Design and Efficacy Evaluation of Steam Thermal Ablation System for Liver Tumor.
10.12455/j.issn.1671-7104.250114
- Author:
Wei WEI
1
;
Xiaofei JIN
2
;
Lidong XING
1
;
Zhiyu QIAN
2
;
Haotian WANG
2
;
Jingqi SONG
2
;
Kairan WAN
2
Author Information
1. Department of Electrical Engineering, College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing,
2. Department of Biomedical Engineering, College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing,
- Publication Type:Journal Article
- Keywords:
electromagnetic radiation;
non-carbonization;
reduced scattering coefficient;
steam thermal ablation;
steam thermal ablation needle
- MeSH:
Steam;
Animals;
Swine;
Liver Neoplasms/surgery*;
Ablation Techniques/methods*;
Liver/surgery*;
Equipment Design
- From:
Chinese Journal of Medical Instrumentation
2025;49(3):323-329
- CountryChina
- Language:Chinese
-
Abstract:
To address the limitations of traditional minimally invasive thermal ablation technology such as poor conformability, carbonization and electromagnetic radiation, this paper proposes a steam thermal ablation technology that uses saturated steam internal energy to replace the traditional electromagnetic radiation energy. Through the steam thermal ablation system and the steam thermal ablation needle designed based on simulation, the ex vivo pig liver experiments were carried out. The results have the characteristics of the maximum ablation axis ratio (short diameter / long diameter) and non-carbonization with the same type of thermal ablation technology. Based on the near-infrared light, in this paper the curative effect of the reduced scattering coefficient of the steam thermal ablation results was evaluated. The reduced scattering coefficients of the coagulation area all exceeded 16, reaching the completely damaged state, which verified that the steam thermal ablation can effectively inactivate the tumor cells.
