{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,2]],"date-time":"2025-08-02T17:47:18Z","timestamp":1754156838720,"version":"3.41.2"},"reference-count":23,"publisher":"Emerald","issue":"4","license":[{"start":{"date-parts":[[2015,7,6]],"date-time":"2015-07-06T00:00:00Z","timestamp":1436140800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.emerald.com\/insight\/site-policies"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2015,7,6]]},"abstract":"<jats:sec>\n               <jats:title content-type=\"abstract-heading\">Purpose<\/jats:title>\n               <jats:p> \u2013 In this paper a numerical simulation analysis of a modified stent-based electrode is introduced to be used as a bipolar electrode for radio frequency ablation of tumours located in hollow organs. The purpose of this paper is to study the possibility of achieving a more regular volume of induced lesion with the presented electrode without imperilling the ductal organ where the tumour is located. <\/jats:p>\n            <\/jats:sec>\n            <jats:sec>\n               <jats:title content-type=\"abstract-heading\">Design\/methodology\/approach<\/jats:title>\n               <jats:p> \u2013 Three types of bipolar electrode configurations were considered, formed by two, three and five tubular segments. Numerical simulations were performed considering a tumour located in the bile duct, where two important blood vessels \u2013 the portal vein and the hepatic artery \u2013 have a significant impact due to the convective heat transfer caused by the blood flow (heat sink effect) which significantly affects the shape of lesion that is intended to induce in order to destroy the tumour. <\/jats:p>\n            <\/jats:sec>\n            <jats:sec>\n               <jats:title content-type=\"abstract-heading\">Findings<\/jats:title>\n               <jats:p> \u2013 The results obtained show that the five-segment electrode arrangement allows a regular volume for the induced lesion, independently of the different values of applied voltage considered. <\/jats:p>\n            <\/jats:sec>\n            <jats:sec>\n               <jats:title content-type=\"abstract-heading\">Originality\/value<\/jats:title>\n               <jats:p> \u2013 The presented work introduces a numerical simulation analysis on a modified based-stent electrode previously studied. In this case, the electrode is configured so it can be used as a bipolar electrode, i.e., active and ground electrode are placed in the same device. Besides the results evinced by the obtained results, this kind of electrode avoids eventual skin burns that might occur due to the need of the return electrodes when monopolar electrodes are used.<\/jats:p>\n            <\/jats:sec>","DOI":"10.1108\/compel-10-2014-0267","type":"journal-article","created":{"date-parts":[[2015,7,2]],"date-time":"2015-07-02T07:53:47Z","timestamp":1435823627000},"page":"1029-1042","source":"Crossref","is-referenced-by-count":0,"title":["Modelling of a bipolar stent-based electrode for thermal radio frequency ablation of tumours located in hollow organs"],"prefix":"10.1108","volume":"34","author":[{"given":"Tony R.","family":"Almeida","sequence":"first","affiliation":[]},{"given":"Carlos L.","family":"Antunes","sequence":"additional","affiliation":[]}],"member":"140","reference":[{"key":"key2022031015403423400_b1","unstructured":"Almeida, T.R.O.\n                (2012), \u201cDevelopment of a stent-based electrode for radio frequency thermal ablation procedure\u201d, PhD dissertation, Universidade de Coimbra, Coimbra."},{"key":"key2022031015403423400_b2","doi-asserted-by":"crossref","unstructured":"Antunes, C.F.R.L.\n               , \n                  Almeida, T.R.\n                and \n                  Raposeiro, E.N.\n                (2012a), \u201cSaline-enhanced RF ablation on a cholangiocarcinoma: a numerical simulation\u201d, \n                  COMPEL \u2013 The International Journal for Computation and Mathematics in Electrical and Electronic Engineering\n               , Vol. 31 No. 4, pp. 1055-1066.","DOI":"10.1108\/03321641211227302"},{"key":"key2022031015403423400_b3","unstructured":"Antunes, C.F.R.L.