Radiofrequency ablation of tumors:the relationship between the electrode type and the feature of ablated zone

Initially,due to carbonization and gasification,the largest diameter of radiofrequency ablation(RFA) was smaller than 1.8cm.Thus,RFA could not meet the clinical requirements for the ablation treatment of solid tumors.With the continuous improvement of equipments and radiofrequency electrodes,the ablated size with RFA has become larger and RFA has been widely used in treating solid tumors.RFA can effectively provide minimally-invasive treatment for tumors when patients are unsuitable or unwilling to receive surgery.In this paper,the authors make a comprehensive review of the types of radiofrequency electrodes and the characteristics of RFA zones.