Mean values for the unaffected (normal) and affected (abnormal) regions of interest for each parameter
| Normal (mean (±SD) (95% CI)) | Abnormal (mean (±SD) (95% CI)) | p Value | Abnormal as % of normal (mean (±SD) (95% CI)) | |
| CBV (ml/100 g) | 2.7 (0.7) (2.5 to 3) | 1.6 (0.9) (1.4 to 1.9) | <0.0001 | 53.9 (19.8) (49 to 58.7) |
| CBF (ml/100 g/min) | 49.9 (23.8) (45.4 to 54.4) | 21.9 (12.5) (19.6 to 24.3) | <0.0001 | 45.6 (12.9) (43.2 to 48.1) |
| MTT (s) | 4.3 (1.2) (4.1 to 4.5) | 9.2 (2) (8.8 to 9.5) | <0.0001 | 221.8 (53.9) (211.6 to 232) |
The relative perfusion value is shown as a percentage difference between the abnormal and normal regions. This was the mean percentage difference that allowed detection of a perfusion abnormality between the two sides.
CBF, cerebral blood flow; CBV, cerebral blood volume; MTT, mean transit time.