Evidence map›Paper›PMID 33606114›Full record

ArticleMagma (New York, N.Y.)2022

Mapping tumour heterogeneity with pulsed 3D CEST MRI in non-enhancing glioma at 3 T.

Esther A H Warnert, Tobias C Wood, Fatih Incekara, Gareth J Barker, Arnaud J P Vincent, Joost Schouten, Johan M Kros, Martin van den Bent, Marion Smits, Juan A Hernandez Tamames

Open access · hybridAbstract read
In one paragraph

Article in Magma (New York, N.Y.), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

17 citing papers in PubMed, 22 citations in OpenAlex.

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  8. Advanced MR Techniques for Preoperative Glioma Characterization: Part 2.Journal of magnetic resonance imaging : JMRI · 2023
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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

10 authors at 2 institutions in 2 countries.

Esther A H WarnertDepartment of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, NL, the Netherlands. e.warnert@erasmusmc.nl.ORCID http://orcid.org/0000-0002-3196-1416
Tobias C WoodInstitute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Fatih IncekaraDepartment of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, NL, the Netherlands.
Gareth J BarkerInstitute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Arnaud J P VincentDepartment of Neurosurgery, Erasmus MC, Rotterdam, NL, the Netherlands.
Joost SchoutenDepartment of Neurosurgery, Erasmus MC, Rotterdam, NL, the Netherlands.
Johan M KrosDepartment of Pathology, Erasmus MC, Rotterdam, NL, the Netherlands.
Martin van den BentDepartment of Neurology, Erasmus MC, Rotterdam, NL, the Netherlands.
Marion SmitsDepartment of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, NL, the Netherlands.
Juan A Hernandez TamamesDepartment of Radiology and Nuclear Medicine, Erasmus MC, Rotterdam, NL, the Netherlands.
Erasmus MC · NLKing's College London · GB

Funding

Brain Tumour Charity GN-000540KWF Kankerbestrijding EMCR 2015-7859Nederlandse Organisatie voor Wetenschappelijk Onderzoek 91619121
6 · The paper itself

Abstract

objectiveAmide proton transfer (APT) weighted chemical exchange saturation transfer (CEST) imaging is increasingly used to investigate high-grade, enhancing brain tumours. Non-enhancing glioma is currently less studied, but shows heterogeneous pathophysiology with subtypes having equally poor prognosis as enhancing glioma. Here, we investigate the use of CEST MRI to best differentiate non-enhancing glioma from healthy tissue and image tumour heterogeneity. MATERIALS &

methodsA 3D pulsed CEST sequence was applied at 3 Tesla with whole tumour coverage and 31 off-resonance frequencies (+6 to -6 ppm) in 18 patients with non-enhancing glioma. Magnetisation transfer ratio asymmetry (MTRasym) and Lorentzian difference (LD) maps at 3.5 ppm were compared for differentiation of tumour versus normal appearing white matter. Heterogeneity was mapped by calculating volume percentages of the tumour showing hyperintense APT-weighted signal.

resultsLDamide gave greater effect sizes than MTRasym to differentiate non-enhancing glioma from normal appearing white matter. On average, 17.9 % ± 13.3 % (min-max: 2.4 %-54.5 %) of the tumour volume showed hyperintense LDamide in non-enhancing glioma.

conclusionThis works illustrates the need for whole tumour coverage to investigate heterogeneity in increased APT-weighted CEST signal in non-enhancing glioma. Future work should investigate whether targeting hyperintense LDamide regions for biopsies improves diagnosis of non-enhancing glioma.

Indexed as

Brain NeoplasmsGliomaAlgorithmsHumansMagnetic Resonance ImagingProtonsProtonsAPTCESTNOENon-enhancing glioma

Identifiers

PMID33606114
PMCPMC8901516
OpenAlexW3133372255

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.