Synopsis

There are many different types of artefacts in MRI – way too many to cover sensibly in a single educational talk – this presentation will therefore focus on a sub-set of artefacts and provide an explanation of the origin of each and introduce ways they can be ameliorated. Example artefact images will be shown, along with the results of simulations that allow the effects of varying imaging parameters on the artefact properties to be probed. We will consider artefacts resulting from: (i) errors in signal acquisition or processing; (ii) system hardware imperfections and (iii) the human subject of the scanning.