Monitoring of radiofrequency thermal ablation in liver tissue through fibre Bragg grating sensors array

Author

Tosi, Daniele ; Macchi, E.G. ; Braschi, G. ; Gallati, M. ; Cigada, A. ; Poeggel, Sven ; Leen, Gabriel ; Lewis, Elfed

Author_Institution

Opt. Fibre Sensors Res. Centre, Univ. of Limerick, Limerick, Ireland

Volume

50

Issue

14

fYear

2014

fDate

July 3 2014

Firstpage

981

Lastpage

983

Abstract

A fibre Bragg grating (FBG) array-based sensing probe has been installed on a device for radiofrequency thermal ablation (RFTA). The probe is made of five FBGs with 0.5 cm active area and 1 cm spacing, to provide quasi-distributed thermal pattern measurements. Multiple experiments have been conducted on porcine liver, reporting the temperature pattern along the ablation axis. Thermal maps allow an estimation of the RFTA efficiency and spatial extension in the liver.

Keywords

Bragg gratings; biological tissues; biomedical equipment; biomedical measurement; biothermics; fibre optic sensors; liver; optical fibres; patient monitoring; sensor arrays; temperature measurement; FBG array-based sensing probe; RFTA efficiency; fibre Bragg grating array-based sensing probe; liver tissue; porcine liver; quasi-distributed thermal pattern measurements; radiofrequency thermal ablation monitoring; thermal maps;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2014.0620

Filename

6849570