Sung Suk Oh1, Sungdae Yun1, HyunWook Park1,2
1Department of Electrical Engineering, KAIST, Daejeon, Korea; 2fMRI Laboratory of Brain Research Center, KAIST, Daejeon, Korea
The susceptibility artifact in magnetic resonance (MR) image occurs by the variation in the magnetic field strength around the interface of substances having different magnetic susceptibility. Especially, this artifact has an effect on the signal loss on orbitofrontal and temporal regions of the brain. For the compensation of this artifact, we propose a new RF pulse having bilinear phase, and quadrature phase, which provides nearly constant signal intensity against the magnetic susceptibility.