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. 2018 Dec 20;20:86. doi: 10.1186/s12968-018-0499-y

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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. 7 — Ultrasound- and CMR-based PWV measurements in the flow phantom. a Flow in mL/s measured at 14 positions along the tube (every 2 cm) with the ultrasound probe (top) and with CMR (bottom). b Close-up of the region between 120 and 280 ms for better visibility of the time shifts between the curves. c Transit time versus the distance between the tubes. A linear fit yields the PWV