Table 2.
Extent of resection (EOR), contrast-enhanced residual tumor volume (CERTV) on postoperative MRI and on simulation [11C]METPET characteristics for the whole cohort.
| n | % | |
|---|---|---|
| Patients | 93 | 100 |
| EOR | ||
| GTR | 45 | 48.3 |
| STR | 18 | 19.4 |
| PR | 16 | 17.2 |
| B | 14 | 15.1 |
| CERTV on postoperative MRI | ||
| Yes | 63 | 67.7 |
| No | 30 | 32.3 |
| Median CE RTV on postoperative MRI | 4.23 (0.17–35.33) | |
| BTV on [11C]METPET | ||
| Yes | 78 | 83.9 |
| No | 15 | 16.1 |
| Median BTV on [11C]MET PET | 8.47 (0.11–62.20) | |
| Median SUVmax [11C]MET PET | 4.03 (2.30–13.90) | |
| Median TBRmax | 4.34 (2.36–12.00) | |
| Location of BTV | 78 | 100 |
| CE + FLAIR abnormalities | 63 | 80.8 |
| Only FLAIR abnormalities | 15 | 19.2 |
EOR—extent of resection; GTR—gross total resection 95–100%; STR—subtotal resection 78–94%; PR—partial resection 30–77%; B—biopsy < 30%; CE RTV—contrast enhanced residual tumor volume; MRI—magnetic resonance imaging; BTV—biological tumor volume; [11C]METPET—11 carbonione methionine-positron emission tomography; TBRmax—maximum tumor-to-background ratio; SUVmax—maximum standardized uptake value.