Evidence map›Paper›PMID 24728667›Full record

ArticleMedical & biological engineering & computing2014

The movement of a nerve in a magnetic field: application to MRI Lorentz effect imaging.

Bradley J Roth, Adam Luterek, Steffan Puwal

Open access · greenAbstract read
In one paragraph

Article in Medical & biological engineering & computing, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.3field-weighted citation impact, top 19% 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

8 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Article
  3. Can MRI Be Used as a Sensor to Record Neural Activity?Sensors (Basel, Switzerland) · 2023
    Review
  4. Magneto-acoustic imaging by continuous-wave excitation.Medical & biological engineering & computing · 2017
    Article
  5. Article
  6. Article
  7. Article
  8. 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

3 authors at 1 institution in 1 country.

Bradley J RothDepartment of Physics, Oakland University, Rochester, MI, 48309, USA, roth@oakland.edu.
Adam Luterek
Steffan Puwal
Oakland University · US

Funding

Magneto-Acoustic Effects in ImagingR01EB008421 · NIBIB · OAKLAND UNIVERSITY · PI ROTH, BRADLEY JOHN · 2008 to 2011
$554k
NIBIB NIH HHS R01 EB008421NIBIB NIH HHS R01EB008421
6 · The paper itself

Abstract

Direct detection of neural activity with MRI would be a breakthrough innovation in brain imaging. A Lorentz force method has been proposed to image nerve activity using MRI; a force between the action currents and the static MRI magnetic field causes the nerve to move. In the presence of a magnetic field gradient, this will cause the spins to precess at a different frequency, affecting the MRI signal. Previous mathematical modeling suggests that this effect is too small to explain the experimental data, but that model was limited because the action currents were assumed to be independent of position along the nerve and because the magnetic field was assumed to be perpendicular to the nerve. In this paper, we calculate the nerve displacement analytically without these two assumptions. Using realistic parameter values, the nerve motion is <5 nm, which induced a phase shift in the MRI signal of <0.02°. Therefore, our results suggest that Lorentz force imaging is beyond the capabilities of current technology.

Indexed as

Electromagnetic FieldsModels, NeurologicalAction PotentialsAxonsElectric ConductivityMagnetic Resonance Imaging

Identifiers

PMID24728667
PMCPMC4035360
OpenAlexW2092608424

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.