Abstract #2400
Comparison of K-t SPIRiT and K-t GRAPPA for Accelerating Cardiac DCE and CINE MRI
Dan Zhu 1 , Feng Huang 2 , Feiyu Chen 1 , Haikun Qi 1 , Kui Ying 3 , Chun Yuan 1 , and Huijun Chen 1
1
Biomedical Engineering, Tsinghua University,
Beijing, Beijing, China,
2
Philips
Healthcare, Florida, United States,
3
Engineering
Physics, Tsinghua University, Beijing, China
We compared the efficiency of k-t GRAPPA and k-t SPIRiT
on cardiac DCE and CINE. By comparing the RMSEs and the
intensity evolutions of DCE, as well as the RMSEs of
CINE, we demonstrated that cardiac images reconstructed
by both approaches from highly accelerated datasets are
quite similar to the fully-sampled reference. However,
k-t GRAPPA has lower RMSE and less computational cost,
thus it is preferred to accelerate cardiac DCE and CINE
imaging. Nevertheless, k-t SPIRiT could also be used
when k-t GRAPPA is impossible such as reconstruction of
randomly sampled k-space.
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