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. 2024 Nov 13;15:1466864. doi: 10.3389/fneur.2024.1466864

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Copyright © 2024 Wang, Bian, Zhang, Zhu, Yang, Wang, Liu, Lv, Cao, Dai, Sun, Jing, Du, Yu and Wang.

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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Typical case: A 52-year-old male was admitted due to intermittent dizziness with blurred vision in the right eye for 20 days. Panel (A) showed severe basilar artery stenosis (yellow arrow) before surgery; (B) the CVPR and RFR values of the distal stenosis measured using an invasive pressure wire were 0.73 and 0.66; and (C) the calculated QFRwas 0.68 in the same lesion. The bottom row presented the postoperative figure, and panel (D) showed an obvious improvement in stenosis; (E) the CVPR and RFR values were increased to 0.92 and 0.91; and (F) QFR was noted to have recovered significantly to 0.94.