title: A preoperative mathematic model for computed tomographic guided microwave ablation treatment of hepatic dome tumors.
abstract: OBJECTIVE
  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.
  
  
  CONCLUSIONS
  The mathematic model of regular cylinder is feasible and safe for CT-guided MW ablation in treating hepatic dome tumors.
authors.affiliation: Department of Interventional Radiology, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China.|State Key Laboratory of Oncology in South China, Guangzhou 510060, PR China.|Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, PR China.
authors.forename: Fei
authors.initials: F
authors.lastname: Gao
authors.affiliation: State Key Laboratory of Oncology in South China, Guangzhou 510060, PR China.|Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, PR China.|Department of Endoscopy, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China.
authors.forename: Guo-Bao
authors.initials: GB
authors.lastname: Wang
authors.affiliation: Department of Interventional Radiology, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China.|State Key Laboratory of Oncology in South China, Guangzhou 510060, PR China.|Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, PR China.
authors.forename: Zhan-Wang
authors.initials: ZW
authors.lastname: Xiang
authors.affiliation: Department of Gastrointestinal Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, PR China.
authors.forename: Bin
authors.initials: B
authors.lastname: Yang
authors.affiliation: Imaging Sciences, University of Rochester Medical Center, Rochester, NY 14642, USA.
authors.forename: Jing-Bing
authors.initials: JB
authors.lastname: Xue
authors.affiliation: Department of Interventional Radiology, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China.|State Key Laboratory of Oncology in South China, Guangzhou 510060, PR China.|Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, PR China.
authors.forename: Zhi-Qiang
authors.initials: ZQ
authors.lastname: Mo
authors.affiliation: Department of Interventional Radiology, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China.|State Key Laboratory of Oncology in South China, Guangzhou 510060, PR China.|Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, PR China.
authors.forename: Zhi-Hui
authors.initials: ZH
authors.lastname: Zhong
authors.affiliation: Department of Interventional Radiology, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China.|State Key Laboratory of Oncology in South China, Guangzhou 510060, PR China.|Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, PR China.
authors.forename: Tao
authors.initials: T
authors.lastname: Zhang
authors.affiliation: Department of Interventional Radiology, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China.|State Key Laboratory of Oncology in South China, Guangzhou 510060, PR China.|Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, PR China.
authors.forename: Fu-Jun
authors.initials: FJ
authors.lastname: Zhang
authors.affiliation: Department of Interventional Radiology, Sun Yat-sen University Cancer Center, Guangzhou 510060, PR China.|State Key Laboratory of Oncology in South China, Guangzhou 510060, PR China.|Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, PR China.
authors.forename: Wei-Jun
authors.initials: WJ
authors.lastname: Fan
mesh_terms: D000328:Adult; D000368:Aged; D017115:Catheter Ablation / Q000379:methods*; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000401:mortality / Q000601:surgery*; D008297:Male; D008872:Microwaves / Q000627:therapeutic use*; D008875:Middle Aged; D008962:Models, Theoretical; D025321:Surgery, Computer-Assisted / Q000379:methods*; D014057:Tomography, X-Ray Computed
keywords: CT-guided; hepatic dome; mathematic model; microwave ablation; tumors