Concomitant field effects in MR Elastography

Motivation: To our knowledge, concomitant field effects in MRE have not been investigated yet, which might become of importance when translating MRE to low field MR systems. Goal(s): Propose a framework to investigate concomitant field effects on MRE, in particular Hadamard-encoded 3D MRE at 0.55T. Approach: A 6x6 encoding scheme is proposed to study the effects of concomitant fields on 3D MRE at 0.55T in phantom experiments. Results: Phantom experiments demonstrated that the effects of concomitant fields on 3D Hadamard-encoded MRE at 0.55T are negligible. Impact: A framework to assess concomitant field effects in MRE, in particular Hadamard-encoded 3D MRE at 0.55T in phantom experiments.