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Abstract #2995

Investigation and Reduction of the Effects of Gibbs Ringing in SSFP Phase Based MR-EPT

Gokhan Ariturk1, Necip Gurler1, and Yusuf Ziya Ider1

1Electrical and Electronics Engineering, Bilkent University, Ankara, Turkey

Phase based MR-EPT methods mainly make use of the balanced SSFP since it is a fast MRI sequence. As SSFP sequence yields high magnitude contrast variations, Gibbs artifacts occur at tissue boundaries. This artifact manifests itself as phase spikes and oscillations at and near tissue boundaries respectively. The commonly used image enhancement methods, for reducing the ringing artifact, mainly focus on the magnitude images, leaving out the phase images. Throughout simulation and phantom experiment results, we investigate and propose a method for the reduction of the effect of ringing artifact on phase based MR-EPT studies.

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