Evidence map›Paper›PMID 23355446›Full record

ArticleNMR in biomedicine2013

Magnetic resonance imaging of time-varying magnetic fields from therapeutic devices.

Luis Hernandez-Garcia, Vivek Bhatia, Krishan Prem-Kumar, Magnus Ulfarsson

Erratum issuedAbstract read
In one paragraph

Article in NMR in biomedicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

4 authors.

Luis Hernandez-GarciaFMRI Laboratory, 2360 Bonisteel Blvd., Ann Arbor, MI 48109-2108, USA.
Vivek Bhatia
Krishan Prem-Kumar
Magnus Ulfarsson

Funding

Dosimetry and improved targeting for Transcranial Magnetic StimulationR21NS058691 · NINDS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI HERNANDEZ-GARCIA, LUIS · 2008 to 2009
$363k
NINDS NIH HHS NS058691NINDS NIH HHS R21 NS058691
6 · The paper itself

Abstract

While magnetic resonance imaging of static magnetic fields generated by external probes has been previously demonstrated, there is an unmet need to image time-varying magnetic fields such as those generated by transcranial magnetic stimulators and radiofrequency hyperthermia probes. A method to image such time-varying magnetic fields is introduced in this study. This article presents the theory behind the method and provides proof of concept by imaging time-varying magnetic fields generated by a figure-eight coil inside simple phantoms over a range of frequencies and intensities using a 7T small animal MRI scanner. The method was able to reconstruct the three-dimensional components of the oscillating magnetic field vector.

Indexed as

Magnetic FieldsRadiofrequency TherapyHumansMagnetic Resonance ImagingPhantoms, ImagingTime FactorsTranscranial Magnetic Stimulation

Identifiers

PMID23355446
PMCPMC3645268

What OpenQuestion holds

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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.