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. 2019 Oct 23;10:1330. doi: 10.3389/fphys.2019.01330

FIGURE 2.

FIGURE 2

Carotid strain obtained with ultrafast ultrasound imaging (A). MRSD (maximum rate of systolic distension) and MRDR (maximum rate of diastolic recoil) (B) are derived from the measurement of the diameter variation over time.