Abstract #2580

Compensation of the Susceptibility Artifact in Temporal and Orbitofrontal Region in Brain Using the Flat RF Pulse

Sung Suk Oh¹, Sungdae Yun¹, HyunWook Park^1,2

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.