MR Elastography (MRE) requires substantial data processing involving phase image reconstruction, wave enhancement and inverse problem solving. The objective of this study is to propose an alternative reconstruction method based on direct k-space data processing, particularly adapted to applications requiring fast MRE measurements such as the monitoring of elasticity changes. Elastograms are directly reconstructed from raw MR data without prior phase image reconstruction, circumventing thereby the delicate step of phase unwrapping. The k-space MRE method shows promising results by providing elasticity values similar to the ones obtained with conventional MRE in phantoms and in vivo in porcine liver.
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