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Abstract #3254

Ungated free-breathing late gadolinium enhancement imaging with a radial simultaneous multi-slice acquisition

Ganesh Adluru1, Jason Mendes1, Brent Wilson2, and Edward DiBella1

1Radiology and Imaging Sciences, University of Utah, Salt lake city, UT, United States, 2Cardiology, University of Utah, Salt Lake City, UT, United States

Late Gadolinium Enhancement imaging is the gold standard for identifying infarcted myocardium. Existing data acquisition methods rely on good ECG-gating signal and breathholding to acquire images in quiescent diastolic cardiac phase. However, in patients with arrhythmias and when imaging at higher field strengths, R-R interval is inconsistent and a good ECG signal can be challenging. This can lead to increased acquisition time and inconsistent recovery of longitudinal magnetization affecting signal-to-noise ratio and optimal myocardial nulling. Here we propose an ungated free-breathing scheme that acquires multiple slices at the same time with consistent nulling of healthy myocardium at systole and diastole.

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