Non-contact monitoring during laser surgery by measuring the incision depth with air-coupled transducers

Abstract

Lack of haptic feedback during laser surgery hampers controlling the incision depth, leading to a high risk of undesired tissue damage. Here we present a new feedback sensing method that accomplishes non-contact realtime monitoring of laser ablation procedures by detecting shock waves emanating from the ablation spot with air-coupled transducers. Experiments in soft and hard tissue samples attained high reproducibility in real-time depth estimation of the laser-induced cuts. The advantages derived from the non-contact nature of the suggested monitoring approach are expected to greatly promote the general applicability of laser-based surgeries.

Fluoroless and contrast-free catheter ablation without a lead apron in routine clinical practice

“…Lesion formation induced by HPSD ablation has been reported, and short duration application of radiofrequency is regarded as a safe procedure from the perspective of avoiding complications such as perforation or thrombus formation at the application sites 17,18 . We believe well-trained operators or upcoming methods would be able to evaluate ablation sites [19][20][21][22][23][24] .…”