Positron emission tomography results for hemispheres affected or unaffected by arterial disease
| Affected | Non-affected | |
| Benzodiazepine receptor index (%) | ||
| MCA | 30.7±30.6* | 13.0±12.3 |
| ACA | 16.0±16.5* | 12.3±13.2 |
| PCA | 13.4±12.4 | 11.1±10.6 |
| Cerebral blood flow (ml/100 g/min) | ||
| MCA | 43.4±8.1* | 46.3±8.4 |
| ACA | 45.9±9.4* | 47.0±9.4 |
| PCA | 48.4±9.4 | 49.0±9.4 |
| Cerebral metabolic rate of oxygen (ml/100 g/min) | ||
| MCA | 3.65±0.41* | 3.79±0.41 |
| ACA | 3.75±0.48* | 3.81±0.52 |
| PCA | 4.08±0.46 | 4.13±0.43 |
| Oxygen extraction fraction (%) | ||
| MCA | 49.6±6.6* | 48.2±5.9 |
| ACA | 48.6±6.9* | 47.9±6.8 |
| PCA | 48.7±5.9 | 48.8±5.8 |
Values are mean±SD.
Comparative values for CBF, CMRO2 and OEF in the MCA, ACA and PCA distributions in normal volunteers were 52.5±6.0, 50.9±6.3, 60.3±7.1, 4.07±0.42, 3.80±0.40, 4.70±0.64, 44.8±3.4, 43.2±3.0 and 44.9±3.6, respectively.
↵* p<0.05, paired t test.
ACA, anterior cerebral artery; MCA, middle cerebral artery; PCA, posterior cerebral artery.