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Abstract #1378

Self-Navigated 3D Late Gadolinium Enhancement Imaging of the Left Atrium

Ganesh Adluru1, Liyong Chen1, Seong-Eun Kim1, Eugene Kholmovski1, Nassir Marrouche2, Edward V. R. DiBella1

1Radiology, University of Utah, Salt Lake City, UT, United States; 2Internal Medicine, University of Utah, Salt Lake City, UT, United States

Late Gadolinium Enhancement imaging of the left atrium is evolving as a valuable tool in the treatment and management of atrial fibrillation using radio-frequency ablation. Current segmented Cartesian acquisition scheme with a respiratory navigator based on the diaphragm position is limited in achieving consistent image quality. Here we explore an alternative self-navigated hybrid radial scheme that can identify motion and can offer improved image quality efficiently. The method is based on a more direct measurement of motion across different segments in 3D k-space and then using compressed sensing reconstruction to further improve the image quality. Results from patient studies show the feasibility of promising method.