Abstract #3891
Evaluating both Normal and Ectopic Cardiac Cycles in Patients with Arrhythmias Using Free-Breathing Compressed Sensing MRI with Physiological Motion Synchronization
Li Feng 1 , Leon Axel 1 , Darragh Halpenny 1 , Larry Latson 1 , Jian Xu 2 , Daniel K Sodickson 1 , and Ricardo Otazo 1
1
Bernard and Irene Schwartz Center for
Biomedical Imaging, Department of Radiology, New York
University, School of Medicine, New York, New York,
United States,
2
Siemens
Medical Solutions, New York, New York, United States
Evaluation of myocardial function using MRI is
challenging in patients with arrhythmias, due to the
difficulty of synchronizing disparate cardiac cycles. In
order to achieve successful reconstruction, ectopic
cardiac cycles are usually detected and discarded, which
may potentially lose some clinically useful information.
In this work, we propose to acquire data continuously
using golden-angle radial trajectories in free-breathing
and detect cardiac cycles with differing lengths,
followed by reconstruction with synchronized but
separated cardiac and respiratory dimensions, including
separate normal and ectopic cardiac cycles, which
provides additional information for potential clinical
use. The method was compared to the conventional
breath-hold approach.
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