Evidence map›Paper›PMID 32413079›Full record

ArticlePloS one2020

Direct comparison of activation maps during galvanic vestibular stimulation: A hybrid H2[15 O] PET-BOLD MRI activation study.

Sandra Becker-Bense, Frode Willoch, Thomas Stephan, Matthias Brendel, Igor Yakushev, Maximilian Habs, Sibylle Ziegler, Michael Herz, Markus Schwaiger, Marianne Dieterich and 1 more

Open access · goldAbstract readComparative Study
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 29% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

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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

11 authors at 4 institutions in 2 countries.

Sandra Becker-BenseDepartment of Neurology, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany.ORCID 0000-0001-9214-3583
Frode WillochDepartment of Nuclear Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany.
Thomas StephanDepartment of Neurology, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany.
Matthias BrendelDepartment of Nuclear Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany.
Igor YakushevDepartment of Nuclear Medicine, Technical University, Munich, Germany.
Maximilian HabsDepartment of Neurology, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany.
Sibylle ZieglerDepartment of Nuclear Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany.
Michael HerzDepartment of Nuclear Medicine, Technical University, Munich, Germany.
Markus SchwaigerDepartment of Nuclear Medicine, Technical University, Munich, Germany.
Marianne DieterichDepartment of Neurology, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany.
Peter BartensteinGerman Center for Vertigo and Balance Disorders (DSGZ), University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany.
Ludwig-Maximilians-Universität München · DETechnical University of Munich · DEMunich Cluster for Systems Neurology · DEUniversity of Oslo · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Previous unimodal PET and fMRI studies in humans revealed a reproducible vestibular brain activation pattern, but with variations in its weighting and expansiveness. Hybrid studies minimizing methodological variations at baseline conditions are rare and still lacking for task-based designs. Thus, we applied for the first time hybrid 3T PET-MRI scanning (Siemens mMR) in healthy volunteers using galvanic vestibular stimulation (GVS) in healthy volunteers in order to directly compare H215O-PET and BOLD MRI responses. List mode PET acquisition started with the injection of 750 MBq H215O simultaneously to MRI EPI sequences. Group-level statistical parametric maps were generated for GVS vs. rest contrasts of PET, MR-onset (event-related), and MR-block. All contrasts showed a similar bilateral vestibular activation pattern with remarkable proximity of activation foci. Both BOLD contrasts gave more bilateral wide-spread activation clusters than PET; no area showed contradictory signal responses. PET still confirmed the right-hemispheric lateralization of the vestibular system, whereas BOLD-onset revealed only a tendency. The reciprocal inhibitory visual-vestibular interaction concept was confirmed by PET signal decreases in primary and secondary visual cortices, and BOLD-block decreases in secondary visual areas. In conclusion, MRI activation maps contained a mixture of CBF measured using H215O-PET and additional non-CBF effects, and the activation-deactivation pattern of the BOLD-block appears to be more similar to the H215O-PET than the BOLD-onset.

Indexed as

Magnetic Resonance ImagingMultimodal ImagingPositron-Emission TomographyBrainBrain MappingCerebrovascular CirculationElectric StimulationFemaleHumansMaleMiddle AgedOxygenPerceptionVestibule, LabyrinthOxygen

Identifiers

PMID32413079
PMCPMC7228124
OpenAlexW3024212053

What OpenQuestion holds

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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.