Key result
The shape of the velocity profile varied cyclically according to the cardiac cycle, closely relating to the variation of the echogenicity distribution in pulsatile flows.
Population
Rat extracorporeal bypass model
Design
Preclinical
Follow-up
2 hours
Authors
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Ultrasound speckle imaging may clarify pulsatile hemorheology; animal data leave human applicability open.
Simultaneous measurement of velocity and RBC aggregation using ultrasound speckle images can help understand hemorheological features in pulsatile blood flows.
Yeom et al. (2015) studied this question. Pulsatile blood flow was evaluated on Relationship between velocity profile and RBC aggregation. The shape of the velocity profile varied cyclically according to the cardiac cycle, closely relating to the variation of the echogenicity distribution in pulsatile flows.
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