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Erschienen in: European Journal of Nuclear Medicine and Molecular Imaging 1/2009

01.03.2009

Risks and safety aspects related to PET/MR examinations

verfasst von: Gunnar Brix, Elke A. Nekolla, Dietmar Nosske, Jürgen Griebel

Erschienen in: European Journal of Nuclear Medicine and Molecular Imaging | Sonderheft 1/2009

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Abstract

Introduction

The introduction of positron emission tomography (PET)/magnetic resonance (MR) systems into medical practice in the foreseeable future may not only lead to a gain in clinical diagnosis compared to PET/computed tomography (CT) imaging due to the superior soft-tissue contrast of the MR technology but can also substantially reduce exposure of patients to ionizing radiation. On the other hand, there are also risks and health effects associated with the use of diagnostic MR devices that have to be considered carefully.

Objectives

This review article summarizes biophysical and biological aspects, which are of relevance for the assessment of health effects related to the exposure of patients to both ionizing radiation in PET and magnetic and electromagnetic fields in MR. On this basis, some considerations concerning the justification and optimization of PET/MR examinations are presented—as far as this is possible at this very early stage.

Discussion

Current safety standards do not take into account synergistic effects of ionizing radiation and magnetic and electromagnetic fields. In the light of the developing PET/MR technology, there is an urgent need to investigate this aspect in more detail for exposure levels that will occur at PET/MR systems.
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Metadaten
Titel
Risks and safety aspects related to PET/MR examinations
verfasst von
Gunnar Brix
Elke A. Nekolla
Dietmar Nosske
Jürgen Griebel
Publikationsdatum
01.03.2009
Verlag
Springer-Verlag
Erschienen in
European Journal of Nuclear Medicine and Molecular Imaging / Ausgabe Sonderheft 1/2009
Print ISSN: 1619-7070
Elektronische ISSN: 1619-7089
DOI
https://doi.org/10.1007/s00259-008-0937-4

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