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. 2020 Aug 11;15(3):107–116. doi: 10.5469/neuroint.2020.00150

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Copyright © 2020 Korean Society of Interventional Neuroradiology

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 5. — (A) Anterior-posterior digital subtraction angiography (DSA) angiogram of the basilar artery and Circle of Willis. The flow directed marathon catheter tip is at the basilar artery bifurcation without deforming the natural basilar artery curvature. (B) Roadmap demonstrating the flowdirected microcatheter being advanced over the wire to the posterior communicating artery) PCoA: carotid junction. (C) Microcatheter contrast injection DSA demonstrating the catheter near the PCoA: carotid artery junction. (D) Pre-catheterization posterior circulation angiogram demonstrating the flowdirected microcatheter in the distal basilar. (E) Road map image showing the flowdirected microcatheter advanced into the right superior cerebellar artery (SCA), making a >180 degree turn without deforming the arterial tree. (F) Superselective contrast injection into the SCA with some reflux into the right PCoA.