Evidence map›Paper›PMID 26282328›Full record

ArticleNMR in biomedicine2015

Single-voxel (1)H spectroscopy in the human hippocampus at 3 T using the LASER sequence: characterization of neurochemical profile and reproducibility.

Najib Allaïli, Romain Valabrègue, Edward J Auerbach, Vincent Guillemot, Lydia Yahia-Cherif, Eric Bardinet, Maritza Jabourian, Philippe Fossati, Stéphane Lehéricy, Małgorzata Marjańska

Abstract read
In one paragraph

Article in NMR in biomedicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

18 citing papers in PubMed, 35 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Hippocampal glutamate metabolites and glial activation in clinical high risk and first episode psychosis.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
    Article
  15. Article
  16. Article
  17. Article
  18. 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

10 authors at 8 institutions in 2 countries.

Najib AllaïliInstitut du Cerveau et de la Moelle épinière - ICM, Centre de NeuroImagerie de Recherche - CENIR, Paris, France.
Romain ValabrègueInstitut du Cerveau et de la Moelle épinière - ICM, Centre de NeuroImagerie de Recherche - CENIR, Paris, France.
Edward J AuerbachCenter for Magnetic Resonance Research and Department of Radiology, University of Minnesota, MN, USA.
Vincent GuillemotINSERM U 1127, Paris, France.
Lydia Yahia-CherifInstitut du Cerveau et de la Moelle épinière - ICM, Centre de NeuroImagerie de Recherche - CENIR, Paris, France.
Eric BardinetInstitut du Cerveau et de la Moelle épinière - ICM, Centre de NeuroImagerie de Recherche - CENIR, Paris, France.
Maritza JabourianServier, France.
Philippe FossatiDepartment of Psychiatry, Groupe Hospitalier Pitié-Salpêtrière, Paris, France.
Stéphane LehéricyInstitut du Cerveau et de la Moelle épinière - ICM, Centre de NeuroImagerie de Recherche - CENIR, Paris, France.
Małgorzata MarjańskaCenter for Magnetic Resonance Research and Department of Radiology, University of Minnesota, MN, USA.
Centre National de la Recherche Scientifique · FRInserm · FRAssistance Publique – Hôpitaux de Paris · FRPitié-Salpêtrière Hospital · FRResonance Research (United States) · USServier (France) · FRSorbonne Université · FRUniversity of Minnesota · US

Funding

NMR Imaging and SpectroscopyP41EB015894 · NIBIB · UNIVERSITY OF MINNESOTA · PI UGURBIL, KAMIL · 2012 to 2017
$8.4M
Institutional Center Cores for Advanced NeuroimagingP30NS076408 · NINDS · UNIVERSITY OF MINNESOTA · PI UGURBIL, KAMIL · 2012 to 2020
$4.2M
NIBIB NIH HHS P41 EB015894NINDS NIH HHS P30 NS076408
6 · The paper itself

Abstract

The hippocampus is crucial for long-term episodic memory and learning. It undergoes structural change in aging and is sensitive to neurodegenerative and psychiatric diseases. MRS studies have seldom been performed in the hippocampus due to technical challenges. The reproducibility of MRS in the hippocampus has not been evaluated at 3 T. The purpose of the present study was to quantify the concentration of metabolites in a small voxel placed in the hippocampus and evaluate the reproducibility of the quantification. Spectra were measured in a 2.4 mL voxel placed in the left hippocampus covering the body and most of the tail of the structure in 10 healthy subjects across three different sessions and quantified using LCModel. High-quality spectra were obtained, which allowed a reliable quantification of 10 metabolites including glutamate and glutamine. Reproducibility of MRS was evaluated with coefficient of variation, standard errors of measurement, and intraclass correlation coefficients. All of these measures showed improvement with increased number of averages. Changes of less than 5% in concentration of N-acetylaspartate, choline-containing compounds, and total creatine and of less than 10% in concentration of myo-inositol and the sum of glutamate and glutamine can be confidently detected between two measurements in a group of 20 subjects. A reliable and reproducible neurochemical profile of the human hippocampus was obtained using MRS at 3 T in a small hippocampal volume.

Indexed as

AdultAspartic AcidCholineCreatineFeasibility StudiesFemaleGlutamic AcidGlutamineHippocampusHumansLactatesMagnetic Resonance SpectroscopyMaleReference ValuesReproducibility of ResultsSensitivity and SpecificityAspartic AcidCholineCreatineGlutamic AcidGlutamineLactatesN-acetylaspartate3 TCVglutamateglutaminehippocampusICCMRS reproducibilitysensitivity

Identifiers

PMID26282328
PMCPMC4573920
OpenAlexW2146698818

What OpenQuestion holds

Textmetadata
LicenceTDM
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.