Classification of patients (total of 229) examined by PET
| No symptoms and no lesions on CT | 9 | → Control group |
|---|---|---|
| Brain infarction (BI) | 122 | |
| Asymptomatic | 9 | → SBI group |
| Symptomatic | 94 | |
| Cardiogenic embolism | 5 | |
| Thrombosis | 80 | |
| ICA or MCA occlusion or severe stenosis: | ||
| + | 56 | |
| − | 24 | |
| Cortical lesion: | ||
| + | 5 | |
| − | 19 | → BI group |
| Unclassified | 9 | |
| Transient ischaemic attack | 20 | |
| Brain haemorrhage | 7 | |
| Dementia | 33 | |
| Brain tumour | 5 | |
| Neurological degenerative disease | 18 | |
| Metabolic encephalopathy | 10 | |
| Others | 24 |
ICA=internal carotid artery; MCA=middle cerebral artery.