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Abstract #1649

A New Fat-suppressed Spin-Echo Imaging Using Hyperbolic-Secant Pulses

Yoojin Lee 1 , Jang Yeon Park 2 , Yeji Han 3 , ChangHyun Oh 3 , and HyunWook Park 3

1 Department of Radiology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States, 2 School of Biomedical Engineering, Konkuk University, Chungju, Korea, 3 Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea

In this study, a new fat-suppressed spin-echo imaging technique using hyperbolic secant (HS) RF pulses for π/2 excitation and π refocusing in a conventional SE sequence is proposed. This technique utilizes the fact that non-linear phase profile across slice created by HS pulses is not compensated in the regions where the frequency offset exists. Phantom and in vivo experiments were performed at 3T to demonstrate this technique.

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