Ultrafast Ultrasound Imaging: Pushing the Boundaries of Functional Imaging and Shear Wave Elastography

Abstract: Ultrasound technology is advancing rapidly with new ultrafast imaging techniques that are now being used in areas previously restricted to optics and magnetic resonance imaging. In this presentation, I will discuss how this new technology enables us to acquire ultrasound images at ultra-high frame rates of up to 10,000 frames per second. I will also address some of the limitations of this technique, such as high side-lobe levels. To minimize this problem, my team has developed effective strategies, including sparse array imaging with Hadamard encoding. Furthermore, I will highlight the usefulness of ultrasound in shear wave elastography. This technique uses ultrafast ultrasound imaging to track the propagation of shear waves. Shear wave elastography measures the spatial variation of mechanical properties within soft tissues. My team has used it over the last five years to assess treatment response in pancreatic and colorectal cancer. In addition, I will discuss our efforts in using ultrafast imaging to understand the human visual system.

Bio: Marvin Doyley is the Wilson Professor of Imaging and Chair of the Department of Electrical and Computer Engineering at the University of Rochester, with joint appointments in Biomedical Engineering and Imaging Sciences (Radiology). He received his PhD in biophysics from the University of London Imperial College in 2000 and completed his post-doctoral training at Erasmus University and Dartmouth College. His research focuses on non-invasive imaging techniques for diagnosing pancreatic and colorectal cancer and understanding brain function. He is a fellow of AIMBE, AIUM, IEEE, and AAIA. He also serves on the editorial board of IEEE Transaction on Ultrasonics, Ferroelectric, and Frequency Control,SPIE Journal of Medical Imaging, Physics in Medicine and Biology, and Nature Scientific Reports.