Abstract #4597
Dynamic Simultaneous T1 and T2* weighted 3D Dual-Echo Imaging with Compressed Sensing: Potential Advancement to Simultaneous DCE and DSC Imaging
Won-Joon Do 1 , Dong-Wook Lee 1 , Paul Kyu Han 1 , Seung Hong Choi 2 , Jong Chul Ye 1 , and Sung-Hong Park 1
1
Department of Bio and Brain Engineering,
Korean Advanced Institute of Science and Technology,
Daejeon, Korea,
2
Seoul
National University Hospital, Seoul, Korea
We proposed and demonstrated a new approach for
acquiring 3D T1 and T2* weighted images simultaneously
and dynamically using a dual-echo sequence combined with
a compressed sensing (CS) reconstruction, k-t FOCUSS.
The conflicting aspect of T1 and T2* weighting could be
satisfied by using a special K-space sub-sampled
reordering scheme. The implemented CS scheme on the
dual-echo imaging with downsampling factor of 4
efficiently improved temporal resolution of the 3D
dual-echo imaging, confirmed by detection of CSF signal
changes. The technique can potentially be applied for
simultaneous DCE and DSC imaging, which can
significantly improve clinical information and patient
comfort.
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