Clinical application of an intraoperative three-dimensional imaging navigation system for computed tomography-guided thermal ablation of liver tumors
Da Fang
Peng Zhao
Bojun Liu
Yonghong Zhang
Jiasheng Zheng
Caixia Hu
Abstract：Objective To explore the value of clinical application of a navigation system with three-dimensional (3D) imaging for thermal ablation of liver tumors.
Methods The study cohort comprised 60 patients who underwent computer tomography- (CT) guided thermal ablation (radiofrequency or microwave ablation) of liver tumors in our department from August 2021 to October 2022. A random envelope method was used to allocate the study patients randomly to two groups of 30 patients each: a navigation and a control group. An intraoperative 3D imaging navigation system with CT guidance was used in the navigation group, whereas traditional CT guidance was used in the control group. During the thermal ablation process, the number of puncture needle adjustments, time to target puncture, and number of CT scans were recorded and compared between the two groups.
Results The average number of punctures and needle adjustments was significantly lower in the navigation group (2.7±1.1 mins) than in the control group (4.9±3.7 mins). The average time taken to puncture the target was significantly shorter in the navigation group (11.3±4.2 mins) than in the control group (15.5±4.8 mins). The average number of CT scans was significantly smaller in the navigation group (4.5±1.6) than in the control group (8.4±4.5) (all P<0.05).
Conclusion Use of an intraoperative 3D imaging navigation system in thermal ablation of liver tumors can improve the accuracy of tumor thermal ablation puncture and reduce the number of punctures, number of CT scans, and average puncture time. Such systems can play an important role in the clinic.
Keywords：computed tomography guidanceintraoperative 3D imaging navigation systemliver tumorsther-mal ablation
Publication Date：2025-06-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 43-49 )