Summary of ROI analysis
| ASL | SPECT | |
|---|---|---|
| ROI size (no. of pixels) | ||
| Frontal (n = 40) | 24.9 ± 5.2 | |
| Temporal (n = 40) | 66.1 ± 9.0 | |
| Avg. CBF (ml/100 g/min) | ||
| All ROIs (n = 80) | 31.5 ± 7.7 | 29.6 ± 6.4 |
| Ipsilateral ROIs (n = 40) | 31.4 ± 8.1 | 29.4 ± 6.7 |
| Contralateral ROIs (n = 40) | 31.6 ± 7.5 | 29.6 ± 6.3 |
| Frontal ROIs (n = 40) | 27.5 ± 5.5 | 26.8 ± 4.5 |
| Temporal ROIs (n = 40) | 35.5 ± 7.6 | 32.3 ± 7.0 |
| Avg. CVR (%) | ||
| All ROIs (n = 60) | 35.4 ± 29.2 | 34.1 ± 23.1 |
| Ipsilateral ROIs (n = 30) | 32.0 ± 31.2 | 31.7 ± 24.1 |
| Contralateral ROIs (n = 30) | 38.4 ± 28.2 | 35.5 ± 23.3 |
| Frontal ROIs (n = 30) | 43.6 ± 33.0 | 40.6 ± 25.4 |
| Temporal ROIs (n = 30) | 27.2 ± 23.2 | 27.6 ± 19.3 |