Evidence map›Paper›PMID 25408107›Full record

ArticleMagma (New York, N.Y.)2015

Automatic voxel positioning for MRS at 7 T.

Weiqiang Dou, Oliver Speck, Thomas Benner, Jörn Kaufmann, Meng Li, Kai Zhong, Martin Walter

Abstract read
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In one paragraph

Article in Magma (New York, N.Y.), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing 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.

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

19 citing papers in PubMed.

  1. Trial
  2. Default mode network connectivity change corresponds to ketamine's delayed glutamatergic effects.European archives of psychiatry and clinical neuroscience · 2020
    Trial
  3. Temporal Dynamics of Antidepressant Ketamine Effects on Glutamine Cycling Follow Regional Fingerprints of AMPA and NMDA Receptor Densities.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2017
    Trial
  4. A Fast and Precise Method to Search for Desirable Rectangular Tumor Regions in Brain MR Images.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2026
    Article
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  12. Advanced single voxelNMR in biomedicine · 2020
    Article
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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

7 authors.

Weiqiang DouFaculty for Natural Sciences, Biomedical Magnetic Resonance, Otto-von-Guericke University, ZENIT Building, Leipziger Str. 44, 39120, Magdeburg, Germany.
Oliver Speck
Thomas Benner
Jörn Kaufmann
Meng Li
Kai Zhong
Martin Walter

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectThe purpose of this study was to test, for the first time, whether spectroscopy voxels could be positioned automatically with high accuracy and reproducibility in ultrahigh-field longitudinal magnetic resonance spectroscopy (MRS) studies. MATERIALS AND

methodsMRS voxels were automatically positioned in two cingulate subregions of 12 healthy subjects using a vendor-provided automatic voxel positioning (AutoAlign) technique, and were manually placed in the same regions of 10 healthy subjects by an experienced technician in three 7 T MRS scan sessions. Different coils were used for manual (24-channel coil) and automatic (32-channel coil) voxel placement, and the effects of signal-to-noise-ratio differences on the spectra were considered.

resultsOver three scan sessions and two regions scanned for each subject, a mean voxel geometric overlap ratio of 0.91 for automatic positioning reflected accurate voxel alignment, while the geometric overlap ratio was only 0.70 for voxels placed manually. Comparable voxel positions among the three scan sessions (p > 0.05) indicated high reproducibility of automatic voxel alignment. In comparison, significant voxel displacement among scan sessions (p < 0.05) was found using manual voxel positioning.

conclusionsIn view of the highly accurate and reproducible voxel alignment with automatic voxel positioning, we propose the application of automatic rather than manual voxel positioning in future ultrahigh-field longitudinal MRS studies.

Indexed as

Subtraction TechniqueAdultFemaleGyrus CinguliHumansImage EnhancementImaging, Three-DimensionalMagnetic Resonance ImagingMagnetic Resonance SpectroscopyMaleMolecular ImagingPattern Recognition, AutomatedReproducibility of ResultsSensitivity and Specificity

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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.