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Validation of volume flow measurements with cine phase-contrast MR imaging for peripheral arterial waveforms

✍ Scribed by Thomas R. McCauley; Constantino S. Pena; Christy K. Holland; Thomas B. Price; John C. Gore

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
680 KB
Volume
5
Category
Article
ISSN
1053-1807

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✦ Synopsis

Abstract

A flow phantom was used to study MR volume flow measurements for monophasic and triphasic waveforms over the flow range expected in peripheral arteries at rest and with exercise (2–24 mL/sec, n = 50). The improvement in accuracy with phase‐correction image processing to eliminate errors caused by eddy currents was measured. Volume flow estimates with Doppler sonography were also measured. MR volume flow measurements correlated with volume collection with r = 0.996 and mean error = 4.6%. Phase–correction processing decreased mean error from 12.6% to 4.6% (P <.001, paired t‐test). Doppler sonography had a higher mean error of 10.3% (P <.001, unpaired t‐test). Cine phase‐contrast MR imaging provides accurate estimates of volume blood flow for waveforms and flow ranges expected in peripheral arteries.

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