Arjen Lindenholz

153 Intracranial Atherosclerotic Burden and Cerebral Parenchymal Changes at 7T MRI 6 Supplemental Material Supplemental Table 1. The total number of (enhancing) vessel wall lesions of the anterior circulation, specified by arterial segment. Location Left (mean) Left enhancing (mean) Right (mean) Right enhancing (mean) Total (mean) Total enhancing (mean) Anterior cerebral artery A1 segment 5 (6%) B 0 (0%) E 9 (11%) A 1 (1%) D 14 1 A2 segment 2 (3%) C 0 (0%) D 7 (9%) B 3 (4%) D 9 3 Middle cerebral artery M1 segment 20 (24%) A 10 (13%) D 25 (31%) B 12 (16%) D 45 22 M2 segment 19 (25%) D 8 (11%) D 11 (15%) D 1 (1%) D 30 9 Internal carotid artery (Supra-)clinoid segment 24 (29%) A 13 (17%) D 28 (34%) A 16 (21%) D 52 29 Terminal segment 21 (26%) A 6 (8%) D 22 (27%) B 11 (15%) E 43 17 Supplemental Table 1. The total number of (enhancing) vessel wall lesions, specified by arterial segment. Mean (in percentages) was calculated as total number of lesions that were detected in the specified segment over all patients divided by the number of segments that could be assessed over all patients. The number of patients in whom a segment could be assessed: A n = 82, B n = 81, C n = 80, D n = 76, E n = 75.