Title :
Catheter steering using a Magnetic Resonance Imaging system
Author :
Lalande, Viviane ; Gosselin, Frederick P. ; Martel, Sylvain
Author_Institution :
NanoRobotics Lab., Ecole Polytech. de Montreal (EPM), Montréal, QC, Canada
fDate :
Aug. 31 2010-Sept. 4 2010
Abstract :
A catheter is successfully bent and steered by applying magnetic gradients inside a Magnetic Resonance Imaging system (MRI). One to three soft ferromagnetic spheres are attached at the distal tip of the catheter with different spacing between the spheres. Depending on the interactions between the spheres, progressive or discontinuous/jumping displacement was observed for increasing magnetic load. This phenomenon is accurately predicted by a simple theoretical dipole interaction model.
Keywords :
biomedical MRI; catheters; ferromagnetic materials; 32nd magnetic load; catheter; dipole interaction model; discontinuous displacement; ferromagnetic spheres; jumping displacement; magnetic resonance imaging; Catheters; Coils; Force; Magnetic materials; Magnetic resonance imaging; Magnetization; Torque; Algorithms; Catheterization; Catheters; Equipment Design; Fluoroscopy; Humans; Magnetic Resonance Imaging; Magnetics; Models, Statistical; Models, Theoretical; X-Rays;
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE
Conference_Location :
Buenos Aires
Print_ISBN :
978-1-4244-4123-5
DOI :
10.1109/IEMBS.2010.5627150
