Endovascular coil embolization of middle cerebral artery aneurysms of the proximal (M1) segment.

摘要: Proximal middle cerebral artery (M1 segment) aneurysms have various configurations and are distinct from bifurcation aneurysms. We present the clinical radiological results of coil embolization M1 segment From a prospective database, we retrieved data for 59 consecutive patients harboring 60 M1 that were treated with endovascular January 2006 to May 2012. assessed outcomes morphological using Raymond classification. The located on superior wall in 43 inferior 17. Superior-wall related frontal cortical lateral lenticulostriate perforator while inferior-wall temporal artery. With embolization, complete aneurysmal occlusion or residual neck could be achieved 52 (86.7 %) aneurysm 8. microcatheter protection technique was most commonly used (41.7 %) followed by single (31.7 %), double (23.3 %), stent (3.3 %). There no procedure-related morbidity mortality. Follow-up angiography more than 6 months after (n = 46; mean 12.4 months) demonstrated stable 40 (87.0 %), minor recanalization 4 (8.7 %), major 2 (4.3 %). One patient experienced delayed infarction without permanent neurologic deficit. Coil seems safe efficacious, although it may require technical strategies due anatomic configurations.