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Updated: Dec 15, 2025
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Remote Magnetic Navigation for Accurate, Real-time Catheter Positioning and Ablation in Cardiac Electrophysiology Procedures
Published on: April 21, 2013
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A novel open-source software-based high-precision workflow for target definition in cardiac radioablation
Stephan Hohmann1, Christoph Henkenberens2, Christos Zormpas1
1Hannover Heart Rhythm Center, Department of Cardiology and Angiology, Hannover Medical School, Hannover, Germany.
Journal of Cardiovascular Electrophysiology
|July 11, 2020
Summary
Precise targeting for noninvasive cardiac ablation using stereotactic ablative radiotherapy is crucial. This study introduces a 3D Slicer workflow for accurate electroanatomic map integration, improving treatment planning for cardiac arrhythmias.
Area of Science:
- Cardiology
- Radiation Oncology
- Medical Imaging
Background:
- Noninvasive ablative radiotherapy shows promise for cardiac arrhythmias.
- Precise targeting of the arrhythmogenic substrate is essential to minimize collateral damage.
- Current methods for integrating electroanatomic maps into treatment planning are challenging.
Purpose of the Study:
- To develop a high-precision target definition workflow for stereotactic ablative radiotherapy of cardiac arrhythmias.
- To enable accurate integration of electroanatomic maps with computed tomography (CT) for treatment planning.
Main Methods:
- Utilized the open-source 3D Slicer software platform.
- Developed an import plug-in for 3D Slicer to read electroanatomic maps from three common mapping systems.
- Validated the workflow in a patient case, aligning electroanatomic maps to CT scans.
Main Results:
- Achieved a mean alignment distance of 3.1 mm between electroanatomic maps and CT scans.
- Demonstrated high accuracy in translating electrophysiological points from maps to CT space.
- Successfully defined a radiotherapy treatment volume in CT space based on map-derived points.
Conclusions:
- A novel, high-precision method for target definition in stereotactic cardiac arrhythmia ablation is presented.
- Multimodal integration of electroanatomic maps and planning CT enables accurate localization of electrophysiological features.
- Further studies are needed to confirm if this workflow improves ablation outcomes.
