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Biomedical Engineering Research Seminar

David A. Steinman

University of Toronto

Abstract

Over the past decade, we have shown that cerebrovascular blood flow dynamics may include high-frequency vortex-shedding, transitional and possibly even turbulent flow, with attendant flow-induced vibrations, consistent with historical clinical literature on intracranial sounds, but at odds with much of the cerebrovascular CFD literature. In this presentation, I will show how high-fidelity CFD and fluid-structure-interaction (FSI) modelling has allowed us to gain insights into cerebrovascular disorders like brain aneurysms and pulsatile tinnitus, and into the still-incompletely-understood mechanisms of intracranial sound production. I will also show how this work has inspired — and has been inspired by — novel strategies for visualizing and sonifying complex fluid dynamics data.

Bio

David A. Steinman, PhD, is a professor of mechanical and biomedical engineering at the University of Toronto. He is recognized as a pioneer in the integration of medical imaging and computational modelling and their use in the study of cardiovascular disease development, diagnosis, and treatment planning. He is the co-founder of the Vascular Modelling ToolKit, and initiated the International Aneurysm CFD Challenge series. Professor Steinman is a Fellow of the American Society of Mechanical Engineers, and is currently an Associate Editor of the Journal of Biomechanics and the Journal of Neurointerventional Surgery.

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