Findings of intraoperative microvascular Doppler ultrasonography (MDU) and their influence on the surgical procedure in 75 patients with 90 aneurysms
| Aneurysm location |
No of aneurysms n (%) |
Insufficient aneurysm closure n (%) |
Stenosis of adjacent vessel n (%) |
Repositioning of aneurysm clip n (%) |
| ACA | 32 (35.6) | 3 (9.4) | 3 (9.4) | 5 (15.6)2-150 |
| MCA | 44 (48.9) | 6 (13.6) | 12 (27.3) | 17 (38.6)2-150 |
| ICA, PCA, PCoA | 10 (11.1) | 1 (10.0) | 1 (10.0) | 2 (20.0) |
| BA, AICA, SCA | 4 (4.4) | 1 (25.0) | 1 (25.0) | 2 (50.0) |
| Total | 90 (100) | 11 (12.2) | 17 (18.9) | 26 (28.8) |
↵2-150 p<0.05.
ACA=anterior cerebral artery (including anterior communicating artery); MCA=middle cerebral artery; ICA=internal carotid artery; PCA=posterior cerebral artery; PCoA=posterior communicating artery; BA=basilar artery; AICA=anterior inferior cerebellar artery; SCA=superior cerebellar artery.