Abstract #2637

Synthesis and analysis of low b value Diffusion Weighted Images at 10mT

Seema S Bhat¹, Pavan Poojar^1,2, Marta da Silva Ferreira³, Hanumantharaju M C⁴, Rita G Nunes³, and Sairam Geethanath^5,6

¹Dayananda Sagar Institutes,Bangalore, Bangalore, India, ²Wipro-GE Healthcare, BANGALORE, India, ³Institute for Systems and Robotics /Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal, Lisbon, Portugal, ⁴BMS Institute of Technology and Management, BANGALORE, India, ⁵MIRC, Dayananda Sagar Institutes,Bangalore, BANGALORE, India, ⁶Dept. of Radiology, Columbia University Medical Center, New York, NY, New York, NY, United States

DWI MRI is a well established method for stroke imaging, within the critical operating window of approximately four to six hours. This requires an accessible, portable and cost effective MR solution typically achieved at very low magnetic fields. In this work, simulation of low b value DWI images at 10mT has been performed in comparison with 1.5T. Also, the affect of pulse sequence design parameters has been explored to arrive at a potentially useful DWI acquisition scheme. Future work includes prospective implementations of the sequence on a 10mT scanner and; denoising and reconstruction of low field images using deep learning.

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