Abstract
Background Radiologists have been administering gadolinium-based contrast agents (GBCA) in magnetic
resonance imaging for several decades, so that there is abundant experience with these
agents regarding allergic-like reactions, nephrogenic systemic fibrosis (NSF) and
gadolinium retention in the brain.
Methods This review is based on a selective literature search and reflects the current state
of research on acute adverse effects of GBCA, NSF and brain retention of gadolinium.
Results Due to the frequent use of GBCA, data on adverse effects of these compounds are available
in large collectives. Allergic-like reactions occurred rarely, whereas severe acute
reactions were very rarely observed. Systemic changes in NSF also occur very rarely,
although measures to avoid NSF resulted in a significantly reduced incidence of NSF.
Due to gadolinium retention in the body after administration of linear MR contrast
agents, only macrocyclic preparations are currently used with few exceptions. Clear
clinical correlates of gadolinium retention in the brain could not be identified so
far. Although the clinical added value of GBCA is undisputed, individual risks associated
with the injection of GBCA should be identified and the use of non-contrast enhanced
MR techniques should be considered. Alternative contrast agents such as iron oxide
nanoparticles are not clinically approved, but are currently undergoing clinical trials.
Conclusion GBCA have a very good risk profile with a low rate of adverse effects or systemic
manifestations such as NSF. Gadolinium retention in the brain can be minimized by
the use of macrocyclic GBCA, although clear clinical correlates due to gadolinium
retention in the brain following administration of linear GBCA could not be identified
yet.
Key Points:
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Acute adverse effects are predominantly mild/moderate, rarely severe reactions occur.
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International guidelines resulted in significant reduction of nephrogenic systemic
fibrosis.
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Application of macrocyclic contrast agents minimizes gadolinium retention in the brain.
Citation Format
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Bäuerle T, Saake M, Uder M. Gadolinium-based contrast agents: What we learned from
acute adverse events, nephrogenic systemic fibrosis and brain retention. Fortschr
Röntgenstr 2021; 193: 1010 – 1018
Key words
gadolinium-based contrast agents - acute adverse events - nephrogenic systemic fibrosis
- gadolinium retention