Evidence map›Paper›PMID 32193190›Full record

ArticleAJNR. American journal of neuroradiology2020

Comparison of Enhancement of the Vestibular Perilymph between Variable and Constant Flip Angle-Delayed 3D-FLAIR Sequences in Menière Disease.

S Nahmani, A Vaussy, C Hautefort, J-P Guichard, A Guillonet, E Houdart, A Attyé, M Eliezer

Open access · hybridAbstract readComparative Study
In one paragraph

Article in AJNR. American journal of neuroradiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
1.5field-weighted citation impact, top 17% 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

12 citing papers in PubMed, 2 syntheses or guidelines pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. 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 5 institutions in 3 countries.

S NahmaniFrom the Departments of Neuroradiology (S.N., J.-P.G., A.G., E.H., M.E.), and.ORCID 0000-0002-5183-1563
A VaussySiemens Healthineers (A.V.), Saint-Denis, France.ORCID 0000-0002-8612-2150
C HautefortHead and Neck Surgery (C.H.), Lariboisiere University Hospital, Paris, France.ORCID 0000-0002-5056-5136
J-P GuichardFrom the Departments of Neuroradiology (S.N., J.-P.G., A.G., E.H., M.E.), and.ORCID 0000-0002-8214-7983
A GuillonetFrom the Departments of Neuroradiology (S.N., J.-P.G., A.G., E.H., M.E.), and.ORCID 0000-0003-3058-9453
E HoudartFrom the Departments of Neuroradiology (S.N., J.-P.G., A.G., E.H., M.E.), and.ORCID 0000-0002-8109-5501
A AttyéDepartment of Neuroradiology and MRI (A.A.), Grenoble Alpes University Hospital, SFR RMN Neurosciences, Grenoble, France.ORCID 0000-0002-0233-0367
M EliezerFrom the Departments of Neuroradiology (S.N., J.-P.G., A.G., E.H., M.E.), and michael.eliezer@aphp.fr.ORCID 0000-0002-4973-1790
Anna Needs Neuroblastoma Answers · USGrenoble Institute of Neurosciences · FRHôpital Lariboisière · FRQueen Elizabeth Hospital · BBSiemens (France) · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeEndolymphatic hydrops in patients with Menière disease relies on delayed postcontrast 3D-FLAIR sequences. The purpose of this study was to compare the degree of perilymphatic enhancement and the detection rate of endolymphatic hydrops using constant and variable flip angles sequences. MATERIALS AND

methodsThis was a retrospective study performed in 16 patients with Menière disease who underwent 3T MR imaging 4 hours after gadolinium injection using two 3D-FLAIR sequences with a constant flip angle at 140° for the first and a heavily-T2 variable flip angle for the second. The signal intensity ratio was measured using the ROI method. We graded endolymphatic hydrops and evaluated the cochlear blood-labyrinth barrier impairment.

resultsBoth for symptomatic and asymptomatic ears, the median signal intensity ratio was significantly higher with the constant flip angle than with the heavily-T2 variable flip angle (7.16 versus 1.54 and 7.00 versus 1.45,

conclusions3D-FLAIR constant flip angle sequences provide a higher signal intensity ratio and are superior to heavily-T2 variable flip angle sequences in reliably evaluating the cochlear blood-labyrinth barrier impairment and the endolymphatic space.

Indexed as

AdultAgedContrast MediaEndolymphatic HydropsFemaleGadolinium DTPAHumansMagnetic Resonance ImagingMaleMeniere DiseaseMiddle AgedPerilymphRetrospective StudiesContrast MediaGadolinium DTPA

Identifiers

PMID32193190
PMCPMC7144642
OpenAlexW3011614497

What OpenQuestion holds

Textmetadata
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.