Evidence map›Paper›PMID 24331847›Full record

ArticleEuropean journal of radiology2014

Clinical protocols for ³¹P MRS of the brain and their use in evaluating optic pathway gliomas in children.

Jan Novak, Martin Wilson, Lesley Macpherson, Theodoros N Arvanitis, Nigel P Davies, Andrew C Peet

Open access · hybridAbstract read
In one paragraph

Article in European journal of radiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 35% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Brain lactate and pH in schizophrenia and bipolar disorder: a systematic review of findings from magnetic resonance studies.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
    Pooled it
  2. Article
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  7. 3DNMR in biomedicine · 2021
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  11. Phosphocreatine Levels in the Left Thalamus Decline during Wakefulness and Increase after a Nap.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
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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.

Jan NovakSchool of Cancer Sciences, University of Birmingham, Birmingham, United Kingdom; Birmingham Children's Hospital, Birmingham, United Kingdom. Electronic address: j.novak@bham.ac.uk.
Martin WilsonSchool of Cancer Sciences, University of Birmingham, Birmingham, United Kingdom; Birmingham Children's Hospital, Birmingham, United Kingdom. Electronic address: martin@pipegrep.co.uk.
Lesley MacphersonBirmingham Children's Hospital, Birmingham, United Kingdom. Electronic address: lesley.macpherson@bch.nhs.uk.
Theodoros N ArvanitisBirmingham Children's Hospital, Birmingham, United Kingdom; School of Electronic, Electrical and Computer Engineering, University of Birmingham, Birmingham, United Kingdom. Electronic address: t.arvanitis@bham.ac.uk.
Nigel P DaviesSchool of Cancer Sciences, University of Birmingham, Birmingham, United Kingdom; Birmingham Children's Hospital, Birmingham, United Kingdom; University Hospitals Birmingham NHS Foundation Trust, Medical Physics RRPPS, Birmingham, United Kingdom. Electronic address: nigel.davies@nhs.net.
Andrew C PeetSchool of Cancer Sciences, University of Birmingham, Birmingham, United Kingdom; Birmingham Children's Hospital, Birmingham, United Kingdom. Electronic address: a.peet@bham.ac.uk.
University of Birmingham · GBBirmingham Children's Hospital · GB

Funding

Cancer Research UK 10342Department of Health C7809/A10342Department of Health HCS/08/036Department of Health NIHR-RP-02-12-019Medical Research Council
6 · The paper itself

Abstract

introductionIn vivo (31)P Magnetic Resonance Spectroscopy (MRS) measures phosphorus-containing metabolites that play an essential role in many disease processes. An advantage over (1)H MRS is that total choline can be separated into phosphocholine and glycerophosphocholine which have opposite associations with tumour grade. We demonstrate (31)P MRS can provide robust metabolic information on an acceptable timescale to yield information of clinical importance.

methodsAll MRI examinations were carried out on a 3T whole body scanner with all (31)P MRS scans conducted using a dual-tuned (1)H/(31)P head coil. Once optimised on phantoms, the protocol was tested in six healthy volunteers (four male and two female, mean age: 25±2.7). (31)P MRS was then implemented on three children with optic pathway gliomas.

results(31)P MRS on volunteers showed that a number of metabolite ratios varied significantly (p<0.05 ANOVA) across different structures of the brain, whereas PC/GPC did not. Standard imaging showed the optic pathway gliomas were enhancing on T1-weighted imaging after contrast injection and have high tCho on (1)H MRS, both of which are associated with high grade lesions. (31)P MRS showed the phosphocholine/glycerophosphocholine ratio to be low (<0.6) which suggests low grade tumours in keeping with their clinical behaviour and the histology of most biopsied optic pathway gliomas.

conclusion(31)P MRS can be implemented in the brain as part of a clinical protocol to provide robust measurement of important metabolites, in particular providing a greater understanding of cases where tCho is raised on (1)H MRS.

Indexed as

AdultAnalysis of VarianceBiomarkers, TumorBrainChild, PreschoolCholineFemaleGliomaHumansMagnetic Resonance SpectroscopyMaleOptic Nerve NeoplasmsPhosphorus IsotopesProtonsRadiopharmaceuticalsReproducibility of ResultsBiomarkers, TumorCholinePhosphorus IsotopesProtonsRadiopharmaceuticalsChemical shift imagingFunctionalMRIMR spectroscopy

Identifiers

PMID24331847
PMCPMC4029084
OpenAlexW2031103319

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.