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. 2022 Aug 22;13:813207. doi: 10.3389/fneur.2022.813207

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Copyright © 2022 Chen, Zhang, Zhu, Wang, Fan, Ni, Dong, Lv and Liu.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Digital subtraction angiography left internal carotid artery (ICA) demonstrated the left basal ganglia arteriovenous malformation in case 1 (A). Superselective arteriography and embolization via the anterior choroidal artery (B). Immediate angiography of left ICA after transarterial embolization showed a residual small nidus (C). TVE was performed due to the lack of optimal arterial access. Dual microcatheters (black arrows) were positioned in the origin of the venous collector and a balloon microcatheter (white arrow) was placed in the ipsilateral internal carotid artery (D). After the balloon was inflated to provisionally occlude the internal carotid artery, we used the PCT to occlude the nidus (E). Digital subtraction angiography 4 months later confirmed AVM obliteration (F).