Table 2: Patients’ demographic information.

No. Dose Collateral circulation Sex Age Stenosis 1 H P M 80 LIC (90%) 2 H P M 41 LIC (90%) 3 H P F 70 RIC occlusion 4 H P M 86 LIC (80%) 5 H P M 76 RIC (80%) 6 H P M 71 LIC stenosis 7 H G M 79 RIC (60%) 8 H G M 67 RIC (65%) 9 H G M 52 RIC occlusion 10 H G M 85 LIC (75%) 11 H G M 59 RIC (40%) 12 H G M 78 LIC (60%) 13 H N M 81 Normal 14 H N F 81 Normal 15 H N M 79 Normal 16 H N M 79 Normal 17 H N F 83 Normal 18 H N M 61 Normal 19 F P M 58 LIC (95%) 20 F P M 75 RIC (95%) 21 F P M 75 LIC (90%) 22 F P M 82 RIC (90%), M1 (95%) 23 F P M 69 RIC (90%), M1 (70%) 24 F P F 66 LIC (90%), M1 (95%) 25 F G M 78 RCC (70%) 26 F G M 76 RIC (75%) 27 F G M 78 RIC (75%) 28 F G M 79 RIC (70%) 29 F G M 70 LIC (90%) 30 F G M 75 RIC (75%)

The abbreviations used are H: half dose, F: full dose, P: poor collateral circulation, G: good collateral circulation, N: no carotid or M1 stenosis, M: male, F: female, RIC: right internal carotid, RCC: right common carotid artery, LIC: left internal carotid, and M1: horizontal segment of the middle cerebral artery. Normal: the bilateral carotid system including M1 is normal.