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In Vivo Morphometric Analysis of Human Cranial Nerves Using Magnetic Resonance Imaging in Menière's Disease Ears and Normal Hearing Ears
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Does MR arthrography cause intracranial gadolinium deposition?

Katherine M Bunnell1, Robert Hemke1,2, Jad S Husseini1

  • 1Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Yawkey 6E, 55 Fruit Street, Boston, MA, 02114, USA.

Skeletal Radiology
|January 27, 2020
PubMed
Summary
This summary is machine-generated.

This study found no evidence of brain gadolinium deposition after MR arthrography (MRA). Gadolinium dose from MRA did not correlate with intracranial signal intensity ratios in brain regions.

Keywords:
Brain MRIGadoliniumHipIntra-articularMR arthrography (MRA)Shoulder

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Area of Science:

  • Radiology
  • Neuroimaging
  • Medical Imaging

Background:

  • Gadolinium-based contrast agents are used in MRI.
  • Intra-articular gadolinium from MR arthrography (MRA) raises concerns about potential brain deposition.
  • Previous studies have focused on intravenous gadolinium exposure.

Purpose of the Study:

  • To investigate whether intra-articular gadolinium from MRA leads to gadolinium deposition in the brain.
  • To determine if the dose of intra-articular gadolinium correlates with intracranial gadolinium deposition.

Main Methods:

  • Retrospective study comparing patients who underwent hip or shoulder MRA with a control group.
  • Signal intensities (SI) of brain regions (pons, dentate nuclei, globus pallidi, thalamus) normalized to CSF were measured on non-contrast T1-weighted MRI.
  • Statistical analysis included t-tests and linear correlation analysis to compare SI ratios and assess dose-response relationships.

Main Results:

  • 109 MRA patients and 149 controls were analyzed.
  • No significant differences in brain region SI ratios were found between MRA patients and controls.
  • No association was observed between intra-articular gadolinium dose and brain SI ratios within the MRA group.

Conclusions:

  • MR imaging provided no evidence of intracranial gadolinium deposition following intra-articular MRA.
  • The dose of gadolinium administered during MRA was not associated with increased signal intensity in commonly affected brain regions.