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Updated: Jul 10, 2026
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Remote Magnetic Navigation for Accurate, Real-time Catheter Positioning and Ablation in Cardiac Electrophysiology Procedures
Published on: April 21, 2013
Sequence design and software environment for real-time navigation of a wireless ferromagnetic device using MRI system
A Chanu1, E Aboussouan, S Tamaz
1Dept. of Comput. Eng., Montreal Univ., Quebec, Canada.
Summary
This study presents software architecture for navigating an MRI-guided ferromagnetic device in 1D and 2D environments. Real-time MRI and a PID controller enabled precise magnetic core control.
Area of Science:
- Medical imaging and instrumentation
- Robotics and control systems
Background:
- Untethered devices offer advantages in minimally invasive procedures.
- Precise navigation of such devices within the body is challenging.
Purpose of the Study:
- To describe software architecture for real-time navigation of a ferromagnetic untethered device.
- To demonstrate the feasibility of MRI-guided control in 1D and 2D phantom environments.
Main Methods:
- Utilized a Siemens 1.5 T Avanto MRI system for real-time tracking.
- Developed a dedicated software environment and a 3D tracking pulse sequence.
- Implemented a Proportional-Integral-Derivative (PID) controller for magnetic core control.
Main Results:
- Successfully demonstrated the software architecture in a 1D and 2D phantom environment.
- Achieved real-time control of the ferromagnetic untethered device.
- Presented experimental results validating the navigation system.
Conclusions:
- The described software architecture enables effective real-time navigation of ferromagnetic untethered devices using MRI.
- The PID controller provides precise control for magnetic core manipulation.
- This approach shows promise for image-guided robotic interventions.
