Abstract #3794
Improved Image Quality of Time Resolved Contrast Enhanced MRA using Compressed Sensing, Parallel Imaging and Singular Value Threshold
Yijing Wu 1 , Kevin M Johnson 1 , Patrick A Turski 2 , Kai Niu 1 , YinSheng Li 1 , GuangHong Chen 1 , and Chuck A Mistretta 1
1
Medical Physics, University of Wisconsin,
Madison, WI, United States,
2
Radiology,
University of Wisconsin, Madison, WI, United States
Time-resolved 3D contrast-enhanced MR angiography (TR
CE-MRA) often requires highly accelerated image
acquisition to achieve clinically desired temporal and
spatial resolutions. Combination of VIPR acquisition
with improved multi-channel coils and advanced
reconstruction techniques such as Parallel Imaging (PI)
and Compressed Sensing (CS), offers substantially
greater acceleration than past methods. However, image
quality is restricted by poor SNR due to the limited
amount of data used for reconstruction. In this work, we
explore the temporal similarity of TR CE-MRA to further
improve the SNR and image quality.
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