Scattering of the MRI field at 1.5T by a Vagus Nerve Stimulation implant

Scattering of the MRI field at 1.5T by a Vagus Nerve Stimulation implant

We have investigated the scattering of the magnetic resonance imaging (MRI) RF electromagnetic field by implants for vagus nerve stimulation (VNS) therapy using the finite element method to perform full 3-D realistic simulations. For an implanted VNS lead, we calculated the RF scattered field and th...

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Bibliographische Detailangaben
Hauptverfasser: Mohsin, S.A., Saeed, U., Nyenhuis, J., Sheikh, N.M.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Electrodes
Finite element methods
Heating
Lead
Magnetic resonance imaging
Temperature distribution
Wire
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Beschreibung
Zusammenfassung:We have investigated the scattering of the magnetic resonance imaging (MRI) RF electromagnetic field by implants for vagus nerve stimulation (VNS) therapy using the finite element method to perform full 3-D realistic simulations. For an implanted VNS lead, we calculated the RF scattered field and the heat equation was solved using an FEM tool to find the temperature rise. Current distributions in the twin-strand lead, specific absorption rate (SAR) and temperature rise distributions are presented.
ISSN:1522-3965
1947-1491
DOI:10.1109/APS.2008.4619677