Distributed fiber-optic sensors for thermal monitoring in radiofrequency thermal ablation in porcine phantom

  • Daniele Tosi
  • , Sven Poeggel
  • , Gabriel Leen
  • , Elfed Lewis
  • , Edoardo Gino Macchi
  • , Giovanni Braschi
  • , Mario Gallati
  • , Alfredo Cigada
  • , Sandro Rossi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, we report for the first time the application of two distributed fiber-optic sensing systems in medical radiofrequency thermal ablation (RFTA). Measurement systems are based on a distributed temperature sensor based on high-speed detection of Rayleigh signature, and a linearly chirped fiber Bragg grating (LCFBG) sensor that detects temperature distribution on 1.5 cm length. Both technologies are capable of achieving sub-0.1mm spatial resolution. The sensing systems have been applied to monitor the temperature pattern induced by RFTA, measuring temperature gradients in excess of 5°C/mm. All tests have been performed on porcine liver tissue, the phantom of human liver. The results show the premises for the realization of a distributed sensor installed on a RFTA device, capable of real-time prediction and estimation of the ablation effect.

Original languageEnglish
Title of host publicationIEEE SENSORS 2014, Proceedings
EditorsFrancisco J. Arregui
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages39-42
Number of pages4
EditionDecember
ISBN (Electronic)9781479901616
DOIs
Publication statusPublished - 12 Dec 2014
Event13th IEEE SENSORS Conference, SENSORS 2014 - Valencia, Spain
Duration: 2 Nov 20145 Nov 2014

Publication series

NameProceedings of IEEE Sensors
NumberDecember
Volume2014-December
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229

Conference

Conference13th IEEE SENSORS Conference, SENSORS 2014
Country/TerritorySpain
CityValencia
Period2/11/145/11/14

Keywords

  • Ablation of issue
  • Distributed sensors
  • Optical fiber sensors
  • Radiofrequency thermal ablation (RFTA)
  • Temperature measurement

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