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. 2019 Oct 23;16(159):20190572. doi: 10.1098/rsif.2019.0572

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© 2019 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 2. — Periarterial flow in mouse pial arteries, as revealed by particle tracking (from Mestre et al. [21]). (a) Superimposed trajectories of tracked microspheres. (b) Time-averaged velocity field (green arrows), showing net flow in the direction of the blood flow. (c) Time-averaged flow speed. (d) Representative traces of the ECG and the root-mean-square flow velocity V_rms, showing synchrony with the heartbeat. (e) Representative traces of the ECG and the artery diameter, showing the shape of the wall wave driving the perivascular pumping. (Online version in colour.)