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Effects of Arterial Compliance and Non-Newtonian Rheology on Correlations Between Intimal Thickness and Wall Shear
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A minimally diseased (mean intimal thickness = 56 μm) human aortic bifurcation was replicated in rigid and compliant flow-through casts. Both casts were perfused with physiological flow waves ...
Fabrication of Vascular Replicas From Magnetic Resonance Images
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Image processing and Computer Numerical Controlled (CNC) machining techniques have been used to prepare a larger-than-life investment cast of an aortic bifurcation from magnetic resonance images ...
Hemodynamic Measurements in Human Arterial Casts, and Their Correlation With Histology and Luminal Area
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new approach is presented for studying the vascular response to hemodynamic stress. A laser doppler anemometer is used to make velocity measurements very near the walls of human arterial ...
Correlation of Human Arterial Morphology With Hemodynamic Measurements in Arterial Casts
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A realistic pulsatile flow was passed through a cast of the aortic bifurcation of a 63-yr-old male with mild atherosclerosis, and a laser Doppler anemometer was used to measure fluid velocities ...
Comparison of Steady and Pulsatile Flow Near the Ventral and Dorsal Walls of Casts of Human Aortic Bifurcations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Steady and pulsatile flows were passed through casts of human aortic bifurcations and, by means of a laser Doppler anemometer, fluid velocities were measured at selected sites near the ventral ...
Nonquasi-Steady Character of Pulsatile Flow in Human Coronary Arteries
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This experiment was conducted to determine if the pulsatile flow through the proximal portion of the left coronary artery system in man exhibits quasi-steady characteristics. Steady and pulsatile ...
Measurement of Wall Motion and Wall Shear in a Compliant Arterial Cast
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Initial measurements of the time-varying wall shear rate at two sites in a compliant cast of a human aortic bifurcation are presented. The shear rates were derived from flow velocities measured ...
Experimental Investigations of Steady and Pulsatile Laminar Flow in a 90° Branch
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Velocity measurements are reported for steady and unsteady flow in a rectangular cross-section Y-branch of high aspect ratio. Good agreement is found between the experimental results and ...
The Effect of Compliance on Wall Shear in Casts of a Human Aortic Bifurcation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Rigid and compliant casts of a human aortic bifurcation were subjected to physiologically realistic pulsatile fluid flows. At a number of sites near the wall in the approximate median plane ...