Evidence map›Paper›PMID 28187173›Full record

SynthesisPloS one2017

The presence of the gadolinium-based contrast agent depositions in the brain and symptoms of gadolinium neurotoxicity - A systematic review.

Cyprian Olchowy, Kamil Cebulski, Mateusz Łasecki, Radosław Chaber, Anna Olchowy, Krzysztof Kałwak, Urszula Zaleska-Dorobisz

Abstract readSystematic Review
In one paragraph

Synthesis in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

81 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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21 more citing papers are in PubMed but not listed here.

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.

Cyprian OlchowyDepartment of General and Pediatric Radiology, Wroclaw Medical University, Wrocław, Poland.
Kamil CebulskiRadiology Students' Scientific Club, Wrocław Medical University, Wroclaw, Poland Department of General and Pediatric Radiology, Wroclaw Medical University, Wroclaw, Poland.
Mateusz ŁaseckiDepartment of General and Pediatric Radiology, Wroclaw Medical University, Wrocław, Poland.
Radosław ChaberDivision of Hematology, Cancer Prevention and Propaedeutics of Rare Diseases, Faculty of Medicine, University of Rzeszow, Rzeszów, Poland.
Anna OlchowyRadiology Students' Scientific Club, Wrocław Medical University, Wroclaw, Poland Department of General and Pediatric Radiology, Wroclaw Medical University, Wroclaw, Poland.
Krzysztof KałwakDepartment of Pediatric Hematology, Oncology and BMT, Wroclaw Medical University, Wrocław, Poland.
Urszula Zaleska-DorobiszDepartment of General and Pediatric Radiology, Wroclaw Medical University, Wrocław, Poland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeGadolinium based contrast agents (GBCAs) are widely used in magnetic resonance imaging, but recently, high signal intensity in the cerebellum structures was reported after repeated administrations of contrast- enhanced magnetic resonance images. The aim of this systematic review was to investigate the association between increased signal intensity in the dentate nucleus and globus pallidus in the brain and repeated administrations of GBCAs. Additionally, we focused on possible short- and long-term consequences of gadolinium use in those patients.

methodsSystematic review of retrospective investigations in PubMed and Medline was performed in July 2016. Primary outcomes included the presence of increased signal intensity within the dentate nucleus and globus pallidus on unenhanced T1-weighted MR images in patients following administrations of GBCAs. Two independent reviewers were responsible for search and data extraction.

results25 publications satisfied inclusion criteria (19 magnetic resonance images analyses, 3 case reports; 3 autopsy studies). Magnetic resonance images of 1247 patients with increased signal intensity on unenhanced T1-weighted MR images were analyzed as well as tissue specimens from 27 patients. Signal intensity correlated positively with the exposure to GBCAs and was greater after serial administrations of linear nonionic than cyclic contrast agents. Gadolinium was detected in all tissue examinations.

conclusionsHigh signal intensity in the dentate nucleus and globus pallidus on unenhanced T1-weighted magnetic resonance images were associated with previous administration of GBCAs. Signal intensity correlated negatively with stability of contrast agents. Clinical significance of gadolinium deposition in the brain remains unclear. There is a strong need for further research to identify type of gadolinium deposited in the brain as well as to gather knowledge about long-term consequences.

Indexed as

BrainContrast MediaGadoliniumHumansMagnetic Resonance ImagingNeurotoxinsContrast MediaGadoliniumNeurotoxins

Identifiers

PMID28187173
PMCPMC5302442

What OpenQuestion holds

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Registered trials

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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.