Time-Resolved Ultrasound Mapping of Wall Shear Stress and Flow Turbulence for Next-Generation Cardiovascular Diagnostics
Alfred C. H. Yu, PhD, Professor
Fellow of AIUM and EIC
Editor in Chief of IEEE TUFFC
University of Waterloo, Canada
ABSTRACT
Although ultrasound imaging has been widely used clinically, the current technology is known to have systemic limitations. Specifically, the use of ultrasound in measuring blood flow is well acknowledged to lack visual intuitiveness and is often erroneous. New technologies are needed to more effectively diagnose a variety of medical problems that the aging population is prone to, such as atherosclerosis. Extending beyond our recent advances in ultrasound vector flow imaging technology, this presentation will present the design of a new quantitative imaging framework for wall shear stress mapping. We will also discuss Doppler ultrasound bandwidth imaging, a new tool that we have devised to track flow turbulence. With these imaging innovations, it becomes possible to track complex cardiovascular flow phenomena and, in turn, derive hemodynamic biomarkers that are important to the monitoring of atherosclerosis and cardiac anomalies.
BIOSKETCH
Alfred Yu is Assistant Vice-President (Research and International) and Professor of Biomedical Engineering at the University of Waterloo, Canada. He leads the NSERC Collaborative Research Program on "Next-Generation Innovations in Ultrasonics" in Canada. Alfred has a long-standing research interest in ultrasound imaging and therapeutics. He is a Fellow of AIUM and EIC. His research has been endorsed by many prestigious career prizes, including the NSERC Steacie Memorial Fellowship, the ISTU Frederic Lizzi Award, the IEEE Ultrasonics Early Career Investigator Award, the Ontario Early Researcher Award, and various best paper awards. He is now the Editor-in-Chief of the IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, the Program Chair of 2023 IEEE Ultrasonics Symposium, and a Community Leader of the AIUM Basic Science and Instrumentation Group. He has previously chaired the Medical Ultrasound Group of IEEE Ultrasonics Symposium and has served as an Associate Editor of Ultrasound in Medicine and Biology.
Time: 10:00-11:00, Sept 18, 2023 (Monday)
Location: Room B202, Medical Sciences Building, Tsinghua University
Tencent Meeting: 493-266-891 (Password: 202918)
Host: Jianwen Luo, PhD, Professor of Biomedical Engineering, Tsinghua University
