Impact of surrounding tissue-type and peri-electrode gap in stereoelectroencephalography guided (SEEG) radiofrequency thermocoagulation (RF-TC): a computational study
Purpose To use computational modeling to provide a complete and logical description of the electrical and thermal behavior during stereoelectroencephalography-guided (SEEG) radiofrequency thermocoagulation (RF-TC).Methods A coupled electrical-thermal model was used to obtain the temperature distrib...
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Taylor & Francis Group
2024-12-01
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| Series: | International Journal of Hyperthermia |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/02656736.2024.2364721 |
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| author | Santiago Collavini Juan J. Pérez Enrique Berjano Mariano Fernández-Corazza Silvia Oddo Ramiro M. Irastorza |
| author_facet | Santiago Collavini Juan J. Pérez Enrique Berjano Mariano Fernández-Corazza Silvia Oddo Ramiro M. Irastorza |
| author_sort | Santiago Collavini |
| collection | DOAJ |
| description | Purpose To use computational modeling to provide a complete and logical description of the electrical and thermal behavior during stereoelectroencephalography-guided (SEEG) radiofrequency thermocoagulation (RF-TC).Methods A coupled electrical-thermal model was used to obtain the temperature distributions in the tissue during RF-TC. The computer model was first validated by an ex vivo model based on liver fragments and later used to study the impact of three different factors on the coagulation zone size: 1) the difference in the tissue surrounding the electrode (gray/white matter), 2) the presence of a peri-electrode gap occupied by cerebrospinal fluid (CSF), and 3) the energy setting used (power-duration).Results The model built for the experimental validation was able to predict both the evolution of impedance and the short diameter of the coagulation zone (error < 0.01 mm) reasonably well but overestimated the long diameter by 2 − 3 mm. After adapting the model to clinical conditions, the simulation showed that: 1) Impedance roll-off limited the coagulation size but involved overheating (around 100 °C); 2) The type of tissue around the contacts (gray vs. white matter) had a moderate impact on the coagulation size (maximum difference 0.84 mm), and 3) the peri-electrode gap considerably altered the temperature distributions, avoided overheating, although the diameter of the coagulation zone was not very different from the no-gap case (<0.2 mm).Conclusions This study showed that computer modeling, especially subject- and scenario-specific modeling, can be used to estimate in advance the electrical and thermal performance of the RF-TC in brain tissue. |
| format | Article |
| id | doaj-art-c9fdc4e218544cbbb4e4bbb49d0b7045 |
| institution | Kabale University |
| issn | 0265-6736 1464-5157 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Taylor & Francis Group |
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| series | International Journal of Hyperthermia |
| spelling | doaj-art-c9fdc4e218544cbbb4e4bbb49d0b70452025-01-03T09:30:27ZengTaylor & Francis GroupInternational Journal of Hyperthermia0265-67361464-51572024-12-0141110.1080/02656736.2024.2364721Impact of surrounding tissue-type and peri-electrode gap in stereoelectroencephalography guided (SEEG) radiofrequency thermocoagulation (RF-TC): a computational studySantiago Collavini0Juan J. Pérez1Enrique Berjano2Mariano Fernández-Corazza3Silvia Oddo4Ramiro M. Irastorza5Institute of Engineering and Agronomy, National University Arturo Jauretche, Buenos Aires, ArgentinaBioMIT, Departamento de Ingeniería Electrónica, Universitat Politècnica de València, València, SpainBioMIT, Departamento de Ingeniería Electrónica, Universitat Politècnica de València, València, SpainResearch Institute of Electronics, Control and Signal Processing (LEICI), National University of La Plata-CONICET, La Plata, ArgentinaNeurosciences and Complex Systems Unit (EnyS), CONICET, Hosp. “El Cruce N. Kirchner”, National University A. Jauretche (UNAJ), Buenos Aires, ArgentinaInstitute of Engineering and Agronomy, National University Arturo Jauretche, Buenos Aires, ArgentinaPurpose To use computational modeling to provide a complete and logical description of the electrical and thermal behavior during stereoelectroencephalography-guided (SEEG) radiofrequency thermocoagulation (RF-TC).Methods A coupled electrical-thermal model was used to obtain the temperature distributions in the tissue during RF-TC. The computer model was first validated by an ex vivo model based on liver fragments and later used to study the impact of three different factors on the coagulation zone size: 1) the difference in the tissue surrounding the electrode (gray/white matter), 2) the presence of a peri-electrode gap occupied by cerebrospinal fluid (CSF), and 3) the energy setting used (power-duration).Results The model built for the experimental validation was able to predict both the evolution of impedance and the short diameter of the coagulation zone (error < 0.01 mm) reasonably well but overestimated the long diameter by 2 − 3 mm. After adapting the model to clinical conditions, the simulation showed that: 1) Impedance roll-off limited the coagulation size but involved overheating (around 100 °C); 2) The type of tissue around the contacts (gray vs. white matter) had a moderate impact on the coagulation size (maximum difference 0.84 mm), and 3) the peri-electrode gap considerably altered the temperature distributions, avoided overheating, although the diameter of the coagulation zone was not very different from the no-gap case (<0.2 mm).Conclusions This study showed that computer modeling, especially subject- and scenario-specific modeling, can be used to estimate in advance the electrical and thermal performance of the RF-TC in brain tissue.https://www.tandfonline.com/doi/10.1080/02656736.2024.2364721Computer modelingepilepsyintracerebralradiofrequencystereoelectroencephalographythermocoagulation |
| spellingShingle | Santiago Collavini Juan J. Pérez Enrique Berjano Mariano Fernández-Corazza Silvia Oddo Ramiro M. Irastorza Impact of surrounding tissue-type and peri-electrode gap in stereoelectroencephalography guided (SEEG) radiofrequency thermocoagulation (RF-TC): a computational study International Journal of Hyperthermia Computer modeling epilepsy intracerebral radiofrequency stereoelectroencephalography thermocoagulation |
| title | Impact of surrounding tissue-type and peri-electrode gap in stereoelectroencephalography guided (SEEG) radiofrequency thermocoagulation (RF-TC): a computational study |
| title_full | Impact of surrounding tissue-type and peri-electrode gap in stereoelectroencephalography guided (SEEG) radiofrequency thermocoagulation (RF-TC): a computational study |
| title_fullStr | Impact of surrounding tissue-type and peri-electrode gap in stereoelectroencephalography guided (SEEG) radiofrequency thermocoagulation (RF-TC): a computational study |
| title_full_unstemmed | Impact of surrounding tissue-type and peri-electrode gap in stereoelectroencephalography guided (SEEG) radiofrequency thermocoagulation (RF-TC): a computational study |
| title_short | Impact of surrounding tissue-type and peri-electrode gap in stereoelectroencephalography guided (SEEG) radiofrequency thermocoagulation (RF-TC): a computational study |
| title_sort | impact of surrounding tissue type and peri electrode gap in stereoelectroencephalography guided seeg radiofrequency thermocoagulation rf tc a computational study |
| topic | Computer modeling epilepsy intracerebral radiofrequency stereoelectroencephalography thermocoagulation |
| url | https://www.tandfonline.com/doi/10.1080/02656736.2024.2364721 |
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