Meeting Banner
Abstract #3705

Tracking a 6F catheter under MRI using a controllable susceptibility device: a new tracking mechanism.

William Dominguez-Viqueira 1 , Chris Dey 2 , Hirad Karimi 1,3 , Jennifer Barry 1 , and Charles H Cunningham 1,3

1 Physical Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada, 2 Medical Imaging, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada, 3 Medical Biophysics, University of Toronto, Toronto, Ontario, Canada

Recently a novel susceptibility-based tracking device which can be mechanically turned ON and OFF was demonstrated for MR guided interventions. For this work, a new two-layer tracking element was designed, integrated into a 6F catheter with a lumen and demonstrated in-vivo. A novel tracking method was demonstrated in which the graphite layer was periodically moved every TR, creating a ghost of the catheter tip at precisely FOV/2 from the true location in projection images. In future work, an automated actuator will be designed and constructed to permit toggling of the device during rapid, short-TR projection images, enabling quick snap-to-slice functionality.

This abstract and the presentation materials are available to members only; a login is required.

Join Here