Evidence map›Paper›PMID 25354190›Full record

ArticleMagnetic resonance in medicine2015

Multivendor implementation and comparison of volumetric whole-brain echo-planar MR spectroscopic imaging.

Mohammad Sabati, Sulaiman Sheriff, Meng Gu, Juan Wei, Henry Zhu, Peter B Barker, Daniel M Spielman, Jeffry R Alger, Andrew A Maudsley

Registry-linked trialAbstract read
In one paragraph

Article in Magnetic resonance in medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04233788 (Metabolic Characterization of Space Occupying Lesions of the Brain Using in Vivo MR-), which is not on this map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
–field-weighted citation impact
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.

NCT04233788 recruitingnot on this mapstarted 2021, after this paper: background citation

Metabolic Characterization of Space Occupying Lesions of the Brain Using in Vivo MR- (Spectroscopic) Imaging at 3 Tesla and 7 Tesla

TypeobservationalSponsorInsel Gruppe AG, University Hospital BernRan2021 to 2025Enrolled55ConditionsBrain Tumor, Glioma, IDH MutationArmsMR-scans using a 3T Prisma and a 7T Terra scanner (Siemens, Erlangen Germany)
3 · Its place in the literature

Who cites it

43 citing papers in PubMed.

  1. Trial
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  11. Downfield proton MRSI with whole-brain coverage at 3T.Magnetic resonance in medicine · 2023
    Article
  12. Article
  13. Article
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  15. Article
  16. Harmonization of multi-scannerFrontiers in neurology · 2022
    Review
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  18. Review
  19. Article
  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

9 authors.

Mohammad SabatiDepartment of Radiology, University of Miami, Miami, Florida, USA.
Sulaiman SheriffDepartment of Radiology, University of Miami, Miami, Florida, USA.
Meng GuDepartment of Radiology, Stanford University, Stanford, California, USA.
Juan WeiThe Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, and the F.M. Kirby Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland, USA.
Henry ZhuThe Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, and the F.M. Kirby Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland, USA.
Peter B BarkerThe Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, and the F.M. Kirby Center for Functional Brain Imaging, Kennedy Krieger Institute, Baltimore, Maryland, USA.
Daniel M SpielmanDepartment of Radiology, Stanford University, Stanford, California, USA.
Jeffry R AlgerNeurology and Radiological Sciences, University of California, Los Angeles, California, USA.
Andrew A MaudsleyDepartment of Radiology, University of Miami, Miami, Florida, USA.

Funding

PARTNERSHIP FOR MR SPECTROSCOPIC IMAGING DATA PROCESSINGR01EB000822 · NIBIB · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI MAUDSLEY, ANDREW A. · 2002 to 2012
$10.8M
Development and Maintenance of Software for MR Spectroscopic ImagingR01EB016064 · NIBIB · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI MAUDSLEY, ANDREW A. · 2013 to 2021
$2.0M
NIBIB NIH HHS R01 EB000822NIBIB NIH HHS R01EB000822NIBIB NIH HHS R01 EB016064
6 · The paper itself

Abstract

purposeTo assess volumetric proton MR spectroscopic imaging (MRSI) of the human brain on multivendor MRI instruments.

methodsEcho-planar spectroscopic imaging was developed on instruments from three manufacturers, with matched specifications and acquisition protocols that accounted for differences in sampling performance, radiofrequency (RF) power, and data formats. Intersite reproducibility was evaluated for signal-normalized maps of N-acetylaspartate (NAA), creatine (Cre), and choline using phantom and human subject measurements. Comparative analyses included metrics for spectral quality, spatial coverage, and mean values in atlas-registered brain regions.

resultsIntersite differences for phantom measurements were less than 1.7% for individual metabolites and less than 0.2% for ratio measurements. Spatial uniformity ranged from 79% to 91%. The human studies found differences of mean values in the temporal lobe, but good agreement in other white matter regions, with maximum differences relative to their mean of under 3.2%. For NAA/Cre, the maximum difference was 1.8%. In gray matter, a significant difference was observed for frontal lobe NAA. Primary causes of intersite differences were attributed to shim quality, B0 drift, and accuracy of RF excitation. Correlation coefficients for measurements at each site were over 0.60, indicating good reliability.

conclusionA volumetric intensity-normalized MRSI acquisition can be implemented in a comparable manner across multivendor MR instruments.

Indexed as

AdultBrainBrain ChemistryBrain MappingEcho-Planar ImagingFemaleHumansImage Processing, Computer-AssistedMalePhantoms, ImagingSignal Processing, Computer-AssistedYoung Adultclinical equivalencyMR spectroscopic imagingMR standardizationmulticenter studiesquantitative mapping

Identifiers

PMID25354190
PMCPMC4414683

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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.