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. 2021 Oct 25;12:734971. doi: 10.3389/fneur.2021.734971

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Copyright © 2021 Al Kasab, Almallouhi and Spiotta.

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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Illustrative case of ICAS-related LVO in the cavernous segment of the right internal carotid artery. (A) Pre-MT angiographic image demonstrating complete occlusion of cavernous segment of the right internal carotid artery. (B) Post-MT angiographic image demonstrating partial recanalization of cavernous segment of the right internal carotid artery with persistent severe stenosis. (C) Delayed angiographic image 5 min post-MT demonstrating re-occlusion of the intracranial internal carotid artery. (D) Native (left) and digitally subtracted (right) angiographic images demonstrating successful angioplasty and stenting as a rescue therapy, with a significant improvement in the severe stenosis and near complete recanalization of the right internal carotid artery. ADAPT, a direct aspiration first pass technique; MT, mechanical thrombectomy; ICAS, intracranial atherosclerosis; ELVO, emergent large vessel occlusion.