Table 2.
Correlation between PET velocity and outcome
| Outcome | Hazard ratio (95% CI) | p-value |
|---|---|---|
| Progression alone | ||
| SUV velocity | ||
| Primary tumor | 0.75 (0.45–1.25) | 0.27 |
| Lymph nodes | 0.69 (0.42–1.16) | 0.16 |
| Composite | 0.74 (0.45–1.22) | 0.24 |
| MTV velocity | ||
| Primary tumor | 2.94 (1.31–6.62) | 0.009 |
| Lymph nodes | 1.38 (0.61–3.12) | 0.44 |
| Composite | 2.14 (1.12–4.09) | 0.021 |
| Cancer-specific survival | ||
| SUV velocity | ||
| Primary tumor | 0.77 (0.46–1.28) | 0.31 |
| Lymph nodes | 0.78 (0.48–1.28) | 0.33 |
| Composite | 0.79 (0.49–1.27) | 0.32 |
| MTV velocity | ||
| Primary tumor | 2.43 (1.32–4.48) | 0.004 |
| Lymph nodes | 0.91 (0.42–1.94) | 0.80 |
| Composite | 1.66 (0.96–2.84) | 0.068 |
| Overall survival | ||
| SUV velocity | ||
| Primary tumor | 0.81 (0.56–1.16) | 0.25 |
| Lymph nodes | 0.88 (0.57–1.36) | 0.57 |
| Composite | 0.83 (0.58–1.18) | 0.30 |
| MTV velocity | ||
| Primary tumor | 1.85 (1.05–3.24) | 0.032 |
| Lymph nodes | 0.79 (0.41–1.52) | 0.48 |
| Composite | 1.27 (0.8–2.02) | 0.31 |