One-Year PFS and OS by 18F-FDG Uptake
| Baseline 18F-FDG uptake | n | 1-y PFS ± SE | 1-y OS ± SE |
| <White matter (no further data) | 6 | 15.2% ± 5.7% | 53.4% ± 8.6% |
| =White matter | 4 | ||
| >White matter < gray matter | 23 | ||
| =Gray matter | 1 | 14.3% ± 9.4% | 28.6% ± 13.9% |
| >Gray matter | 6 |
Patients with 18F-FDG uptake similar to or greater in tumor than in gray matter were compared with the others ( Fig. 3).