Evidence map›Paper›PMID 23055387›Full record

ArticleJournal of magnetic resonance imaging : JMRI2013

Two-dimensional J-resolved proton MR spectroscopy and prior knowledge fitting (ProFit) in the frontal and parietal lobes of healthy volunteers: assessment of metabolite discrimination and general reproducibility.

Andrew P Prescot, Perry F Renshaw

Registry-linked trialOpen access · bronzeAbstract read
In one paragraph

Article in Journal of magnetic resonance imaging : JMRI, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03220776 (Imaging Framework for Testing GABAergic/Glutamatergic Drugs in Bipolar Alcoholics), which is not on this map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 23% 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.

NCT03220776 phase2completednot on this mapstarted 2017, after this paper: background citation

Imaging Framework for Testing GABAergic/Glutamatergic Drugs in Bipolar Alcoholics

TypeinterventionalSponsorMedical University of South CarolinaRan2017 to 2022Enrolled54ConditionsAlcohol Use Disorder, Bipolar DisorderArmsN-Acetylcysteine, Gabapentin, Placebo Oral Tablet
3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. In Vivo Detection of CPP-115 Target Engagement in Human Brain.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
    Trial
  4. Article
  5. Article
  6. Article
  7. Glutamate measurements using edited MRS.Magnetic resonance in medicine · 2024
    Article
  8. Article
  9. Article
  10. An evaluation of the reproducibility ofMagnetic resonance imaging · 2020
    Article
  11. Article
  12. Article
  13. Article
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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

2 authors at 1 institution in 1 country.

Andrew P PrescotBrain Institute, Department of Radiology, University of Utah School of Medicine, Salt Lake City, Utah 84108, USA. andrew.prescot@utah.edu
Perry F Renshaw
University of Utah · US

Funding

MENTORING IN DRUG ABUSE NEUROIMAGINGK24DA015116 · NIDA · UNIVERSITY OF UTAH · PI RENSHAW, PERRY FRANKLIN · 2002 to 2010
$1.3M
Mentoring in Drug Abuse NeuroimagingK05DA031247 · NIDA · UNIVERSITY OF UTAH · PI RENSHAW, PERRY FRANKLIN · 2011 to 2015
$661k
NIDA NIH HHS K05 DA031247NIDA NIH HHS K24 DA015116NIDA NIH HHS K24DA015116
6 · The paper itself

Abstract

purposeTo investigate human brain metabolite discriminability and general measurement reproducibility of two-dimensional (2D) J-resolved (1)H MRS and Prior Knowledge Fitting (ProFit). MATERIALS AND

methods2D J-resolved (1)H MRS spectra were acquired from the anterior cingulate cortex (ACC) and the parietal-occipital cortex (POC) of 10 healthy subjects at a magnetic field strength of 2.9 Tesla. Amplitude correlation matrices were constructed for each subject and brain region to assess metabolite discriminability. ProFit-estimated metabolite peak areas were normalized to a water reference signal, and intra- and inter-subject reproducibility was evaluated.

resultsFavorable between-metabolite correlation coefficients (<20%) were observed for a range of metabolites. Lower correlation coefficients between a given pair of metabolite estimates were consistently observed for POC metabolites. The group mean correlation coefficient existing between glutamate and glutamine was calculated as -18% and -13% for ACC and POC, respectively. Most ACC and POC metabolites showed intra- and inter-subject CV values of <15% and <20%, respectively.

conclusionThe observed Glu and Gln signal discrimination makes these techniques suitable for investigating a variety of psychiatric disorders. Intra- and inter-subject metabolite level reproducibility was comparable to the existing literature findings. These data serve as a valuable benchmark for assessing future modifications to 2D (1)H MRS data acquisition and ProFit analysis.

Indexed as

AdultBrainBrain MappingElectromagnetic FieldsFemaleFrontal LobeGlutamic AcidGlutamineGyrus CinguliHumansImage Processing, Computer-AssistedMagnetic Resonance SpectroscopyMaleModels, StatisticalParietal LobeReproducibility of ResultsGlutamic AcidGlutamine

Identifiers

PMID23055387
PMCPMC4657454
OpenAlexW2029561173

What OpenQuestion holds

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Registered trials

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.