Evidence map›Paper›PMID 30735859›Full record

SynthesisNeuroImage. Clinical2019

Arterial spin labelling and diffusion-weighted imaging in paediatric brain tumours.

Patrick W Hales, Felice d'Arco, Jessica Cooper, Josef Pfeuffer, Darren Hargrave, Kshitij Mankad, Chris Clark

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in NeuroImage. Clinical, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 6% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 48 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Primary diffuse leptomeningeal atypical teratoid/rhabdoid tumours (ATRT) of childhood: a molecularly characterised case report and literature review.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2025
    Review
  6. Article
  7. Review
  8. Review
  9. Multiparametric simultaneous hybridQuantitative imaging in medicine and surgery · 2024
    Article
  10. Article
  11. Article
  12. Arterial Spin Labeling for Pediatric Central Nervous System Diseases: Techniques and Clinical Applications.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2023
    Article
  13. Review
  14. Review
  15. Review
  16. Article
  17. Article
  18. Observational
  19. MRI biomarkers in neuro-oncology.Nature reviews. Neurology · 2021
    Review
  20. 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 3 institutions in 2 countries.

Patrick W HalesDevelopmental Imaging & Biophysics Section, UCL Great Ormond Street Institute of Child Health, London WC1N 1EH, United Kingdom. Electronic address: p.hales@ucl.ac.uk.
Felice d'ArcoGreat Ormond Street Children's Hospital, Great Ormond St, London WC1N 3JH, United Kingdom.
Jessica CooperGreat Ormond Street Children's Hospital, Great Ormond St, London WC1N 3JH, United Kingdom.
Josef PfeufferSiemens Healthcare GmbH, MR Application Development, Erlangen, Germany.
Darren HargraveGreat Ormond Street Children's Hospital, Great Ormond St, London WC1N 3JH, United Kingdom.
Kshitij MankadGreat Ormond Street Children's Hospital, Great Ormond St, London WC1N 3JH, United Kingdom.
Chris ClarkDevelopmental Imaging & Biophysics Section, UCL Great Ormond Street Institute of Child Health, London WC1N 1EH, United Kingdom.
University College London · GBGreat Ormond Street Hospital · GBSiemens Healthcare (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDiffusion- and perfusion-weighted MRI are valuable tools for measuring the cellular and vascular properties of brain tumours. This has been well studied in adult patients, however, the biological features of childhood brain tumours are unique, and paediatric-focused studies are less common. We aimed to assess the diagnostic utility of apparent diffusion coefficient (ADC) values derived from diffusion-weighted imaging (DWI) and cerebral blood flow (CBF) values derived from arterial spin labelling (ASL) in paediatric brain tumours.

methodsWe performed a meta-analysis of published studies reporting ADC and ASL-derived CBF values in paediatric brain tumours. Data were combined using a random effects model in order to define typical parameter ranges for different histological tumour subtypes and WHO grades. New data were also acquired in a 'validation cohort' at our institution, in which ADC and CBF values in treatment naïve paediatric brain tumour patients were measured, in order to test the validity of the findings from the literature in an un-seen cohort. ADC and CBF quantification was performed by two radiologists via manual placement of tumour regions of interest (ROIs), in addition to an automated approach to tumour ROI placement.

resultsA total of 14 studies met the inclusion criteria for the meta-analysis, constituting data acquired in 542 paediatric patients. Parameters of interest were based on measurements from ROIs placed within the tumour, including mean and minimum ADC values (ADC

conclusionADC and CBF values are useful for differentiating certain histological subtypes, and separating low- and high-grade paediatric brain tumours. The threshold values presented here are in agreement with previously published studies, as well as a new patient cohort. If ADC and CBF values acquired in the same tumour are combined, the diagnostic accuracy is optimised.

Indexed as

Cerebrovascular CirculationAdolescentBrain NeoplasmsChildChild, PreschoolDiffusion Magnetic Resonance ImagingFemaleHumansInfantMaleNeuroimagingSpin LabelsSpin LabelsArterial spin labelingBrain tumourDiffusion-weighting imagingPaediatrics

Identifiers

PMID30735859
PMCPMC6365981
OpenAlexW2914028454

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.