Vector analysis of the wall shear rate at the human aortoiliac bifurcation using cine MR velocity mapping

AJR. American Journal of Roentgenology
Taeko TsujiMasao Omata

Abstract

Small or oscillatory wall shear stress accelerates atherosclerosis. MR velocity mapping is feasible for vector analysis of wall shear rate (a spatial gradient of blood flow velocity at the vessel wall) in humans. A relationship between anatomic variations at the aortoiliac bifurcation and characteristics of wall shear rate was evaluated. To obtain two components of wall shear rate vectors, an axial component along the vessel axis and a nonaxial component perpendicular to the former at the inner and outer walls of the common iliac arteries just distal to the aortoiliac bifurcation, we performed cine MR velocity mapping with three orthogonal velocity-encoded directions in seven volunteers. The peak axial component at the outer wall (120.6 +/- 37.2 sec(-1)) was smaller than that at the inner wall (196.0 +/- 53.7 sec(-1)) (p < 0.01). Oscillation described by a time integral of the axial component in recessive blood flow direction over integrals in dominant and recessive directions at the outer wall was greater (0.24 +/- 0.11) than that at the inner wall (0.15 +/- 0.08) (p < 0.01). The intersecting angle between the extrapolation of the aortic axis and the direction of the axis of the common iliac artery correlated positively with t...Continue Reading

References

Feb 16, 1971·Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character·C G CaroR C Schroter
Sep 13, 1969·Nature·C G CaroR C Schroter
Apr 1, 1984·The American Journal of Cardiology·H N SabbahP D Stein
Nov 1, 1995·Journal of Magnetic Resonance Imaging : JMRI·J N OshinskiR I Pettigrew
Mar 1, 1997·European Journal of Vascular and Endovascular Surgery : the Official Journal of the European Society for Vascular Surgery·S OyreW P Paaske
Nov 14, 1997·Arteriosclerosis, Thrombosis, and Vascular Biology·E J MattssonA W Clowes
May 23, 1998·Arteriosclerosis, Thrombosis, and Vascular Biology·O Traub, B C Berk
Nov 3, 1998·AJR. American Journal of Roentgenology·J SuzukiT Toyo-oka
Apr 5, 2000·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Q LongT M Griffith

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Citations

Sep 13, 2002·NMR in Biomedicine
Mar 6, 2012·Journal of Biomechanics·Chong WangMartin Alexander Schwartz
Feb 22, 2011·European Journal of Radiology·Alex FrydrychowiczPatrick A Turski
Nov 28, 2015·Biomedical Engineering Online·Vinicius C RispoliJoao L A Carvalho
May 29, 2003·Journal of Interventional Cardiology·Jolanda J WentzelZahi A Fayad
Jun 27, 2009·Journal of Magnetic Resonance Imaging : JMRI·Alex FrydrychowiczMichael Markl
Oct 29, 2008·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·A F StalderM Markl
Nov 3, 2011·Cytometry. Part a : the Journal of the International Society for Analytical Cytology·Gordon J ZwartzLarry A Sklar
Apr 6, 2004·Magnetic Resonance Imaging·Sheng Ping WuErik Morre Pedersen
Apr 19, 2005·Journal of Magnetic Resonance Imaging : JMRI·Paul E SummersMaria Drangova
Jul 3, 2013·Arteriosclerosis, Thrombosis, and Vascular Biology·Chong WangMartin Alexander Schwartz
Oct 31, 2007·Journal of Magnetic Resonance Imaging : JMRI·Thomas A HopeRobert J Herfkens
Apr 20, 2004·Journal of Computer Assisted Tomography·Sadayuki MurayamaGenki Adachi
Oct 4, 2020·Annals of the New York Academy of Sciences·Karim Zouaoui BoudjeltiaAlain Van Meerhaeghe

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