Table 1 Magnetic resonance angiography findings
|  | Normal/mild atherosclerotic changes (<30% stenosis) | Moderately stenosed (30–50% stenosis) | Severely stenosed (>50% stenosis) |
|---|---|---|---|
Right middle cerebral artery | 60 (69.8%) | 11 (12.8%) | 15 (17.4%) |
Left middle cerebral artery | 67 (77.9%) | 11 (12.8%) | 8 (9.3%) |
Right anterior cerebral artery | 71 (82.6%) | 10 (11.6%) | 5 (5.8%) |
Left anterior cerebral artery | 70 (81.4%) | 11 (12.8%) | 5 (5.8%) |
Right posterior cerebral artery | 70 (81.4%) | 12 (14.0%) | 4 (4.7%) |
Left posterior cerebral artery | 69 (80.2%) | 11 (12.8%) | 6 (7.0%) |
Overall | 407 (78.9%) | 66 (12.8%) | 43 (8.3%) |