Patient demographics, including history of stroke or TIA, infarcts, and arterial disease
| Patient | Age (years) | Sex | Stroke/TIA | Brain Infarct | Carotid Stenosis | VB Stenosis | VB Rating |
|---|---|---|---|---|---|---|---|
| 1 | 62 | M | Multiple TIAs | R thalamus and pons | No | Severe R VA, occlusion L VA | Severe |
| 2 | 65 | M | Stroke | R cerebellar, bilat occipital | No | High-grade R VA | Moderate |
| 3 | 71 | F | Stroke, multiple TIAs | No | No | High-grade R VA, low-grade L VA | Severe |
| 4 | 49 | M | Stroke, then TIA | R cerebellar | No | Occlusion R VA, low-grade L VA | Moderate |
| 5 | 59 | F | Stroke, then TIA | No | No | Bilateral VA, moderate BA | Moderate |
| 6 | 54 | M | Stroke | Bilat cerebellar, R occipital | No | L VA occluded, high-grade R VA | Severe |
| 7 | 50 | M | Multiple TIAs | No | No | Moderate BA | Moderate |
| 8 | 87 | M | Stroke | No | No | No | None |
| 9 | 79 | M | TIA | No | L 20%, R 30% | No | None |
| 10 | 52 | M | TIA | No | No | Low-grade L VA | None |
| 11 | 76 | F | Stroke | No | No | No | None |
| 12 | 52 | F | Stroke | Occipital | No | No | None |
| 13 | 64 | F | TIA | No | No | No | None |
| 14 | 73 | M | TIA | No | R ICA | No | None |
| 15 | 75 | F | TIA | No | L 20%, R 15% | No | None |
| 16 | 73 | M | TIA | No | No | No | None |
| 17 | 50 | F | Stroke | L occipital | No | R VA stenosis | Moderate |
| 18 | 75 | M | Multiple TIAs | R cerebellar | No | Occlusion R VA | Moderate |
| 19 | 78 | M | TIA, then stroke | No | No | Severe BA | Severe |
| 20 | 70 | M | Multiple TIAs | No | No | Medium-grade bilateral VA | Moderate |
| 21 | 62 | M | TIA | No | L 20%, R 20% | No | None |
Note:—Expected degree of hypoperfusion is based on blinded and unanimous agreement from 3 neurologists. Bilat indicates bilateral; L, left; R, right; VA, vertebral artery.