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Table 1: 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.