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. 2018 Mar 20;17:35. doi: 10.1186/s12938-018-0466-8

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© The Author(s) 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 3 — Establishment of the hemodynamic physical model. A–C The obtainment of the morphological data. The entry angle > 90° in A ≈ 90° in B and > 90° in c, respectively. D The grid after meshing and vessel boundary: SSS superior sagittal sinus; BV bridging vein; Black circle dural entrance which is the point that BV entering SSS; α entry angle which is the angle that BV entering the SSS; I-SSS inlet of SSS; BV inlet of BV; O-SSS outlet of SSS; SSU upstream wall of SSS from the dural entrance; SSD downstream wall of SSS from the dural entrance; SSO opposite wall of SSS from the dural entrance; BVU upstream wall of BV from the dural entrance; BVD downstream wall of BV from the dural entrance