Post hoc pairwise comparisons between grades (Tamahane test)
| Grade III | Grade IV | |
|---|---|---|
| Grade II | ||
| CBV | <.001 | <.001 |
| Ktrans | NS | <.001 |
| CBV (95%) | <.01 | <.001 |
| Ktrans (95%) | <.05 | <.001 |
| Grade III | ||
| CBV | <.05 | |
| Ktrans | NS | |
| CBV (95%) | <.05 | |
| Ktrans (95%) | NS |
Note.—CBV indicates cerebral blood volume; Ktrans, volume transfer coefficient. Grading is according to World Health Organization criteria.