Evidence map›Paper›PMID 21298392›Full record

ArticleEuropean archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery2011

Evaluation of the early phase of Bell's palsy using 3 T MRI.

Hartmut Peter Burmeister, Pascal Andreas Thomas Baltzer, Gerd Fabian Volk, Carsten Michael Klingner, Anke Kraft, Matthias Dietzel, Otto Wilhelm Witte, Werner Alois Kaiser, Orlando Guntinas-Lichius

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

13 citing papers in PubMed, 30 citations in OpenAlex.

  1. Evaluation of postoperative nerve root oedema and analysis of risk factors in unilateral biportal endoscopic discectomy using the DESS sequence: preliminary results.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
    Article
  2. Is Bell's palsy a bilateral condition? A temporal magnetic resonance image analysis of contrast enhancement across all segments of the facial nerve.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
    Article
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  5. Review
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  7. Economic Impact of Diagnostic Imaging in the Workup of Uncomplicated Bell's Palsy.Journal of neurological surgery. Part B, Skull base · 2022
    Article
  8. Article
  9. Article
  10. Can MRI quantify the volume changes of denervated facial muscles?European journal of translational myology · 2020
    Article
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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

9 authors at 2 institutions in 2 countries.

Hartmut Peter BurmeisterInstitute of Diagnostic and Interventional Radiology, University Hospital-Friedrich Schiller University Jena, Philosophenweg 3, 07740 Jena, Germany. hartmut.burmeister@med.uni-jena.de
Pascal Andreas Thomas Baltzer
Gerd Fabian Volk
Carsten Michael Klingner
Anke Kraft
Matthias Dietzel
Otto Wilhelm Witte
Werner Alois Kaiser
Orlando Guntinas-Lichius
Friedrich Schiller University Jena · DEBrigham and Women's Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This prospective study on Bell's palsy investigated the value of 3 T MRI as a diagnostic tool to evaluate pathophysiological changes (i.e. edema) of facial nerve segments and the possibility to differentiate patients with high risk for incomplete recovery from patients who recover completely within 3 days after symptoms onset. For this institutional review board approved investigation, thirty patients (14 male, 16 female, mean age 44 years) with Bell's palsy underwent pre and postcontrast 3 T MRI of the cerebellopontine angle. T1-weighted imaging was performed (TR 20.0 ms, TE 2.46 ms, isotropic voxel size: 0.6 mm). Region-of-interest measurements were performed on the healthy and paralyzed side. To obtain normalized values, signal intensity increase percentage (SIIP) values were divided by contralateral results of the healthy side. Signal intensity measurements of examined nerve segments were compared using Wilcoxon and Mann-Whitney U tests and correlated to clinical findings categorized by the House-Brackmann score. The lesion side showed significantly higher signal intensities in the premeatal segment before and after contrast agent administration (P < 0.001). SIIP was highest in the premeatal segment compared to the geniculate ganglion (P < 0.001). Correlation analyses revealed no association between signal intensity measurements, clinical findings or early recovery rates after 3 months (P > 0.05). According to our results, early palsy-associated pathophysiological changes in the facial nerve premeatal segment might also be related to accumulation of proteins and not exclusively to edema. However, contrast agent enhancement quantification was not suitable as a diagnostic tool to distinguish different prognostic groups.

Indexed as

Early DiagnosisImaging, Three-DimensionalAdolescentAdultAgedBell PalsyDiagnosis, DifferentialFacial NerveFemaleFollow-Up StudiesGeniculate GanglionHumansMagnetic Resonance ImagingMaleMiddle AgedPrognosis

Identifiers

PMID21298392
OpenAlexW2034700700

What OpenQuestion holds

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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.