Abstract #1539
Compressed Sensing Reconstructed Radial bSSFP with Asymmetric Views for Free-breathing Cardiac Cine MRI
Hasan Ertan Cetingul 1 , Peter Speier 2 , Michaela Schmidt 2 , Qiu Wang 1 , and Mariappan S. Nadar 1
1
Imaging and Computer Vision, Siemens
Corporation, Corporate Technology, Princeton, NJ, United
States,
2
Siemens
AG, Healthcare Sector, Erlangen, Germany
2D unsegmented real-time bSSFP cine MRI is used for
non-invasive assessment of the cardiac function without
breath-hold. bSSFP requires short inter-pulse distance
repetition time (TR) for robustness against B0 field
inhomogeneities and flow. In Cartesian bSSFP the TR is
reduced by partial Fourier in the readout direction,
i.e., the early part of the echo is omitted. We develop
CS reconstructed radial bSSFP with asymmetric views for
free-breathing cardiac cine MRI. This technique can
speed up acquisition and stabilize bSSFP signals by
reducing TR by about 12% with only minor degradation in
image quality compared to the conventional full echo
schemes.
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