Key result
A probabilistic framework for modeling contact quality of a robotic intracardiac catheter demonstrated that stability and safety cannot be guaranteed under surface motion disturbances at nominal normal forces.
Why the study?
Blood flow and tissue surface motion disturbances complicate intracardiac robotic catheter motion planning, where maintaining stable and safe contact is essential for effective ablation lesions.
This study introduces a probabilistic approach to analyze the contact stability and safety of robotic intracardiac catheters under physiological disturbances in a simulated environment.
May aid robotic catheter contact planning under flow; leaves open clinical validation of the model.
The disturbances caused by the blood flow and tissue surface motions are major concerns during the motion planning of an intracardiac robotic catheter. Maintaining a stable and safe contact on the desired ablation point is essential for achieving effective lesions during the ablation procedure. In this paper, a probabilistic formulation of the contact stability and the contact safety for intravascular cardiac catheters under the blood flow and surface motion disturbances is presented. Probabilistic contact stability and contact safety metrics, employing a sample-based representation of the blood flow velocity distribution and the heart motion trajectory, are introduced. Finally, the contact stability and safety for an magnetic resonance imaging-actuated robotic catheter under main pulmonary artery blood flow disturbances and left ventricle surface motion disturbances are analyzed in simulation as example scenarios.
No takes yet. Share an insight, caveat, or question.
Hao et al. (2021) studied Atrial fibrillation (context for robotic catheter ablation). Probabilistic contact stability and safety analysis framework was evaluated on Probabilistic contact stability and contact safety metrics. A probabilistic framework for modeling contact quality of a robotic intracardiac catheter demonstrated that stability and safety cannot be guaranteed under surface motion disturbances at nominal normal forces.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: