Evidence map›Paper›PMID 35682499›Full record

ArticleInternational journal of environmental research and public health2022

Multishell Diffusion MR Tractography Yields Morphological and Microstructural Information of the Anterior Optic Pathway: A Proof-of-Concept Study in Patients with Leber's Hereditary Optic Neuropathy.

David Neil Manners, Laura Ludovica Gramegna, Chiara La Morgia, Giovanni Sighinolfi, Cristiana Fiscone, Michele Carbonelli, Martina Romagnoli, Valerio Carelli, Caterina Tonon, Raffaele Lodi

Open access · goldAbstract read
In one paragraph

Article in International journal of environmental research and public health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
0.9field-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

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

  1. Pooled it
  2. 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

10 authors at 2 institutions in 1 country.

David Neil MannersDepartment of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, 40138 Bologna, Italy.
Laura Ludovica GramegnaDepartment of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, 40138 Bologna, Italy.
Chiara La MorgiaIRCCS Istituto delle Scienze Neurologiche di Bologna, Bellaria Hospital, 40139 Bologna, Italy.
Giovanni SighinolfiDepartment of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, 40138 Bologna, Italy.
Cristiana FisconeDepartment of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, 40138 Bologna, Italy.ORCID 0000-0003-4306-244X
Michele CarbonelliDepartment of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, 40138 Bologna, Italy.
Martina RomagnoliIRCCS Istituto delle Scienze Neurologiche di Bologna, Bellaria Hospital, 40139 Bologna, Italy.ORCID 0000-0003-1995-558X
Valerio CarelliDepartment of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, 40138 Bologna, Italy.ORCID 0000-0003-4923-6404
Caterina TononDepartment of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, 40138 Bologna, Italy.
Raffaele LodiDepartment of Biomedical and Neuromotor Sciences (DIBINEM), University of Bologna, 40138 Bologna, Italy.
Istituto delle Scienze Neurologiche di Bologna · ITUniversity of Bologna · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tractography based on multishell diffusion-weighted magnetic resonance imaging (DWI) can be used to estimate the course of myelinated white matter tracts and nerves, yielding valuable information regarding normal anatomy and variability. DWI is sensitive to the local tissue microstructure, so tractography can be used to estimate tissue properties within nerve tracts at a resolution of millimeters. This study aimed to test the applicability of the method using a disease with a well-established pattern of myelinated nerve involvement. Eight patients with LHON and 13 age-matched healthy controls underwent tractography of the anterior optic pathway. Diffusion parameters were compared between groups, and for the patient group correlated with clinical/ophthalmological parameters. Tractography established the course of the anterior optic pathway in both patients and controls. Localized changes in fractional anisotropy were observed, and related to estimates of different tissue compartments within the nerve and tract. The proportion of different compartments correlated with markers of disease severity. The method described allows both anatomical localization and tissue characterization in vivo, permitting both visualization of variation at the individual level and statistical inference at the group level. It provides a valuable adjunct to ex vivo anatomical and histological study of normal variation and disease processes.

Indexed as

Optic Atrophy, Hereditary, LeberWhite MatterBrainDiffusion Magnetic Resonance ImagingDiffusion Tensor ImagingHumansanterior optic pathwaybrain diffusion-weighted MR imagingbrain functional morphologybrain tractographyhuman anatomy of the nervous systemLeber’s hereditary optic neuropathyneuro-ophthalmology

Identifiers

PMID35682499
PMCPMC9180110
OpenAlexW4281616558

What OpenQuestion holds

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LicenceCC BY
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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.