Comparisons of perfusion measures (cerebral blood flow, cerebral blood volume, and mean transit time) in patients with multiple sclerosis of each lesion type with their contralateral normal-appearing white matter
| Lesion Type | Cerebral Blood Flow (P) | Cerebral Blood Volume (P) | Mean Transit Time (P) |
|---|---|---|---|
| Enhancing | .007 | <.0001 | .99 |
| Nonenhancing: class 1 | <.0001 | .0001 | <.0001 |
| Nonenhancing: class 2 | .16 | .02 | .12 |
Enhancing indicates enhancing lesions; nonenhancing: class 1, nonenhancing lesions with decreased perfusion and perfusion measures dissimilar to those of enhancing lesions; nonenhancing: class 2, nonenhancing lesions with increased perfusion and perfusion measures similar to those of enhancing lesions.