Variation of radio frequency induced power deposition due to second surrounding tissue.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2016 · Unclear · Insufficient evidence

← Research stream
UnclearInsufficient evidencePaper 2886

RF-induced power deposition generated by insulated leads depended substantially on the electrical properties of two surrounding tissues. When both surrounding regions were modeled as the same tissue (single-tissue setup), results differed from the two-tissue …

Study snapshot

PublicationAnnual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2016
Study typeengineering
Reported directionUnclear
Evidence ratingInsufficient

Abstract

We investigated RF-induced power deposition (p) generated by insulated leads with different lengths located in proximity to two tissues. The first tissue surrounding the leads was shaped as a cylinder with a diameter of 11 mm and located in a very large box filled with the second tissue. Lead electromagnetic models and p substantially depended on electrical properties of both tissues. If the cylinder and the box were filled with the same tissue, discrepancy to results of the two-tissue setup was up to 280%.

Machine Enhanced Logic

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
ExposureRF
Evidence strengthInsufficientConfidence: 74% · Peer reviewed: yes

Main findings

RF-induced power deposition generated by insulated leads depended substantially on the electrical properties of two surrounding tissues. When both surrounding regions were modeled as the same tissue (single-tissue setup), results differed from the two-tissue setup by up to 280%.

Outcomes measured

  • RF-induced power deposition (p) near insulated leads
  • Dependence of lead electromagnetic models on surrounding tissue electrical properties

Limitations

  • Frequency and exposure parameters were not reported in the abstract.
  • No biological/clinical outcomes were described; focus was on modeling/power deposition.
  • Sample size and whether results are experimental or purely computational are not specified in the abstract.
View raw extracted JSON
{
  "study_type": "engineering",
  "exposure": {
    "band": "RF",
    "source": "other",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "RF-induced power deposition (p) near insulated leads",
    "Dependence of lead electromagnetic models on surrounding tissue electrical properties"
  ],
  "main_findings": "RF-induced power deposition generated by insulated leads depended substantially on the electrical properties of two surrounding tissues. When both surrounding regions were modeled as the same tissue (single-tissue setup), results differed from the two-tissue setup by up to 280%.",
  "effect_direction": "unclear",
  "limitations": [
    "Frequency and exposure parameters were not reported in the abstract.",
    "No biological/clinical outcomes were described; focus was on modeling/power deposition.",
    "Sample size and whether results are experimental or purely computational are not specified in the abstract."
  ],
  "evidence_strength": "insufficient",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "radiofrequency",
    "power deposition",
    "insulated leads",
    "tissue electrical properties",
    "two-tissue model",
    "electromagnetic modeling"
  ],
  "suggested_hubs": []
}
AI can be wrong. Always verify against the paper.

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/embc.2016.7591803
PubMed: 28269346

Read the original paper →

Related papers

← Back to the Research Library