Evidence map›Paper›PMID 32179994›Full record

ArticleEuropean radiology2020

The anterior eye chamber: entry of the natural excretion pathway of gadolinium contrast agents?

Katerina Deike-Hofmann, Paula von Lampe, Heinz-Peter Schlemmer, Nikolaos Bechrakis, Christoph Kleinschnitz, Michael Forsting, Alexander Radbruch

Abstract read
PubMed Publisher
In one paragraph

Article in European radiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 39% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Glymphatic System in Ocular Diseases: Evaluation of MRI Findings.AJNR. American journal of neuroradiology · 2022
    Observational
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Katerina Deike-HofmannDepartment of Radiology, German Cancer Research Center DKFZ, Im Neuenheimer Feld 223, 69120, Heidelberg, Germany. k.deike@dkfz.de.
Paula von LampeDepartment of Radiology, University Clinic Essen, Essen, Germany.
Heinz-Peter SchlemmerDepartment of Radiology, German Cancer Research Center DKFZ, Im Neuenheimer Feld 223, 69120, Heidelberg, Germany.
Nikolaos BechrakisDepartment of Ophthalmology, University Clinic Essen, Essen, Germany.
Christoph KleinschnitzDepartment of Neurology, University Clinic Essen, Essen, Germany.
Michael ForstingDepartment of Radiology, University Clinic Essen, Essen, Germany.
Alexander RadbruchDepartment of Radiology, University Clinic Essen, Essen, Germany.
Essen University Hospital · DEGerman Cancer Research Center · DEHeidelberg University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivePrevious studies provided evidence that gadolinium can be found in the aqueous chamber (AC) of the eye several hours post injection (p.i.) of gadolinium-based contrast agents (GBCAs). This study aimed to investigate whether gadolinium can be detected promptly after injection of a macrocyclic GBCA on contrast-enhanced T1-weighted MRI in the AC of children.

methodsThis retrospective study encompassed MRI of 200 healthy eyes of children suffering from retinoblastoma of the contralateral eye. MRI was performed with an orbital coil with the children in a state of general anesthesia. Differences of signal intensity ratios (∆SIRs) of the AC to the lens were determined between pre and post contrast-enhanced T1-weighted images (Dotarem®, Guerbet, 0.1 ml/kg body weight, mean (standard deviation) p.i. time = 12:24 (± 2:31) min).

resultsA highly significant signal intensity increase was found in the AC of healthy eyes 12 min after GBCA injection (median ∆SIR (interquartile range) = + 0.08 (0.05-0.12), p < 0.0001). In addition, gadolinium enhancement showed a strong negative correlation with children's age in multivariate analysis with adjustment for p.i. time (p < 0.0001).

conclusionsGBCA leakage into the AC of healthy infantile eyes was found promptly after injection. The negative correlation between patient age and GBCA enhancement might be explained by a maturation process of the blood-aqueous barrier or Schlemm's canal. Future studies should assess the duration and potential diagnostic applications as well as possible safety concerns of gadolinium presence in the AC. KEY POINTS: • Leakage of gadolinium-based contrast agent into the aqueous chamber of infantile eyes was found promptly after intravenous injection (p < 0.0001). • Gadolinium enhancement of the anterior eye chamber was negatively correlated with the children's age (p < 0.0001).

Indexed as

Anterior ChamberChild, PreschoolContrast MediaFemaleGadoliniumGadolinium DTPAHumansInfantInfant, NewbornInjections, IntravenousMagnetic Resonance ImagingMaleMeglumineOrganometallic CompoundsRetinal NeoplasmsRetinoblastomaContrast MediaGadoliniumGadolinium DTPAgadoterate meglumineMeglumineOrganometallic CompoundsAnterior chamberContrast mediaEyeGadoliniumMagnetic resonance imaging

Identifiers

PMID32179994
OpenAlexW3010770528

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.