Session 20: Sensors
Printed and Flexible MRI Receive Coils
Thursday, June 22, 2017
9:05 AM - 9:25 AM
MRI data acquisition is inherently slow and signal-to-noise (SNR) starved. This limits the spatial resolution, diagnostic image quality, and typically results in long acquisition times that are prone to motion artifacts. Our approach uses printing for the design and fabrication of MRI receive coils. Our method addresses the imaging limitations by enabling highly flexible, lightweight devices that conform to the human body, much like bespoke garments. We have performed a detailed analysis of the materials properties and the performance of the printed components when applied to MRI. We have shown that our printed coils exhibit excellent image quality, comparable to conventional made of state-of-the-art non-printed components. Our coils yield better signal-to-noise ratio (SNR), in realistic clinical scenarios when conventional coils could often be displaced more than 18 mm away from the body. We have fabricated prototype printed arrays that are incorporated within infant blankets for in vivo studies. Our work represents the first fully functional, fully printed flexible MRI coils for 1.5T and 3T clinical scanners. I will discuss materials needs, printing processes and results from preliminary clinical studies.
Dr. Ana Claudia Arias is an Associate Professor at the Electrical Engineering and Computer Sciences Department at the University of California in Berkeley and a faculty director at the Berkeley Wireless Research Center (BWRC). Prior to joining the University of California she was the head of the Printed Electronic Devices Area and a Member of Research Staff at PARC, a Xerox Company, Palo Alto, CA. She went to PARC from Plastic Logic in Cambridge, UK where she led the semiconductor group. She received her PhD on semiconducting polymer blends for photovoltaic devices from the Physics Department at the University of Cambridge, UK. Prior to that, she received her master and bachelor degrees in Physics from the Federal University of Paraná in Curitiba, Brazil. Her research focuses on devices based on solution processed materials and applications development for flexible sensors and electronic systems. Ana Claudia is the chair of ThinFilm Electronics Technical Advisory Council and she is an author of over 100 peer-reviewed publications and issued patents.
Ana Claudia Arias
University of California Berkeley