Abstract #0079
Complex-Difference Constrained Reconstruction for Accelerated Phase Contrast Flow Imaging
Aiqi Sun 1 , Bo Zhao 2 , Rui Li 1 , and Chun Yuan 1,3
1
Center for Biomedical Imaging Research,
School of Medicine, Tsinghua University, Beijing, China,
2
Department
of Electrical and Computer Engineering, University of
Illinois at Urbana-Champaign, Urbana, IL, United States,
3
Department
of radiology, University of Washington, WA, United
States
Phase-contrast (PC) cine MRI has been demonstrated as a
promising technique for studying hemodynamics. However,
it remains limited in clinical practice because of its
long scan time. To date, a number of fast imaging
methods have been applied to PC cine MRI, including
kinds of k-t reconstruction algorithms, but most of them
could cause temporal blurring and large deviation in
flow measurements under higher acceleration rate. In
this work, we propose a new complex-difference
constrained reconstruction technique based on low-rank
and sparsity model, and we further integrate it with
ESPIRiT-based parallel imaging reconstruction to achieve
even higher acceleration.
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