | Lymph nodes | ||||
| Size (cm) | 1.7 ± 0.8 | 1.4 ± 0.4 | 2.0 | 1.7 ± 0.7 | |
| Range (cm) | 1.1–2.4 | 1.1–1.8 | — | 1.0–1.3 | |
| No residual lymphadenopathy | SUV max | 3.9 | 3.3 | 1.8 | 2.3 ± 0.4 |
| SUV range | — | 3.1–3.5 | — | 1.5–3.5 | |
| Δt from end of therapy (wk) | Mean | 14 ± 4 | 10 ± 2 | 9 | 13 ± 4 |
| Range | 9–19 | 8–14 | — | 8–27 |
↵* Two heminecks with equivocal PET/CT findings were excluded from analysis.