Evidence map›Paper›PMID 30105622›Full record

ArticleNeuroradiology2018

Magnetic resonance spectroscopy in very preterm-born children at 4 years of age: developmental course from birth and outcomes.

M J Taylor, M M Vandewouw, J M Young, D Card, J G Sled, M M Shroff, C Raybaud

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In one paragraph

Article in Neuroradiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 2 pooled it
2.5field-weighted citation impact, top 10% 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

5 citing papers in PubMed, 2 syntheses or guidelines pooled it, 7 citations in OpenAlex.

  1. The neuroradiology journal · 2022
    Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. 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

7 authors at 2 institutions in 1 country.

M J TaylorDiagnostic Imaging, Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada. margot.taylor@sickkids.ca.ORCID http://orcid.org/0000-0002-3534-9750
M M VandewouwDiagnostic Imaging, Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada.
J M YoungDiagnostic Imaging, Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada.
D CardDiagnostic Imaging, Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada.
J G SledTranslational Medicine, Research Institute, Hospital for Sick Children, Toronto, Canada.
M M ShroffDiagnostic Imaging, Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada.
C RaybaudDiagnostic Imaging, Hospital for Sick Children, 555 University Avenue, Toronto, ON, M5G 1X8, Canada.
University of Toronto · CAHospital for Sick Children · CA

Funding

Canadian Institutes of Health Research MOP-137115Canadian Institutes of Health Research MOP-84399
6 · The paper itself

Abstract

purposeBrain metabolites show very rapid maturation over infancy, particularly following very preterm (VPT) birth, and can provide an index of brain injury. The utility of magnetic resonance imaging (MRS, magnetic resonance spectroscopy) in predicting outcome in VPT-born infants is largely limited to 2-year outcomes. We examined the value of MRS in VPT followed longitudinally to 4 years.

methodsMRS datasets were acquired in 45 VPT infants (< 32 weeks gestational age) longitudinally: at birth, at term-equivalent and at 4 years of age. Using LCModel analyses in a basal ganglia voxel, we investigated metabolite ratios as a function of age, brain injury and outcome. We also studied a full-term (FT) cohort at 4 years and compared group differences with outcome.

resultsWe found significant age-related changes in many brain metabolites in infancy, including phosphocreatine (CR)/phosphocholine (CHO), N-acetylaspartylglutamate (NAA)/CHO, myoinositol (INS)/CHO and INS/CR; there were no significant MRS differences between VPT and FT groups at 4 years of age, or differences at 4 years as a function of early brain injury or outcome. The rate of change in metabolite ratios from VPT birth to term-equivalent age did not predict outcome in the VPT children at 4 years.

conclusionBrain metabolite ratios measured in VPT-born infants have shown associations with short-term outcomes, but these correlations did not extend to early childhood nor predict cognitive sequelae. The most frequently reported poor outcome in VPT-born children is cognitive difficulties starting at early school age. MRS metrics early in the infant's life do not appear to predict these longer-term outcomes.

Indexed as

Infant, Extremely PrematureAspartic AcidBrainChild, PreschoolCholineCreatineFemaleHumansInfant, NewbornInositolLongitudinal StudiesMagnetic Resonance SpectroscopyMaleAspartic AcidCholineCreatineInositolN-acetylaspartateChildrenInfantsMRSOutcomeVery preterm born

Identifiers

PMID30105622
OpenAlexW2887224549

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.