Person:
Oshinski, John N.

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    Use of magnetic resonance imaging to evaluate stenotic flows
    (Georgia Institute of Technology, 1993-05) Oshinski, John N. ; Ku, David N. ; George W. Woodruff School of Mechanical Engineering ; College of Engineering ; Mechanical engineering
  • Item
    Evaluation of the accuracy of magnetic resonance phase velocity encoding in straight tubes and stenoses
    (Georgia Institute of Technology, 1991-05) Oshinski, John N. ; Ku, David N. ; George W. Woodruff School of Mechanical Engineering ; College of Engineering ; Mechanical engineering
  • Item
    Flow Patterns and Wall Shear Stress Distributions at Atherosclerotic-Prone Sites in a Human Left Coronary Artery - An Exploration Using Combined Methods of CT and Computational Fluid Dynamics
    (Georgia Institute of Technology, 2004-09) Jin, Suo ; Yang, Yan ; Oshinski, John N. ; Tannenbaum, Allen R. ; Gruden, James ; Giddens, Don P. ; Wallace H. Coulter Department of Biomedical Engineering ; Emory University. Dept. of Biomedical Engineering ; Emory University. Dept. of Radiology
    Computed tomography (CT) slices are combined with computational fluid dynamics (CFD) to simulate the flow patterns in a human left coronary artery. The vascular model was reconstructed from CT slices scanned from a healthy volunteer in vivo. The spatial resolution of the slices is 0.6 × 0.6 × 0.625 mm so that geometrical details of the local wall surface of the vessel could be considered in the CFD modeling. This level of resolution is needed to investigate the wall shear stress (WSS) distribution, a factor generally recognized as a related to the atherogenesis. The WSS distributions on the main trunk and bifurcation of the left coronary artery of the model in one cardiac cycle are presented, and the results demonstrate that low and oscillating WSS is correlative with clinical observations of the atherosclerotic-prone sites in the left coronary artery.