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Motion artifact correction in MRI using generalized projections

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3 Author(s)
Hedley, M. ; Sch. of Electr. Eng., Sydney Univ., NSW, Australia ; Hong Yan ; Rosenfeld, Dov

An algorithm that suppresses translational motion artifacts in magnetic resonance imaging (MRI) by using post processing on a standard spin-warp image is presented. It is shown that translational motion causes an additional phase factor in the detected signal and that this phase error can be removed using an iterative algorithm of generalized projections. The method has been tested using computer simulations and it successfully removed most of the artifact. The algorithm converges even in the presence of severe noise

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Medical Imaging, IEEE Transactions on  (Volume:10 ,  Issue: 1 )