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Abstract #0615

Human Cardiac T1 Measured At 7 Tesla

Christopher Thomas Rodgers1,2, Stefan Piechnik1, Lance DelaBarre2, Pierre-Francois Van de Moortele2, Carl Snyder2, Stefan Neubauer1, Matthew D. Robson1, J. Thomas Vaughan2

1University of Oxford, Oxford, United Kingdom; 2University of Minnesota, Minneapolis, MN, USA

Cardiac MRI at 7T is an emerging field. So far, volume and function have been measured. Our aim here is to extend the repertoire of 7T cardiac MRI to inversion recovery experiments. We produce an inversion pulse in the heart and use it to measure myocardial T1 at 7T with a modified version of the ShMOLLI Look-Locker inversion recovery experiment. Using a 10ms HS8 adiabatic inversion pulse with peak power 12.8kW, and FLASH imaging we find T1 values of 1405ms (50) at 7T compared to 980ms at 1.5T, and 1198ms at 3T. We discuss the remaining limitations at 7T.