Evidence map›Paper›PMID 31345942›Full record

ArticleAJNR. American journal of neuroradiology2019

Signal Hyperintensity on Unenhanced T1-Weighted Brain and Cervical Spinal Cord MR Images after Multiple Doses of Linear Gadolinium-Based Contrast Agent.

G Barisano, B Bigjahan, S Metting, S Cen, L Amezcua, A Lerner, A W Toga, M Law

Open access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.4field-weighted citation impact, top 46% 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

3 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
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

8 authors at 3 institutions in 4 countries.

G BarisanoFrom the Department of Radiology (G.B., B.B., S.M., S.C., A.L., M.L.) giuseppe.barisano@loni.usc.edu.ORCID 0000-0001-5598-1369
B BigjahanFrom the Department of Radiology (G.B., B.B., S.M., S.C., A.L., M.L.).ORCID 0000-0003-3306-9920
S MettingFrom the Department of Radiology (G.B., B.B., S.M., S.C., A.L., M.L.).ORCID 0000-0002-5923-5977
S CenFrom the Department of Radiology (G.B., B.B., S.M., S.C., A.L., M.L.).ORCID 0000-0002-7859-8909
L AmezcuaDepartment of Neurology (L.A.), Keck School of Medicine, University of Southern California, Los Angeles, California.ORCID 0000-0003-1542-7819
A LernerFrom the Department of Radiology (G.B., B.B., S.M., S.C., A.L., M.L.).ORCID 0000-0001-9214-7912
A W TogaStevens Neuroimaging and Informatics Institute (G.B., B.B., A.W.T., M.L.).ORCID 0000-0001-7902-3755
M LawFrom the Department of Radiology (G.B., B.B., S.M., S.C., A.L., M.L.).ORCID 0000-0001-8414-1991
Mahindra and Mahindra Limited (India) · INCognitive Neuroimaging Lab · FRUniversity of Southern California · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeThe clinical implications of gadolinium deposition in the CNS are not fully understood, and it is still not known whether gadolinium tends to be retained more in the brain compared with the spinal cord. In this study, we assessed the effects of linear gadolinium-based contrast agents on the T1 signal intensity of 3 cerebral areas (dentate nucleus, globus pallidus, and the less studied substantia nigra) and the cervical spinal cord in a population of patients with MS. MATERIALS AND

methodsA single-center population of 100 patients with MS was analyzed. Patients underwent 2-16 contrast-enhanced MRIs. Fifty patients received ≤5 linear gadolinium injections, and 50 patients had ≥6 injections: Fifty-two patients had both Gd-DTPA and gadobenate dimeglumine injections, and 48 patients received only gadobenate dimeglumine. A quantitative analysis of signal intensity changes was independently performed by 2 readers on the first and last MR imaging scan. The globus pallidus-to-thalamus, substantia nigra-to-midbrain, dentate nucleus-to-middle cerebellar peduncle, and the cervical spinal cord-to-pons signal intensity ratios were calculated.

resultsAn increase of globus pallidus-to-thalamus (mean, +0.0251 ± 0.0432;

conclusionsPatients with MS receiving ≥6 linear gadolinium-based contrast agent injections showed a significant increase in the signal intensity of the globus pallidus, dentate nucleus, and substantia nigra; no detectable changes were observed in the cervical spinal cord.

Indexed as

BrainCervical CordContrast MediaFemaleGadolinium DTPAHumansMagnetic Resonance ImagingMaleMiddle AgedMultiple SclerosisRetrospective StudiesContrast MediaGadolinium DTPA

Identifiers

PMID31345942
PMCPMC7048477
OpenAlexW2963038458

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.