Title :
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
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;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2014.0620
