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. 2018 Feb 1;17:15. doi: 10.1186/s12938-018-0445-0

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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. 2 — Graphs showing the mean perfusion pressure, flow and EEP of 30 s data at each specified time period. Initially, the mean perfusion pressures in both groups showed no difference (a). The mean perfusion flow of the SDS solution increased more rapidly in the pulsatile group (b). The baseline EEP (Energy Equivalent Pressure), before pulsatile flow was applied, showed no difference between the two groups. After pulsatile flow was applied, the EEP was dramatically increased (c). Pulse pressure shown for comparison with EEP (d). *p < 0.05