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Updated: Mar 23, 2026
Thermal Ablation for the Treatment of Abdominal Tumors
Published on: March 7, 2011
A preoperative mathematic model for computed tomographic guided microwave ablation treatment of hepatic dome tumors
Fei Gao1,2,3, Guo-Bao Wang2,3,4, Zhan-Wang Xiang1,2,3
1Department of Interventional Radiology, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China.
Purpose:
This study sought to prospectively evaluate the feasibility and safety of a preoperative mathematic model for computed tomographic(CT) guided microwave(MW) ablation treatment of hepatic dome tumors.
Methods:
This mathematic model was a regular cylinder quantifying appropriate puncture routes from the bottom up. A total of 103 patients with hepatic dome tumors were enrolled and randomly divided into 2 groups based on whether this model was used or not: Group A (using the model; n = 43) versus Group B (not using the model; n = 60). All tumors were treated by CT-guided MW ablation and follow-up contrast CT were reviewed.
Results:
The average number of times for successful puncture, average ablation time, and incidence of right shoulder pain were less in Group A than Group B (1.4 vs. 2.5, P = 0.001; 8.8 vs. 11.1 minutes, P = 0.003; and 4.7% vs. 20%, P = 0.039). The technical success rate was higher in Group A than Group B (97.7% vs. 85.0%, P = 0.032). There were no significant differences between the two groups in primary and secondary technique efficacy rates (97.7% vs. 88.3%, P = 0.081; 90.0% vs. 72.7%, P = 0.314). No major complications occurred in both groups.
Conclusion:
The mathematic model of regular cylinder is feasible and safe for CT-guided MW ablation in treating hepatic dome tumors.
