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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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