Evidence map›Paper›PMID 19636503›Full record

ArticleKlinische Neuroradiologie2009

Linear longitudinal decline in fractional anisotropy in patients with amyotrophic lateral sclerosis: preliminary results.

Joshua P Nickerson, Christopher J Koski, Andrew C Boyer, Heather N Burbank, Rup Tandan, Christopher G Filippi

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Article in Klinische Neuroradiologie, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 23% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Brain diffusion tensor imaging in dogs with degenerative myelopathy.Journal of veterinary internal medicine · 2021
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  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
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  11. Article
  12. Progression of white matter degeneration in amyotrophic lateral sclerosis: A diffusion tensor imaging study.Amyotrophic lateral sclerosis : official publication of the World Federation of Neurology Research Group on Motor Neuron Diseases · 2011
    Article
  13. Article
  14. Review
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 3 institutions in 1 country.

Joshua P NickersonDepartment of Radiology, Fletcher Allen Healthcare/The University of Vermont, 111 Colchester Ave., Burlington, VT 05401, USA. Joshua.Nickerson@vtmednet.org
Christopher J Koski
Andrew C Boyer
Heather N Burbank
Rup Tandan
Christopher G Filippi
University of Vermont · USAllen Hospital · USJames Madison University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeAs potential therapies aimed at halting or slowing the decline in upper motor neuron function in patients with amyotrophic lateral sclerosis (ALS) or primary lateral sclerosis (PLS) are developed, a quantitative method for monitoring response will be necessary. Measurement of fractional anisotropy (FA) using diffusion tensor imaging (DTI) over time should parallel functional decline from upper motor neuron degeneration in these patients. PATIENTS AND

methodsTwo patients with definite ALS were imaged at 3.0 T and FA values were obtained in the corticospinal tract every 3 months for 1 year. The FA values were compared to normal age-matched controls.

resultsBoth patients showed linear decreases in FA values over time with R(2) values ranging from 0.93 to 0.99. The decline became statistically significant over the course of the study. Qualitative decreases in anisotropy were also evident on FA maps.

conclusionIf these trends can be validated in greater numbers of patients, DTI may serve as an objective quantitative biomarker for disease progression in patients with upper motor neuron disease.

Indexed as

AdultAmyotrophic Lateral SclerosisAnisotropyDiffusion Magnetic Resonance ImagingDisease ProgressionFasciculationFemaleHumansMaleMiddle AgedMotor Neuron DiseasePyramidal TractsRadiographyTime Factors

Identifiers

PMID19636503
OpenAlexW1806240028

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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.