Evidence map›Paper›PMID 34106749›Full record

SynthesisThe British journal of radiology2021

Cerebral and tumoral blood flow in adult gliomas: a systematic review of results from magnetic resonance imaging.

Mueez Waqar, Daniel Lewis, Erjon Agushi, Matthew Gittins, Alan Jackson, David Coope

Open access · hybridAbstract readSystematic Review
In one paragraph

Synthesis in The British journal of radiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 19% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. Pooled it
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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

6 authors at 2 institutions in 1 country.

Mueez WaqarDivision of Informatics, Imaging and Data Sciences, Wolfson Molecular Imaging Centre, Manchester, UK.ORCID https://orcid.org/0000-0002-7848-6237
Daniel LewisDivision of Informatics, Imaging and Data Sciences, Wolfson Molecular Imaging Centre, Manchester, UK.
Erjon AgushiDivision of Informatics, Imaging and Data Sciences, Wolfson Molecular Imaging Centre, Manchester, UK.
Matthew GittinsDepartment of Biostatistics, Division of Population Health, Health Services Research& Primary Care, The University of Manchester, Manchester, UK.
Alan JacksonDivision of Informatics, Imaging and Data Sciences, Wolfson Molecular Imaging Centre, Manchester, UK.
David CoopeDepartment of Neurosurgery, Salford Royal NHS Foundation Trust, Salford, UK.
Salford Royal NHS Foundation Trust · GBManchester Academic Health Science Centre · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveBlood flow is the rate of blood movement and relevant to numerous processes, though understudied in gliomas. The aim of this review was to pool blood flow metrics obtained from MRI modalities in adult supratentorial gliomas.

methodsMEDLINE, EMBASE and the Cochrane database were queried 01/01/2000-31/12/2019. Studies measuring blood flow in adult Grade II-IV supratentorial gliomas using dynamic susceptibility contrast (DSC) MRI, dynamic contrast enhanced MRI (DCE-MRI) or arterial spin labelling (ASL) were included. Absolute and relative cerebral blood flow (CBF), peritumoral blood flow and tumoral blood flow (TBF) were reported.

results34 studies were included with 1415 patients and 1460 scans. The mean age was 52.4 ± 7.3 years. Most patients had glioblastoma (

conclusionOur findings demonstrate that increased mass effect from high-grade gliomas impairs blood flow within the surrounding brain that can improve with surgery. ADVANCES IN KNOWLEDGE: This systematic review demonstrates how mass effect from brain tumours impairs blood flow in the surrounding brain parenchyma that can improve with treatment.

Indexed as

Cerebrovascular CirculationAdultBrainBrain NeoplasmsGliomaHumansMagnetic Resonance ImagingNeoplasm Grading

Identifiers

PMID34106749
PMCPMC9327770
OpenAlexW3167787234

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.