5128
How to deal with MRI artefacts
Catherine Wangui muchuki1
1Radiology, Kenyatta National Hospital, Nairobi, Kenya
Synopsis
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.
Abstract
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.Acknowledgements
I wish to acknowledge my institution Kenyatta National Hospital for allowing me to collect the data.References
1. Philips clinical application book
2. MRI in practice 4th edition by Catherine Westbrook, Carolyn Kaut Roth
3.MRI masters.com
Proc. Intl. Soc. Mag. Reson. Med. 32 (2024)
5128
DOI: https://doi.org/10.58530/2024/5128