Volumes of abnormality expressed as a percentage of the entire T2 lesion for GBM and single brain metastasis
| Tumor | Contrast-Enhancing Lesion | Necrosis | Abnormal Peak Height | <50% SI Recovery/T2 L | >75% SI Recovery/T2 L |
|---|---|---|---|---|---|
| GBM (n = 27) | 28.8 (31.5) | 14.8 (18.6) | 22.2 (22.7) | 0.4 (1.1) | 79.5 (16.7) |
| MET (n = 16) | 24.3 (28.0) | 12.0 (17.3) | 9.2 (19.1) | 8.6 (25.6) | 52.2 (42.6) |
| Wilcoxon P value | >.5 | .44 | .14 | <.01 | <.01 |
Note:—GBM indicates glioblastoma multiforme; MET, single brain metastasis; SI, signal intensity; T2 L, entire T2 lesion. Data are median percentages. Numbers in parentheses are interquartile range.