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Abstract #2171

T2-weighted 4D-MRI with combined phase and amplitude sorting

Yilin Liu 1 , Zheng Chang 2 , Brian Czito 2 , Mustafa Bashir 2 , Fang-Fang Yin 2 , and Jing Cai 2

1 Medical Physics, Duke University, Durham, NC, United States, 2 Duke University, NC, United States

In this study, we demonstrated the feasibility of a novel retrospective T2-W 4D-MRI phase and amplitude hybrid sorting method based on HASTE/SSFSE sequence. A result-driven sorting strategy was induced in this technique. The T2-W 4D-MRI technique can be applied on liver, pancreas and many other abdominal regions to exhibit the motion of tumors or critical organs. To validate our technique, 4D-MRI acquisition and reconstruction were tested on a 4D Digital Extended Cardiac-Torso (XCAT) human phantom. 5 healthy volunteers were involved in a human study for this technique. Future evaluation on patients is desired.

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