How to deal with MRI artefacts

Motivation: Artefacts are features that appear in an image not present in the original object.The study was informed by the various artefacts encountered during scanning. Goal(s): Different artefacts occured during scanning affecting the diagnostic quality ,classified as patient related, signal processing and hardware related. Approach: Information was collected on patients undergoing scanning on 3T Philip ingenia machine recording all artefacts. The consent form was used as a measure of accuracy of patient information. Results: Artefacts noted were motion artefacts, metallic and orthopaedic. Various methods were applied of elimination including field of view, spin echo sequences, short echo time and use of oversampling techniques. Impact: knowledge of different types of artefacts and their origin was necessary to eliminate them to reduce their negative influence on MR images by adjusting acquisition parameters.