Evidence map›Paper›PMID 25061567›Full record

ArticleNeuroImage. Clinical2014

MRI texture heterogeneity in the optic nerve predicts visual recovery after acute optic neuritis.

Yunyan Zhang, Luanne M Metz, James N Scott, Jessie Trufyn, Gordon H Fick, Fiona Costello

Open access · goldAbstract read
In one paragraph

Article in NeuroImage. Clinical, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. 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

6 authors at 1 institution in 1 country.

Yunyan ZhangDepartment of Radiology, University of Calgary, 3330 Hospital Dr NW, Calgary, Alberta T2N 4N1, Canada ; Department of Clinical Neurosciences, University of Calgary, 3330 Hospital Dr NW, Calgary, Alberta T2N 4N1, Canada ; Hotchkiss Brain Institute, University of Calgary, 3330 Hospital Dr NW, Calgary, Alberta T2N 4N1, Canada.
Luanne M MetzDepartment of Clinical Neurosciences, University of Calgary, 3330 Hospital Dr NW, Calgary, Alberta T2N 4N1, Canada ; Hotchkiss Brain Institute, University of Calgary, 3330 Hospital Dr NW, Calgary, Alberta T2N 4N1, Canada.
James N ScottDepartment of Radiology, University of Calgary, 3330 Hospital Dr NW, Calgary, Alberta T2N 4N1, Canada ; Department of Clinical Neurosciences, University of Calgary, 3330 Hospital Dr NW, Calgary, Alberta T2N 4N1, Canada.
Jessie TrufynDepartment of Clinical Neurosciences, University of Calgary, 3330 Hospital Dr NW, Calgary, Alberta T2N 4N1, Canada ; Hotchkiss Brain Institute, University of Calgary, 3330 Hospital Dr NW, Calgary, Alberta T2N 4N1, Canada.
Gordon H FickDepartment of Community Health Sciences, University of Calgary, 3330 Hospital Dr NW, Calgary, Alberta T2N 4N1, Canada.
Fiona CostelloDepartment of Clinical Neurosciences, University of Calgary, 3330 Hospital Dr NW, Calgary, Alberta T2N 4N1, Canada ; Hotchkiss Brain Institute, University of Calgary, 3330 Hospital Dr NW, Calgary, Alberta T2N 4N1, Canada.
University of Calgary · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo test the feasibility of using multi-scale MRI texture analysis to assess optic nerve pathology and to investigate how visual recovery relates to the severity of acute tissue damage in the optic nerve in patients after optic neuritis (ON). MATERIALS AND

methodsWe recruited 25 patients with acute ON. Retinal nerve fiber layer (RNFL) thickness; MRI lesion length and enhancement; optic nerve area ratio; and multi-scale MRI texture analysis, a measure of structural integrity, were used to assess tissue damage at baseline, and at 6 and 12 months. The recovery in vision was defined as the functional outcome. Eight healthy subjects were imaged for control.

resultsWe identified 25 lesions in the affected eyes (9 enhanced) and 5 in the clinically non-affected eyes (none enhanced). At baseline, we found that RNFL values were 20% thicker and lesion texture 14% more heterogeneous in the affected eyes than in the non-affected eyes, and lesion texture ratio of affected to non-affected eyes was greater in patients than in controls. In the affected eyes, visual acuity recovered significantly over 6 (18/23 patients) and 12 months (18/21 patients) when RNFL thickness and optic nerve area ratio decreased over time. Texture heterogeneity in the standard MRI of acute optic nerve lesions was the only measure that predicted functional recovery after ON.

conclusionsTissue heterogeneity may be a potential measure of functional outcome in ON patients and advanced analysis of the texture in standard MRI could provide insights into mechanisms of injury and recovery in patients with similar disorders.

Indexed as

Acute DiseaseAdultAlgorithmsFeasibility StudiesFemaleHumansImage EnhancementImage Interpretation, Computer-AssistedImaging, Three-DimensionalMagnetic Resonance ImagingMaleMiddle AgedOptic NeuritisPattern Recognition, AutomatedRecovery of FunctionReproducibility of ResultsAcute tissue damageMRIOptic neuritisPredictionTexture heterogeneityVisual recovery

Identifiers

PMID25061567
PMCPMC4107369
OpenAlexW2018091883

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.