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Abstract #1088

Highly efficient respiratory motion-compensated 3D water/fat late gadolinium enhanced atrial wall imaging

Camila Munoz1, Iain Sim2, Aurelien Bustin1, Radhouene Neji1,3, Karl P Kunze3, Michaela Schmidt4, Mark O’Neill2, Steven E Williams2, Rene M Botnar1, and Claudia Prieto1
1Biomedical Engineering Department, School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom, 2Cardiovascular Imaging Department, School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom, 3MR Research Collaborations, Siemens Healthcare Limited, Frimley, United Kingdom, 4Cardiovascular MR Predevelopment, Siemens Healthcare GmbH, Erlangen, Germany

3D late gadolinium enhanced (LGE) imaging is a promising technique for the non-invasive assessment of atrial fibrosis. In order to minimize respiratory motion, current 3D LGE atrial imaging relies on diaphragmatic navigator gating, leading to time-consuming scans with unpredictable duration. Here we introduce a highly efficient respiratory motion-compensated 3D water/fat IR-prepared LGE atrial imaging protocol with predictable scan time. Preliminary results demonstrate that the proposed approach enables depiction of atrial scar comparable to conventional 3D atrial LGE imaging, but with a significantly shorter scan time of <5 minutes. The proposed approach holds promise for high-resolution atrial wall imaging.

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