Radio-frequency tissue ablation of the liver: in vivo and ex vivo experiments with four different systems.
Détails
Etat: Public
Version: Final published version
Licence: Non spécifiée
It was possible to publish this article open access thanks to a Swiss National Licence with the publisher.
ID Serval
serval:BIB_5CFE3FC225ED
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Radio-frequency tissue ablation of the liver: in vivo and ex vivo experiments with four different systems.
Périodique
European Radiology
ISSN
0938-7994
Statut éditorial
Publié
Date de publication
10/2003
Peer-reviewed
Oui
Volume
13
Numéro
10
Pages
2346-2352
Langue
anglais
Notes
Publication types: Comparative Study ; Journal Article
Résumé
The aim of this study was to test the efficacy of four different radio-frequency ablation (RFA) systems in normal hepatic parenchyma in large animals. The RFA was applied to pig livers in vivo and to calf livers ex vivo using the Radionics cluster needle, RITA starburst XL needle, Radiotherapeutics Le Veen 4.0 needle, and the Berchtold 14-G saline-perfused 15-mm active-tip needle based on constructor specifications. The volume of tissue coagulation from RF was calculated from measurements of the vertical diameter (Dv) and transverse diameter (Dt). Lesion shape was characterized using the ratio between Dt/Dv. Radiotherapeutics and RITA produced in vivo lesion volume of 42+/-10, 39+/-4 cm3 with a reproducible spherical shape (Dt/Dv of 1.01+/-0.16 and 0.97+/-0.1, respectively). Radionics produced in vivo RF lesions volume of 29+/-11 cm3) with an ovoid shape (Dt/Dv 0.88+/-0.09). The RF lesions with the Berchtold device could not be assessed in vivo as 5 of 8 animals died during treatment. Ex vivo RF lesions had similar volumes with each system; however, the Radiotherapeutics device produced more reproducible shaped lesions than the other systems. In our experimental study, we found no difference between expandable needle systems in vivo. Cooled needles produced slightly smaller and ovoid shape in vivo lesions.
Mots-clé
Animals, Catheter Ablation/adverse effects, Catheter Ablation/instrumentation, Culture Techniques, Electrodes, Equipment Design, Equipment Safety, Female, Liver/injuries, Liver/surgery, Male, Models, Animal, Risk Assessment, Sensitivity and Specificity, Sus scrofa
Pubmed
Web of science
Open Access
Oui
Création de la notice
11/04/2008 12:51
Dernière modification de la notice
14/02/2022 8:55