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Abstract #4520

3D Saturation Recovery Imaging for Free Breathing Myocardial T1 Mapping

Markus Henningsson1, Rene M. Botnar1, Tobias Voigt2

1Division of Imaging Sciences and Biomedical Engineering, King's College London, London, United Kingdom; 2Clinical Research Europe, Philips Research, London, United Kingdom

2D SAturation-recovery single SHot Acquisition (SASHA) has recently been proposed to provide more accurate myocardial T1 mapping. In this work we extend the 2D SASHA sequence to 3D and enable free breathing data acquisition by introducing respiratory navigation. The proposed sequence is compared to breath held 2D SASHA and 2D Modified Look-Locker Inversion recovery (MOLLI) in a T1 phantom and 7 healthy volunteers. Free breathing 3D SASHA provides T1 values in excellent agreement with 2D SASHA in vivo and in the phantom experiments.