Characteristics of the 71 Patients Imaged After Tumor Resection
| Characteristic | Uptake ratio > 1.7 | Uptake ratio ≤ 1.7 | P |
|---|---|---|---|
| Median survival (mo) | 12 | Not reached | <0.001 |
| Mean age ± SD (y) | 53 ± 11 | 47 ± 14 | 0.12 |
| WHO grade | 0.24 | ||
| II | 1 (3%) | 5 (14%) | |
| III | 14 (40%) | 13 (36%) | |
| IV | 20 (57%) | 18 (50%) | |
| Chemotherapy (BCNU) | 11 | 14 | 0.51 |
WHO = World Health Organization; BCNU = 1,3-bis-(2-chloroethyl)-1-nitrosourea.
Median survival was significantly shorter in patients with IMT uptake ratio > 1.7 than in patients with lower IMT uptake ratio. These 2 groups of patients did not differ significantly in other known prognostic variables such as age, grading, and use of chemotherapy.