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The effect of lipiodol deposition in HCC after TACE on the necrosis range of PMCT

Authors Sun HL, Ni JY, Jiang XY, Chen D, Chen YT, Xu LF

Received 17 March 2017

Accepted for publication 19 June 2017

Published 1 August 2017 Volume 2017:10 Pages 3835—3842


Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Colin Mak

Peer reviewer comments 2

Editor who approved publication: Dr Yao Dai

HongLiang Sun,1,2 JiaYan Ni,1 XiongYing Jiang,1 Dong Chen,1 YaoTing Chen,1 LinFeng Xu1

1Department of Interventional Therapy, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong Province, China; 2Department of Radiology, Children’s Hospital of Philadelphia, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA

Objective: To study the impact of lipiodol deposition in the lesion of hepatocellular carcinoma (HCC) after transarterial chemoembolization (TACE) on the necrosis area of percutaneous microwave coagulation therapy (PMCT).
Materials and methods: A total of 44 patients with HCC with 56 nodules, with a size ranging from 1.5 to 3.5 cm, was selected in our study. About 23 patients (26 nodules) underwent PMCT treatment only as Group A and 21 patients (30 nodules) were treated by PMCT-combined TACE as Group B. All patients underwent PMCT with single-electrode and one-point ablation. Paired t-test was used to analyze pre- and postoperatively the volume of tumor and the necrosis volume after PMCT. Independent t-test was used to compare the difference in the necrosis area between two groups (α=0.05).
Results: All patients underwent PMCT or PMCT combined with TACE successfully. The tumor and necrosis size of Group A was 16.29±19.23 cm3 and 17.98±18.49 cm3 (P=0.650), and 11.95±12.78 cm3 and 16.60±11.70 cm3 of Group B (P=0.017). There was no significant difference on necrosis volume between the two groups (P=0.581). The necrosis area of Group B was larger than the size of the tumor (P=0.017), but the ablation area of the two groups was smaller than the theoretic area (P=0.001). (The theoretic area means that the necrosis area of ablation should be 1.0 cm larger than the tumor in diameter.)
Conclusion: PMCT combined with TACE could enlarge the ablation area, but will not lead to an ideal necrosis area than the PMCT alone. The lipiodol deposition in the tumor lesion may hinder the expansion of the heating field. Therefore, further research was needed.

Keywords: hepatocellular carcinoma, transarterial chemoembolization, percutaneous microwave coagulation therapy, lipiodol

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