Fiber optic contact force catheters may be more desirable than magnetic modalities due to lower cost, compactness, and higher accuracy for assisting in ablation procedures and mapping.
Fiber optic contact force sensors in catheters offer advantages over magnetic modalities and have future potential in remote catheter systems and machine learning algorithms for ablation procedures.
INTRODUCTION: Advances in catheter design for minimally invasive surgery have brought about the incorporation of contact force (CF) sensors in catheters. Two main approaches to achieve CF sensing at the catheter end-effector consist of fiber optic or magnetic solutions. CF sensing feedback can be used to assist in ablation procedures, mapping cardiac regions, identifying tissue characteristics, and enhancing robotic catheter control. AREAS COVERED: This review covers the technological and clinical aspects of CFS in catheters. Contact force and force-time integral thresholds for ablation procedures, procedural complications, and electroanatomical mapping strategies are discussed. Future applications of improving catheter control, minimizing complications, and enhancing mapping techniques through CF are examined. EXPERT OPINION: Fiber optic CF catheters may be more desirable compared to magnetic modalities due to the lower cost, compactness, and higher accuracy. In ablation procedures, complications due to higher ablation duration, power, contact force, and force time can be reduced through practical experience and informed training for catheter operators. Future prospects consist of the incorporation of CF sensors with remote catheter systems to assist in catheter control. We propose that CF can also be used in machine learning decision-making algorithms to prevent complications or improve tissue characterization.
Cheng et al. (Thu,) conducted a review in Minimally invasive surgery and ablation procedures. Contact force sensors in minimally invasive catheters was evaluated. Fiber optic contact force catheters may be more desirable than magnetic modalities due to lower cost, compactness, and higher accuracy for assisting in ablation procedures and mapping.