Abstract #3928
Rapid Real-Time Cardiac MRI Exploiting Synchronized Cardio-Respiratory Sparsity
Li Feng 1 , Leon Axel 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
A novel approach for cardiac MRI reconstruction is
proposed, which can overcome some limitations in
conventional technique and provide new kinds of
functional information. Specifically, we acquire cardiac
data continuously using golden-angle radial trajectories
and detect both cardiac and respiratory signals from the
data itself. The data can be retrospectively sorted
during the image reconstruction into an expanded set of
images, spanning different phases of both cardiac and
respiratory cycles. The increased dimensionality enables
high quality free breathing imaging using compressed
sensing and allows investigation of the interactions
between cardiac and respiratory cycles in their effects
on cardiac function.
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