Abstract #0060

A 2D multi-shot inversion recovery EPI (MS-IR-EPI) sequence for high spatial resolution T1-mapping at 7T

Rosa Sanchez Panchuelo¹, Robert Turner^1,2,3, Olivier Mougin¹, and Susan Francis¹

¹Sir Peter Mansfield Imaging Centre, University of Nottingham, Nottingham, United Kingdom, ²Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany, ³University of Amsterdam, Amsterdam, Netherlands

The present study uses an efficient 2D, multi-shot, inversion-recovery EPI (MS-IR-EPI) acquisition that combines separately excited k-space segments after each inversion pulse together with steps in slice ordering to generate T₁-maps with high SNR per unit time. We show that although the inversion times systematically vary across slices, consistent T1-maps can be generated across the whole brain. Such T₁-maps provide high spatial resolution and SNR, with little image distortion and can be collected in a short acquisition time.

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