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. 2020 Jul 24;11:741. doi: 10.3389/fneur.2020.00741

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Copyright © 2020 Yuan, Li, Jiang, Lai, Wang, Zhao, Wu, Liu, Xia, Huang and Fang.

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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Hemodynamic patterns of a representative infundibular dilation of posterior communicating artery (PcomA-ID) and a unruptured carotid-posterior communicating artery bifurcation aneurysm(PcomA-BA). (A) PcomA-ID with a higher angle between the ophthalmic segment of the ICA and the PcomA (ApcomA, 110°); (E) unruptured PcomA-BA with a lower ApcomA (52°). From left to right: (A,E) Three-dimensional models and measurement of ApcomA; (B,F) flow pattern at the systolic peak. (C,G) distribution of wall shear stress(WSS); (D,I) distribution of oscillatory shear index(OSI).