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Proceedings Paper

Fiber optic dual EFPI/FBG for radiofrequency ablation monitoring in liver: ex-vivo experiments
Author(s): Daniele Tosi; Edoardo Gino Macchi; Giovanni Braschi; Mario Gallati; Alfredo Cigada; Sandro Rossi; Sven Poeggel; Gabriel Leen; Elfed Lewis
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Paper Abstract

We present a miniature and biocompatible fiber-optic sensing system, for specific application in monitoring of the radiofrequency thermal ablation (RFA) process. The sensing system is based on combination of Extrinsic Fabry-Perot Interferometry (EFPI) sensor for pressure detection, and Fiber Bragg Grating (FBG) for temperature measurement. The dual pressure/temperature measurement shows an extremely low cross-sensitivity. Measurements have been performed ex-vivo on porcine liver, recording several RFA procedures in different location. Maximum values of 164°C and 162 kPa have been recorded on the ablation point.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915740 (2 June 2014); doi: 10.1117/12.2058066
Show Author Affiliations
Daniele Tosi, Univ. of Limerick (Ireland)
Edoardo Gino Macchi, Univ. degli Studi di Pavia (Italy)
Giovanni Braschi, Univ. degli Studi di Pavia (Italy)
Mario Gallati, Univ. degli Studi di Pavia (Italy)
Alfredo Cigada, Politecnico di Milano (Italy)
Sandro Rossi, IRCCS Policninico San Matteo Foundation (Italy)
Sven Poeggel, Univ. of Limerick (Ireland)
Gabriel Leen, Univ. of Limerick (Ireland)
Elfed Lewis, Univ. of Limerick (Ireland)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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