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Abstract #0162

Addressing a Systematic Vibration Artefact in Diffusion-Weighted MR Images

Daniel Gallichan1, Jan Scholz1, Andreas J. Bartsch2, Timothy E. Behrens1, Matthew D. Robson3, Karla L. Miller1

1FMRIB Centre, University of Oxford, Oxford, Oxon, UK; 2Neuroradiology, University of Wrzburg; 3OCMR, University of Oxford

Diffusion-weighted imaging employs large gradient lobes which are known to cause vibration of the patient table. We identify and characterise an artefact arising from these vibrations. We suggest a method to correct affected data as well as how to choose protocol parameters to avoid the acquisition of affected data.