Abstract #0913

MT imaging at 0.55T with GRE and bSSFP

David Leitão¹, Daniel West¹, Raphael Tomi-Tricot^2,3, Jo Hajnal^1,3, Tobias C Wood⁴, and Shaihan Malik^1,3

¹Biomedical Engineering & Imaging Sciences, King's College London, London, United Kingdom, ²MR Research Collaborations, Siemens Healthcare, Frimley, United Kingdom, ³Centre for the Developing Brain, King's College London, London, United Kingdom, ⁴Department of Neuroimaging, King's College London, London, United Kingdom

Synopsis

Keywords: Magnetization transfer, Magnetization transfer, Low-Field MRIWe used multiband pulses to obtain Magnetization Transfer (MT) weighted images at 0.55T in a time-efficient manner. White Matter (WM)/Grey Matter (GM) contrast is compared across several flip-angles for both GRE and bSSFP sequences. GRE showed larger MTR WM/GM difference but after accounting for signal-to-noise ratio bSSFP had 50% better contrast-to-noise ratio.

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