Intra-tissue pressure measurement during laser ablation with fiber-optic extrinsic Fabry-Perot sensor

We report the real-time measurement of intra-tissue parenchymal pressure during laser ablation (LA). Pressure detection is performed with an extrinsic Fabry-Perot interferometry (EFPI) probe, fabricated with a biocompatible all-glass design. Experiments have been performed with solid-state laser ablator, recording a peak pressure of 71.6 kPa. The pressure measurement methodology may allow fine control of LA procedure.

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