- 作者：Kouhei Nii ; MD ; PhD ; k.nii@cis.fukuoka-u.ac.jp" class="auth_mail" title="E-mail the corresponding author ; Hiroshi Aikawa ; MD ; PhD ; Masanori Tsutsumi ; MD ; PhD ; Ayumu Eto ; MD ; Minoru Iko ; MD ; PhD ; Kimiya Sakamoto ; MD ; PhD ; Ritsuro Inoue ; MD ; PhD ; Takafumi Mitsutake ; MD ; Hayatsura Hanada ; MD ; Kiyoshi Kazekawa ; MD ; PhD
- 关键词：Angiographic results ; intracranial aneurysm ; morphology ; sidewall ; stent-assisted coil embolization
- 刊名：Journal of Stroke and Cerebrovascular Diseases
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：25
- 期：3
- 页码：533-539
- 全文大小：479 K
Methods
Between September 2010 and September 2014, we performed 80 SACE procedures for SW intracranial aneurysms. Angiographic findings, obtained immediately after the procedure, 3-6 months thereafter, and when aneurysmal recanalization was suspected on MR angiogram scan, were recorded. Morphologically, the SW aneurysms were classified as “outside” (OS) and “partially inside” (PI) based on the curve of the axes of the proximal or distal parent artery with respect to the aneurysmal neck. Follow-up angiographic studies on OS- and PI SW aneurysms were compared.
Results
On the initial angiograms, we classified 42 aneurysms as OS and 38 as PI. Immediately after SACE, there was no significant difference in the angiographic findings on OS and PI aneurysms. However, on follow-up angiograms, there was a significant difference in the rate of spontaneous improvement (4 of 42 [OS] versus 21 of 38 [PI], P = .001). We performed additional coil embolization to treat 3 recanalized OS aneurysms.
Conclusions
SW aneurysms classified morphologically as PI tended to occlude progressively even after incomplete occlusion by SACE. In contrast, aneurysms classified as OS must be observed carefully after SACE.