Quantification of blood flow in the carotid arteries: comparison of Doppler ultrasound and three different phase-contrast magnetic resonance imaging sequences

Investigative Radiology
J SeitzS Feuerbach

Abstract

To compare blood flow velocities in the carotid arteries measured with three different magnetic resonance (MR) phase-contrast imaging techniques and with percutaneous Doppler ultrasound. Fourteen healthy male volunteers with a mean age of 33 +/- 3.8 years were studied. Ultrasound and MR phase velocity mapping of both common carotid arteries (n = 28) was performed within 5 hours. A two-dimensional fast low-angle shot sequence with retrospective cardiac gating, a sequence with prospective cardiac triggering, and a breath-hold sequence with prospective cardiac triggering were used. Resistance indexes and pulsatility indexes were calculated for all modalities. The comparison of flow velocities obtained with ultrasound and the different MR techniques led to a moderate correlation of the retrospective gated and prospective triggered MR techniques (eg, r = 0.73 for maximum systolic velocity). The worst correlation was found between the breath-hold technique and retrospective cardiac gating (eg, r = 0.004 for pulsatility index). There was a weak correlation of all three MR sequences compared with ultrasound (r = 0.19-0.60) A moderate correlation was found between velocities and indexes measured with the prospective cardiac-triggered ph...Continue Reading

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Citations

Oct 29, 2013·Annals of Biomedical Engineering·Patrick M McGahAlberto Aliseda
May 12, 2012·AJNR. American Journal of Neuroradiology·J J SchneidersC B Majoie
May 13, 2006·Pediatric Research·Jay R Hove
Dec 20, 2008·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·A HarloffM Markl
Jul 16, 2013·Current Opinion in Cardiology·Juan C Lopez-Mattei, Dipan J Shah
Mar 24, 2009·Journal of Magnetic Resonance Imaging : JMRI·Andreas StadlbauerErich Salomonowitz

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