Mon, Jun 17, 2019 @ 05:15 PM - 06:30 PM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Frank Ong , Stanford University
Talk Title: Extreme MRI: Reconstructing Hundred-Gigabyte Volumetric Dynamic MRI from Non-Gated Acquisitions
Series: Medical Imaging Seminar Series
Abstract: In this talk, I will present techniques to reconstruct 3D dynamic MRI of ~100 GBs from continuous non-gated acquisitions. The problem considered is vastly undetermined and demanding of computation and memory. I will introduce a multi scale low rank matrix model to compactly represent dynamic image sequence. This enables compressed storage, which in combination with a stochastic optimization approach, renders the reconstruction of 100s of GBs of images feasible. The proposed method is applied to dynamic contrast enhanced MRI and free breathing lung MRI, with reconstruction resolution of near millimeter spatially, and sub-second temporally. The attached animated gif shows a 3D rendered result from this talk.
(Joint work with Xucheng Zhu, Joseph Cheng, Peder Larson, Shreyas Vasanawala, and Michael Lustig)
Biography: Frank Ong is a post-doctoral researcher at Stanford University, working with Prof. Shreyas Vasanawala and Prof. John Pauly. His research focuses on computational imaging methods in medical imaging, particularly in MRI. He received his PhD degree from UC Berkeley in Fall 2018 with Prof. Michael Lustig.
Audiences: Everyone Is Invited
Contact: Talyia White