\n               , \n                  Almeida, T.R.O.\n                and \n                  Raposeiro, E.N.\n                (2012b), \u201cProducing a regular volume for thermal lesion on a cholangiocarcinoma considering a saline-enhanced radiofrequency ablation\u201d, \n                  Electrical Review\n               , Vol. 88 No. 7b, pp. 24-27."},{"key":"key2022031015403423400_b4","doi-asserted-by":"crossref","unstructured":"Antunes, C.F.L.\n               , \n                  Almeida, T.R.O.\n               , \n                  Raposeiro, N.\n               , \n                  Gon\u00e7alves, B.\n                and \n                  Almeida, E.P.\n                (2010a), \u201cEffects of the geometry of a tubular electrode on the temperature distribution in biological tissue\u201d, 14th Biennial IEEE Conference on Electromagnetic Field Computation, Chicago, IL.","DOI":"10.1109\/CEFC.2010.5481173"},{"key":"key2022031015403423400_b5","doi-asserted-by":"crossref","unstructured":"Antunes, C.F.R.L.\n               , \n                  Almeida, T.R.O.\n               , \n                  Raposeiro, N.\n               , \n                  Gon\u00e7alves, B.\n                and \n                  Almeida, E.P.\n                (2012c), \u201cUsing a tubular electrode for radiofrequency ablation: numerical and experimental analysis\u201d, \n                  COMPEL \u2013 The International Journal for Computation and Mathematics in Electrical and Electronic Engineering\n               , Vol. 31 No. 4, pp. 1077-1086.","DOI":"10.1108\/03321641211227320"},{"key":"key2022031015403423400_b6","unstructured":"Antunes, C.F.R.L.\n               , \n                  Almeida, T.R.\n               , \n                  Raposeiro, N.\n               , \n                  Gon\u00e7alves, B.\n               , \n                  Almeida, P.\n                and \n                  Antunes, E.A.\n                (2010b), \u201cA tubular electrode for radiofrequency ablation therapy\u201d, \n                  World Academy of Science, Engineering and Technology\n               , Vol. 4 No. 10, pp. 449-455."},{"key":"key2022031015403423400_b7","doi-asserted-by":"crossref","unstructured":"Arkin, H.\n               , \n                  Xu, L.X.\n                and \n                  Holmes, E.K.R.\n                (1994), \u201cRecent developments in modeling heat transfer in blood perfused tissues\u201d, \n                  IEEE Transactions on Biomedical Engineering\n               , Vol. 41 No. 2, pp. 97-107.","DOI":"10.1109\/10.284920"},{"key":"key2022031015403423400_b8","doi-asserted-by":"crossref","unstructured":"Berjano, E.J.\n                and \n                  Hornero, E.F.\n                (2005), \u201cA cooled intraesophageal balloon to prevent thermal injury during endocardial surgical radiofrequency ablation of the left atrium: a finite element study\u201d, \n                  Physics in Medicine and Biology\n               , Vol. 50 No. 20, pp. N269-N279.","DOI":"10.1088\/0031-9155\/50\/20\/N03"},{"key":"key2022031015403423400_b9","unstructured":"Boeti, M.P.S.\n               , \n                  Grigorie, R.\n                and \n                  Popescu, E.I.\n                (2013), \u201cLaparoscopic radiofrequency ablation 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Lemos Antunes","sequence":"first","affiliation":[]}],"short-title":[],"issued":{"date-parts":[[2015,7,6]]},"references-count":23,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2015,7,6]]}},"alternative-id":["10.1108\/COMPEL-10-2014-0267"],"URL":"https:\/\/doi.org\/10.1108\/compel-10-2014-0267","relation":{},"ISSN":["0332-1649"],"issn-type":[{"type":"print","value":"0332-1649"}],"subject":[],"published":{"date-parts":[[2015,7,6]]}}}