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Abstract #1254

Compressed-sensing 1mm-isotropic 3D Whole-Heart Water/Fat Coronary MR Angiography in ~10 minutes

Camila Munoz1, Christoph Forman2, Radhouene Neji1,3, Karl P Kunze3, Michaela Schmidt2, René M Botnar1, and Claudia Prieto1

1School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom, 2Cardiovascular MR Predevelopment, Siemens Healthcare GmbH, Erlangen, Germany, 3MR Research Collaborations, Siemens Healthcare GmbH, Frimley, United Kingdom

Prolonged acquisition time and robust fat suppression remain a challenge for coronary MR angiography. Here we present a highly efficient undersampled whole-heart water/fat CMRA acquisition and reconstruction approach, for improved fat suppression at 3Twithin an overall short scan time. The proposed approach is integrated with 2D translational motion correction, to enable 100% respiratory scan efficiency, which in combination with an undersampled acquisition trajectory allows the acquisition of high-resolution water/fat datasets in ~10 minutes. The feasibility of the proposed approach was tested in healthy subjects, and results show improved depiction of the coronary arteries compared to conventional fat suppression.

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