Relative peak height and recovery values in and surrounding contrast-enhancing lesions
| Finding | Grade III | Grade IV | P Value |
|---|---|---|---|
| Relative peak height | |||
| Contrast enhancing | |||
| Mean | 1.2 ± 0.8 | 2.0 ± 0.9 | <.5 |
| Maximum | 2.3 ± 1.6 | 6.0 ± 3.2 | <.002 |
| T2 − enhancing | |||
| Mean | 1.1 ± 0.4 | 1.2 ± 0.5 | >.99 |
| Maximum | 5.7 ± 2.7 | 5.8 ± 2.6 | >.5 |
| Percent Recovery | |||
| Contrast enhancing | |||
| Mean | 80.4 ± 11.4 | 77.5 ± 6.7 | <.01 |
| Minimum | 71.1 ± 13.4 | 47.7 ± 17.6 | >.1 |
| T2 − enhancing* | |||
| Mean | 83.7 ± 6.2 | 82.2 ± 4.7 | >.1 |
| Minimum | 56.1 ± 14.6 | 43.3 ± 18.5 | >.5 |