Eun Ju Cha1, Kyong Hwan Jin1, Dong-Wook Lee1, Eung Yeop Kim2, Seung-Hong Choi3, and Jong Chul Ye1
1KAIST, Daegeon, Korea, Republic of, 2Gacheon Unversity Gil Medical Center, Incheon, Korea, Republic of, 3Seoul National University Hospital, Seoul, Korea, Republic of
In dynamic
contrast enhanced (DCE) MRI, temporal and spatial resolution can be improved by
time-resolved angiography with interleaved stochastic trajectories (TWIST). However,
due to view sharing, the temporal resolution of TWIST is not a true one. To overcome
this limitation, we employ recently proposed annihilating filter-based low rank
Hankel matrix approach (ALOHA) that interpolates the missing k-space data by
performing low-rank matrix completion of weighted Hankel matrix. In vivo
results showed considerably better temporal resolution than standard TWIST
reconstruction.
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