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Magnetic Resonance Materials in Physics, Biology and Medicine

Erschienen in:

01.02.2013 | Short Communication

Image artifacts from MR-based attenuation correction in clinical, whole-body PET/MRI

verfasst von: Sune H. Keller, Søren Holm, Adam E. Hansen, Bernhard Sattler, Flemming Andersen, Thomas L. Klausen, Liselotte Højgaard, Andreas Kjær, Thomas Beyer

Erschienen in: Magnetic Resonance Materials in Physics, Biology and Medicine | Ausgabe 1/2013

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Abstract

Purpose

Integrated whole-body PET/MRI tomographs have become available. PET/MR imaging has the potential to supplement, or even replace combined PET/CT imaging in selected clinical indications. However, this is true only if methodological pitfalls and image artifacts arising from novel MR-based attenuation correction (MR-AC) are fully understood.

Results

Here we present PET/MR image artifacts following routine MR-AC, as most frequently observed in clinical operations of an integrated whole-body PET/MRI system.

Conclusion

A clinical adoption of integrated PET/MRI should entail the joint image display and interpretation of MR data, MR-based attenuation maps and uncorrected plus attenuation-corrected PET images in order to recognize potential pitfalls from MR-AC and to ensure clinically accurate image interpretation.

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Titel: Image artifacts from MR-based attenuation correction in clinical, whole-body PET/MRI
verfasst von: Sune H. Keller
Søren Holm
Adam E. Hansen
Bernhard Sattler
Flemming Andersen
Thomas L. Klausen
Liselotte Højgaard
Andreas Kjær
Thomas Beyer
Publikationsdatum: 01.02.2013
Verlag: Springer-Verlag
Erschienen in: Magnetic Resonance Materials in Physics, Biology and Medicine / Ausgabe 1/2013
Print ISSN: 0968-5243
Elektronische ISSN: 1352-8661
DOI: https://doi.org/10.1007/s10334-012-0345-4

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Image artifacts from MR-based attenuation correction in clinical, whole-body PET/MRI