Type
ArticleAuthors
Antunes, Carlos Lemos Lemos LemosAlmeida, Tony Richard O
Raposeiro, Nélia
Gonçalves, Belarmino
Álmeida, Paulo E M
KAUST Department
Red Sea Research Center (RSRC)Date
2012-07-06Permanent link to this record
http://hdl.handle.net/10754/575564
Metadata
Show full item recordAbstract
Purpose – Due to its good mechanical and biocompatibility characteristics, nitinol SEMS is a popular endoprothesis used for relieving stricture problems in hollow organs due to carcinomas. Besides its mechanical application, SEMS can be regarded as well as potential electrode for performing RF ablation therapy on the tumor. The purpose of this work is to perform numerical and experimental analyses in order to characterize the lesion volume induced in biological tissue using this kind of tubular electrode. Design/methodology/approach – Data concerning electrical conductivity and dimension of the damaged tissue after RF ablation procedure were obtained from ex vivo samples. Next, numerical models using 3D finite element method were obtained reassembling the conditions considered at experimentation setup and results were compared. Findings – Numerical and experimental results show that a regular volume of damaged tissue can be obtained considering this type of electrode. Also, results obtained from numerical simulation are close to those obtained by experimentation. Originality/value – SEMSs, commonly used as devices to minimize obstruction problems due to the growth of tumors, may still be considered as an active electrode for RF ablation procedures. A method considering this observation is presented in this paper. Also, numerical simulation can be regarded in this case as a tool for determining the lesion volume.Citation
Antunes, C. L., Almeida, T. R. O., Raposeiro, N., Gonçalves, B., & Almeida, P. (2012). Using a tubular electrode for radiofrequency ablation. COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 31(4), 1077–1086. doi:10.1108/03321641211227320Publisher
Emeraldae974a485f413a2113503eed53cd6c53
10.1108/03321641211227320