Evidence map›Paper›PMID 17210628›Full record

ArticleJournal of neurology, neurosurgery, and psychiatry2007

Dynamic changes in corticospinal tracts after stroke detected by fibretracking.

M Møller, J Frandsen, G Andersen, A Gjedde, P Vestergaard-Poulsen, L Østergaard

Open access · greenAbstract read
In one paragraph

Article in Journal of neurology, neurosurgery, and psychiatry, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 1 pooled it
9.0field-weighted citation impact, top 2% 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

52 citing papers in PubMed, 1 synthesis or guideline pooled it, 117 citations in OpenAlex.

  1. Pooled it
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  9. Neural bases characterizing chronic and severe upper-limb motor deficits after brain lesion.Journal of neural transmission (Vienna, Austria : 1996) · 2023
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  19. Brain networks and their relevance for stroke rehabilitation.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2019
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

M MøllerCentre of Functionally Integrative Neuroscience, Aarhus University, Denmark. moller@pet.auh.dk
J Frandsen
G Andersen
A Gjedde
P Vestergaard-Poulsen
L Østergaard
Aarhus University · DKAarhus University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsThe integrity of motor pathways and functional connectivity patterns are important in assessing plastic changes related to successful recovery, to obtain prognostic information and to monitor future therapeutic strategies of stroke patients. We tested the following hypotheses: (1) that changes in axonal integrity along the corticospinal tract after stroke can be detected as a reduction in fractional anisotropy; and (2) that sustained low fractional anisotropy is indicative of axonal loss and therefore is correlated with poor motor outcome, as measured by specific neurological motor scores.

methodsWe developed a segmentation tool based on magnetic resonance diffusion tensor imaging in conjunction with three dimensional fibretracking for longitudinal studies of the corticospinal tract, and used specific neurological motor scores to test the hypotheses in five stroke patients within the first week and 30 and 90 days after the stroke.

resultsReduction in fractional anisotropy within the first weeks after stroke reflected a decline in axonal integrity, leading to Wallerian degeneration, and demonstrated a correlation between the temporal evolution of fractional anisotropy and motor function in patients with poor motor outcome.

conclusionThe study demonstrated the feasibility of fibretracking as a segmentation tool for mapping distal parts of the corticospinal motor pathways and showed that fractional anisotropy in the segmented corticospinal tract is a sensitive measure of structural changes after stroke.

Indexed as

AnisotropyDiffusion Magnetic Resonance ImagingAgedAxonsCerebral InfarctionDiagnostic Techniques, NeurologicalFeasibility StudiesFemaleHumansLongitudinal StudiesMaleMiddle AgedNerve DegenerationPyramidal TractsTime FactorsWallerian Degeneration

Identifiers

PMID17210628
PMCPMC2077935
OpenAlexW2172062830

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.