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CC BY-NC-ND 4.0 · World J Nucl Med 2020; 19(01): 85-88
DOI: 10.4103/wjnm.WJNM_10_19
Case Report

Positron emission tomography-magnetic resonance liver parenchyma attenuation correction artifact in secondary hemochromatosis

Robert Matthews
1   Department of Radiology, Stony Brook University Hospital, NY, USA
,
Michael Joseph Salerno
Department of Biomedical Engineering, Stony Brook University, NY, USA
,
Paul Vaska
Department of Biomedical Engineering, Stony Brook University, NY, USA
,
Halley Hindman
1   Department of Radiology, Stony Brook University Hospital, NY, USA
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Abstract

Positron emission tomography-magnetic resonance (PET-MR) hybrid imaging is a relatively new imaging modality combining the superb MR contrast capabilities among different soft-tissue structures with the high sensitivity of PET functional imaging. With the development of any new technology, a variety of limitations will be encountered including the introduction of new types of artifacts. In this case report, we present a restaging PET-MR scan for multiple myeloma that showed severely decreased fluorodeoxyglucose activity in the liver on the PET attenuated corrected images. Careful analysis showed the cause of the decreased activity to be the improper density assignment on the mu map caused by iron deposition within the liver. Follow-up imaging showed reversal of the phenomena following improvement of liver disease.

Keywords

Attenuation correction - fluorodeoxyglucose - mu map - multiple myeloma - positron emission tomography-magnetic resonance

Financial support and sponsorship

Nil.




Publikationsverlauf

Eingereicht: 23. Januar 2019

Angenommen: 24. März 2019

Artikel online veröffentlicht:
19. April 2022

© 2020. Sociedade Brasileira de Neurocirurgia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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