Evidence map›Paper›PMID 29205635›Full record

ArticleJournal of neuroimaging : official journal of the American Society of Neuroimaging2018

Cerebral White Matter Maturation Patterns in Preterm Infants: An MRI T2 Relaxation Anisotropy and Diffusion Tensor Imaging Study.

Michael J Knight, Adam Smith-Collins, Sarah Newell, Mark Denbow, Risto A Kauppinen

Open access · greenAbstract read
In one paragraph

Article in Journal of neuroimaging : official journal of the American Society of Neuroimaging, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

20 citing papers in PubMed, 33 citations in OpenAlex.

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  18. The Role of Diffusion Tensor Imaging in Detecting Hippocampal Injury Following Neonatal Hypoxic-Ischemic Encephalopathy.Journal of neuroimaging : official journal of the American Society of Neuroimaging · 2019
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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

5 authors at 4 institutions in 1 country.

Michael J KnightSchool of Experimental Psychology, University of Bristol, UK.
Adam Smith-CollinsClinical Research and Imaging Centre, University of Bristol, UK.
Sarah NewellFetal Medicine Unit, St Michael's Hospital, University Hospitals Bristol NHS Foundation Trust, UK.
Mark DenbowFetal Medicine Unit, St Michael's Hospital, University Hospitals Bristol NHS Foundation Trust, UK.
Risto A KauppinenSchool of Experimental Psychology, University of Bristol, UK.
St Michaels Hospital · GBNIHR Bristol Biomedical Research Centre · GBSt Michael's Hospital · GBUniversity of Bristol · GB

Funding

The Dunhill Medical Trust R385/1114Wellcome TrustWellcome Trust 105612/Z/14/Z
6 · The paper itself

Abstract

background and purposePreterm birth is associated with worse neurodevelopmental outcome, but brain maturation in preterm infants is poorly characterized with standard methods. We evaluated white matter (WM) of infant brains at term-equivalent age, as a function of gestational age at birth, using multimodal magnetic resonance imaging (MRI).

methodsInfants born very preterm (<32 weeks gestation) and late preterm (33-36 weeks gestation) were scanned at 3 T at term-equivalent age using diffusion tensor imaging (DTI) and T2 relaxometry. MRI data were analyzed using tract-based spatial statistics, and anisotropy of T2 relaxation was also determined. Principal component analysis and linear discriminant analysis were applied to seek the variables best distinguishing very preterm and late preterm groups.

resultsAcross widespread regions of WM, T2 is longer in very preterm infants than in late preterm ones. These effects are more prevalent in regions of WM that myelinate earlier and faster. Similar effects are obtained from DTI, showing that fractional anisotropy (FA) is lower and radial diffusivity higher in the very preterm group, with a bias toward earlier myelinating regions. Discriminant analysis shows high sensitivity and specificity of combined T2 relaxometry and DTI for the detection of a distinct WM development pathway in very preterm infants. T2 relaxation is anisotropic, depending on the angle between WM fiber and magnetic field, and this effect is modulated by FA.

conclusionsCombined T2 relaxometry and DTI characterizes specific patterns of retarded WM maturation, at term equivalent age, in infants born very preterm relative to late preterm.

Indexed as

AnisotropyBrainDiffusion Tensor ImagingFemaleGestational AgeHumansInfantInfant, NewbornInfant, PrematureMagnetic Resonance ImagingMaleWhite Matterdiffusion tensor imagingMRIpreterm birthT2 relaxometrywhite matter

Identifiers

PMID29205635
PMCPMC5764128
OpenAlexW2772218458

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Registered trials

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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.