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In nine healthy subjects, magnetic resonance imaging was used to measure blood flow waveforms in the common (CCA), internal (ICA) and external (ECA) carotid arteries. Useful data were acquired from 14 carotid arteries in total. Flow rates were determined from regions of interest placed over the arteries in CINE-phase contrast velocity encoded images. Use of a normalized cardiac cycle allowed the combination of flow waveforms from individuals. Time-averaged group mean flow rates were 6.16, 4.14 and 1.59 ml s(-1) for the CCA, ICA and ECA, respectively. Time-averaged values for the flow division ratios ICA/CCA, ECA/ICA and ECA/CCA were 0.70, 0.39 and 0.26, respectively. The data will be of use in future physiological studies and in computational modelling of carotid artery haemodynamics.

Type

Journal article

Journal

Physiological measurement

Publication Date

06/2004

Volume

25

Pages

691 - 697

Addresses

Medical Physics, Division of Medical and Radiological Sciences, University of Edinburgh, Western General Hospital, Edinburgh, EH4 2XU, UK. ian.marshall@ed.ac.uk

Keywords

Carotid Arteries, Humans, Image Interpretation, Computer-Assisted, Magnetic Resonance Angiography, Blood Flow Velocity, Sensitivity and Specificity, Adult