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Gadolinium Deposition and Chronic Toxicity.

Joana Ramalho1, Miguel Ramalho2

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Summary

Gadolinium-based contrast agents (GBCAs) can lead to gadolinium retention in the brain and other tissues. This review covers GBCA risks, retention data, and safety recommendations for clinicians and patients.

Keywords:
GBCAsGadoliniumGadolinium deposition diseaseGadolinium retentionGadolinium storage conditionMR imaging

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Area of Science:

  • Radiology and Medical Imaging
  • Toxicology
  • Pharmacology

Background:

  • Gadolinium-based contrast agents (GBCAs) are widely used in medical imaging.
  • Concerns exist regarding gadolinium retention in tissues, particularly the brain.
  • Understanding GBCA risks is crucial for patient safety.

Purpose of the Study:

  • To review current data on in vivo gadolinium retention from GBCA administration.
  • To discuss potential toxic effects associated with gadolinium deposition.
  • To provide updated safety recommendations for clinical practice.

Main Methods:

  • Literature review of recent publications on GBCA pharmacokinetics and biodistribution.
  • Analysis of studies reporting gadolinium retention in human and animal tissues.
  • Synthesis of findings in light of current society guidelines.

Main Results:

  • Gadolinium retention in brain tissue following GBCA administration is a documented phenomenon.
  • The extent and clinical significance of gadolinium retention are subjects of ongoing research.
  • Potential long-term toxic effects require further investigation.

Conclusions:

  • Clinicians and radiologists must be aware of the latest data on GBCA risks.
  • Informed patient consent regarding potential gadolinium retention is essential.
  • Adherence to updated safety guidelines can mitigate risks associated with GBCA use.