Improvement of Signal Inhomogeneity Induced by Radio-frequency Transmit-related Phase Error for Single-step
Hirohito Kan1, Nobuyuki Arai1, Masahiro Takizawa2
1Department of Radiology, Nagoya City University Hospital.
Abstract:
To mitigate the susceptibility inhomogeneity induced by radio-frequency transmit phase error through the whole brain in quantitative susceptibility mapping (QSM) using single-echo gradient echo sequence, we developed a novel single-step QSM reconstruction algorithm and compared it with a previous algorithm in five healthy volunteers. The proposed algorithm had effectively suppressed the susceptibility inhomogeneity through the whole brain and achieved acceptable quality, similar to that of the susceptibility map calculated from a multi-echo gradient echo sequence.
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