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Abstract #4214

3D T2 Mapping of Human Brain with High Accuracy by 3D Turbo-Flash Imaging Prepared by Multiecho Adiabatic Spin Echo

Hidehiro Watanabe1, Nobuhiro Takaya1, Fumiyuki Mitsumori1

1Center for Environmental Measurement and Analysis, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan

3D MASE method for whole brain T2 mapping with high accuracy was developed at 4.7T. This has a feature of accurate 3D T2 mapping by a precise slice selection with a pair of adiabatic pulses for the refocusing slice selection. After magnetization decayed purely by T2 is generated by a multi-pulse adiabatic spin echo sequence, it is flipped back to the longitudinal magnetization by a flipback adiabatic pulse. Then, signal is accumulated by the 3D Turbo-Flash imaging. In human brain measurements, T2 values were in good agreement with those by the conventional 2D MASE method.