Abstract #3892
Accelerated Cine DENSE using Variable Density Spirals and Compressed Sensing with Parallel Imaging
Xiao Chen 1 , Yang Yang 1 , Michael Salerno 2,3 , Craig H. Meyer 1 , and Frederick H. Epstein 1
1
Biomedical Engineering, University of
Virginia, Charlottesville, VA, United States,
2
Radiology,
University of Virginia, Charlottesville, VA, United
States,
3
Cardiology, University of Virginia,
Charlottesville, Virginia, United States
Cine DENSE (Displacement Encoding with Stimulated
Echoes) provides accurate and high-resolution
displacement and strain imaging of the heart; however,
image acquisition times are relatively long and, due to
properties inherent to stimulated echoes,
signal-to-noise ratio (SNR) is relatively low. In this
study, using variable-density spiral acquisitions with
golden angle rotations and BLOSM-SENSE reconstruction,
accelerated cine DENSE images with two-dimensional
in-plane displacement encoding can be acquired in a
single breathhold, as short as 8 heartbeats. This
represents a significant improvement over prior
protocols that used two 14-heartbeats breathholds to
acquire equivalent datasets.
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