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• W1969922016 abstract "A recent development in phase-contrast magnetic resonance imaging (cine PC-MRI) allows the detailed measurement of the blood flow in humans. The objectives of this study are twofold: to discuss the utility of clinical two-dimensional (2D) cine PC-MRI as a practical tool for analyzing hemodynamics in the aorta and left ventricle; 2) to provide flow information at those places as references for computational fluid dynamics studies. Using 2D cine PC-MRI, we mapped velocity profiles at various cross sections of the aorta and left ventricle. The results illustrated the main flow events in the left ventricle during the cardiac cycle, such as ventricular ejection and suction, while the secondary flows were less clear. The velocity profile at the entrance of the ascending aorta appeared to be slightly skewed posteriorly in early systole, but the flow in the central zone of the section was rapid. The estimated stroke volume, peak Reynolds numbers, and Womersley numbers were within the normal physiological range. A sequence of secondary flow images from the plane of the aortic valve to the descending aorta revealed the evolution of a helical flow within the aorta. Flows entering the aortic branches were captured well. Those results demonstrate that clinical 2D cine PC-MRI is a practical adjunct for analyzing blood flow in vivo and would be useful as references to check validity of flow dynamics obtained by computer simulations." @default.
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• W1969922016 date "2007-01-01" @default.
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• W1969922016 title "Measurement of Blood Flow in the Left Ventricle and Aorta Using Clinical 2D Cine Phase-Contrast Magnetic Resonance Imaging" @default.
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• W1969922016 doi "https://doi.org/10.1299/jbse.2.46" @default.
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