Krishna N. Kurpad1, Peng Wang2, Madhav Venkateswaran3, Amish N. Raval4, Orhan Unal2
1Radiology, University of Wisconsin, Madison, WI, United States; 2Medical Physics, University of Wisconsin, Madison, United States; 3Electrical and Computer Engineering, University of Wisconsin, Madison, United States; 4Medicine, University of Wisconsin, Madison, United States
The multi-mode coil, constructed on an endovascular catheter, enables three functionalities, essential for a wholly MR guided intravascular procedure, in a single device that is connected to the MR scanner through a single coaxial cable. These are 1) accurate tracking of the catheter's distal tip 2) detection of the catheter orientation and 3) high sensitivity, limited field of view imaging. In this in vivo swine study, we add a unipolar ablation tip to the distal end of the catheter and demonstrate MR guidance of the multi-mode coil into the left ventricle of the swine heart, where tissue ablation is performed.