Anatomically realistic torso model for studying the relative decay of gastric electrical and magnetic fields.

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference · 2006 · Unclear · Insufficient evidence

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UnclearInsufficient evidencePaper 3458

Study snapshot

PublicationConference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference · 2006

Study typeengineering

Reported directionUnclear

Evidence ratingInsufficient

Abstract

Non-invasive assessment of the gastro-intestinal system has not obtained widespread clinical acceptance despite the fact that the first electrogastrograms were recorded almost a century ago. One technique that is gaining acceptance for non-invasively assessing the gastrointestinal system is the recording of cutaneous electrogastrograms. It has been proposed that measurement of the gastric magnetic field (magnetogastrogram) may produce more reliable signals in the form of a vector field and also allows the signals to be obtained with non-contact sensors. In this study, an anatomically realistic torso model of the gastrointestinal system is used to investigate the relative decay of electrical and magnetic fields resulting from gastric electrical activity. Typically the electrical fields are measured on the skin surface while the magnetic fields are recorded at locations close to, but not in contact with the skin surface. This is the first study which has used a temporal and multiple dipole source model to simulate resultant electrical and magnetic fields.

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AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeengineering

Effect directionunclear

PopulationNot supplied

Sample sizeNot supplied

ExposureNot supplied

Evidence strengthInsufficientConfidence: 74% · Peer reviewed: unknown

Main findings

An anatomically realistic torso model was used to investigate the relative decay of electrical and magnetic fields produced by gastric electrical activity, comparing electrical fields measured on the skin surface with magnetic fields recorded near (but not contacting) the skin. The study reports using a temporal, multiple-dipole source model to simulate resultant electrical and magnetic fields.

Outcomes measured

Relative decay of electrical vs magnetic fields from gastric electrical activity
Simulated cutaneous electrogastrogram (electrical field) and magnetogastrogram (magnetic field) signals

Limitations

Conference proceedings format; limited methodological and results detail in abstract
No quantitative results or validation outcomes reported in the abstract
Not an EMF exposure/health-effects study; focuses on biophysical signal modeling

View raw extracted JSON

{
  "study_type": "engineering",
  "exposure": {
    "band": null,
    "source": null,
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Relative decay of electrical vs magnetic fields from gastric electrical activity",
    "Simulated cutaneous electrogastrogram (electrical field) and magnetogastrogram (magnetic field) signals"
  ],
  "main_findings": "An anatomically realistic torso model was used to investigate the relative decay of electrical and magnetic fields produced by gastric electrical activity, comparing electrical fields measured on the skin surface with magnetic fields recorded near (but not contacting) the skin. The study reports using a temporal, multiple-dipole source model to simulate resultant electrical and magnetic fields.",
  "effect_direction": "unclear",
  "limitations": [
    "Conference proceedings format; limited methodological and results detail in abstract",
    "No quantitative results or validation outcomes reported in the abstract",
    "Not an EMF exposure/health-effects study; focuses on biophysical signal modeling"
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "unknown",
  "keywords": [
    "electrogastrogram",
    "magnetogastrogram",
    "gastric electrical activity",
    "torso model",
    "dipole source model",
    "bioelectromagnetics",
    "non-invasive measurement",
    "signal decay"
  ],
  "suggested_hubs": []
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1109/iembs.2006.260201
PubMed: 17947011

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