Abstract #4317

An Accurate Electromagnetic Field Model for Optimization and Selection of Intravascular Multimode Coil Geometry

Madhav Venkateswaran¹, Samuel A. Hurley², Alexey Samsanov³, Peng Wang³, Orhan Unal³, Krishna N. Kurpad⁴

¹Electrical and Computer Engineering, University of Wisconsin, Madison, WI, United States; ²Medical Physics, University of Wisconsin-Madison, Madison, WI, United States; ³Medical Physics, University of Wisconsin, Madison, WI, United States; ⁴Radiology, University of Wisconsin, Madison, WI, United States

This abstract proposes a robust simulation methodology to model interventional RF coils under actual MR scanning conditions. The Finite Element Method (FEM) simulation technique has been experimentally verified for one multi-mode interventional coil (capable of performing tracking, imaging and wireless marker functions) geometry and subsequently used to do a performance analysis of the B1 field profiles produced by three other multi-mode coil geometries. The method takes into account the induced current effects typically observed in interventional coils under MR guidance and can be extended to study the field distortion due to any implantable device.