SUNMONTUEWEDTHUFRISAT
Events for October 16, 2019
-
Medical Imaging Seminar
Wed, Oct 16, 2019 @ 12:00 PM - 01:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Vanessa Landes, University of Southern California
Talk Title: Radiofrequency Pulse Performance for Myocardial ASL
Series: Medical Imaging Seminar Series
Abstract: Coronary artery disease (CAD) is one of the leading causes of death and disability in the United States, accounting for approximately one third of all deaths in individuals over the age of 35. Myocardial perfusion imaging (MPI) is an important tool to diagnose or monitor patients with CAD. Current techniques use ionizing radiation or contrast agents, and are not suitable for routine monitoring or in patients with chronic kidney disease. Myocardial Arterial Spin Labeling is under development as a contrast and radiation free MPI technique. Spatial coverage must be increased and sensitivity to transit delay must be eliminated for clinical adaptation.
This talk will discuss technical improvements in RF pulse performance for myocardial ASL. First, a hardware-free, efficient RF predistortion technique is developed to improve SMS bSSFP imaging for increased spatial coverage of myocardial ASL. Second, a VS pulse is designed using Fourier Velocity encoding techniques and tailored specifically for labeling of coronary blood at 3T to remove transit delay sensitivities of myocardial ASL. With the proposed methods, the development of myocardial ASL approaches clinical reality.
Biography: Vanessa Landes is a Ph.D. candidate working under the supervision of Prof. Krishna Nayak at the Magnetic Resonance Engineering Laboratory. Her research focuses on MR pulse sequence development and RF pulse design for cardiac applications at 3T.
Host: Professor Krishna Nayak
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 132
Audiences: Everyone Is Invited
Contact: Talyia White
-
Center for Cyber-Physical Systems and Internet of Things and Ming Hsieh Institute Seminar
Wed, Oct 16, 2019 @ 02:00 PM - 03:00 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Sayan Mitra , University of Illinois at Urbana-Champaign
Talk Title: Optimal Data Rate Estimation and Model Detection for Safe Autonomy
Series: Center for Cyber-Physical Systems and Internet of Things
Abstract: Building a safe autonomous system will involve connecting a number of perception, monitoring, and decision components over a bandwidth-constrained network. Secondly, many of these components rely heavily on models. Based on these two observations, we motivate a new line of theoretical investigation on data-rate optimal state estimation and model detection. We introduce the notion of estimation entropy that captures the minimal data rate needed for state estimation of dynamical and switched systems. While there are parallels with the information-theoretic counterparts, this notion of estimation bounds the worst-case errors which is often necessary for reasoning about safety. As we believe that computing the estimation entropy of a system exactly will be difficult, we provide upper bounds. We present an algorithm for state estimation over finite bandwidth channels that matches this upper bound. Building on this estimator, we then present an algorithm that can detect the correct model of a system from a set of candidate models. We will conclude with a discussion of switched systems and connections with formal verification.
Biography: Sayan Mitra is a Professor of Electrical and Computer Engineering at the University of Illinois at Urbana-Champaign and an affiliate professor of Computer Science. He is the Associate director of research at the recently formed Center for Autonomy. His research interests lie around formal verification, autonomous systems, safety and privacy in control systems, and distributed computing. He has authored a textbook on verification of cyber-physical systems (to be published by MIT press). His research group has developed several leading tools for verification and synthesis of hybrid systems. He holds a PhD in Electrical Engineering and Computer Science from MIT, MSc from the Indian Institute of Science, and a Bachelor's Degree in Electrical Engineering from Jadavpur University. He was a postdoctoral fellow at Caltech (2008), and has held visiting faculty positions at Oxford University, TU Vienna, and Kirtland Air Force Research Laboratory. Sayan received the National Science Foundation's CAREER Award, AFOSR Young Investigator Research Program Award, IEEE-HKN C. Holmes MacDonald Outstanding Teaching Award, a RiSE Fellowship, a Seibel Research Grant, and several best paper awards.
Host: Jyotirmoy Vinay Deshmukh
Location: Hughes Aircraft Electrical Engineering Center (EEB) - EEB 132
Audiences: Everyone Is Invited
Contact: Talyia White
