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Abstract #0002

Fast Spin Echo Approach for Accelerated B1-gradient Based MRI

Taylor Froelich1, Lance DelaBarre1, Paul Wang2, Jerahmie Radder1, Efrain Torres2, and Michael Garwood2
1Center for Magnetic Resonance Research & Department of Radiology, University of Minnesota, Minneapolis, MN, United States, 2Center for Magnetic Resonance Research & Department of Radiology; Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, United States

Synopsis

Keywords: YIA, Gradients

Recent efforts to expand access to MRI have focused on low-cost, portable MRI systems that eliminate pulsed B0 gradients in favor of radio-frequency imaging techniques. In this work we present a new multi-echo version of FREE (Frequency-modulated Rabi Encoded Echoes) that utilizes nonlinear B1+ gradients to perform spatial encoding. This new technique leverages the acceleration of conventional FSE approaches and nonlinear gradients to eliminate the need for conventional B0 gradients while also achieving very high spatial resolution.

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Keywords