Synopsis

Keywords: Image acquisition: Artefacts, Physics & Engineering: Physics, Physics & Engineering: Hardware

This talk will explain the source of some common artefacts in MRI assuming and will be aimed at clinicians and technologists but may also provide a useful overview for physicists.It will consider how artefacts can be overcome or corrected post acquisition in some cases, and it will mention how the artefact processes link to useful aspects of MRI where relevant. It will start by considering the most common sources of artefacts in standard MRI and will then go onto consider some more interesting artefacts that are hopefully seen less frequently.

This talk will explain the source of some common artefacts in MRI assuming and will be aimed at clinicians and technologists but may also provide a useful overview for physicists.
It will consider how artefacts can be overcome or corrected post acquisition in some cases, and it will mention how the artefact processes link to useful aspects of MRI where relevant.
It will start by considering the most common sources of artefacts in standard MRI and will then go onto consider some more interesting artefacts that are hopefully seen less frequently.
The following sources of error will be considered

• RF noise
• Bo inhomogeneity
• B1 inhomogeneity
• Gradient non linearity
• Receive inhomogeneity
• Encoding artefacts including parallel imaging artefacts
• Motion

Acknowledgements

No acknowledgement found.

References

No reference found.