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Preparation and In Vitro Characterization of Dendrimer-based Contrast Agents for Magnetic Resonance Imaging
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Published on: December 4, 2016

Extracellular gadolinium-based contrast media: differences in diagnostic efficacy.

Aart J van der Molen1, Marie-France Bellin

  • 1Department of Radiology C-2S, Leiden University Medical Centre, Albinusdreef 2, NL-2333 ZA Leiden, The Netherlands. molen@lumc.nl

European Journal of Radiology
|March 29, 2008
PubMed
Summary

Gadolinium-based contrast agents (Gd-CAs) significantly enhance MRI diagnostic efficacy, improving lesion detection and altering diagnoses in up to 40% of patients. Higher doses or specific agent types may benefit select MRI applications.

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Area of Science:

  • Radiology
  • Medical Imaging

Background:

  • Gadolinium-based contrast agents (Gd-CAs) have been integral to MRI since 1988.
  • Gd-CAs significantly enhance diagnostic accuracy by improving lesion detection and delineation.

Purpose of the Study:

  • To evaluate the diagnostic efficacy of various Gd-CAs in MRI.
  • To explore the benefits of increased dosing and specific agent properties for select indications.

Main Methods:

  • Review of studies on single Gd-CA efficacy compared to unenhanced MRI.
  • Analysis of comparative studies evaluating different Gd-CAs.
  • Assessment of dose escalation and agent characteristics for specific MRI applications.

Main Results:

  • All Gd-CAs improve lesion detection, potentially altering diagnoses in up to 40% of patients.
  • No clinically significant diagnostic efficacy differences were found between various extracellular Gd-CAs.
  • Higher concentration or protein-bound agents may be advantageous for perfusion MRI; higher relaxivity agents may allow lower doses.

Conclusions:

  • Gd-CAs are crucial for enhancing MRI diagnostic performance.
  • Dose optimization and selection of appropriate agent properties are important for specific clinical scenarios like brain perfusion and MR angiography.