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.