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Abstract #1451

Assessment of Peripheral Nerve Stimulation due to MR gradient induced Electric Field around Implantable Device

Xiyao Xin1, Xi Lin Chen1, Xin Huang1, and Shiloh Sison1

1Abbott, Sylmar, CA, United States

Time varying magnetic gradient fields can induce electric field (E-field) in the human body and may cause peripheral nerve stimulation (PNS) during MR scan. As metallic implant may cause local E-field enhancement, there is speculation that it may increase risk of PNS. In this study, gradient coil modeling is used to investigate induced E-fields around implantable devices. The maximum E-field in the proximity of implants is compared to the whole body maximum E-field of the human body without implant. The result shows that the local enhanced E-field near implants does not exceed the whole body maximum E-field in human body.

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