Year : 2016 | Volume
: 12 | Issue : 7 | Page : 153--158
Effect of heat sink on the recurrence of small malignant hepatic tumors after radiofrequency ablation
Zheng-Yu Lin1, Guo-Lin Li2, Jin Chen1, Zhong-Wu Chen1, Yi-Ping Chen1, Sun-Zhi Lin3
1 Department of Interventional Radiology, First Affiliated Hospital of Fujian Medical University, Fuzhou, China
2 Department of Radiology, Shaxian Hospital, Shaxian, China
3 Department of Pain Management, Mindong Hospital of Fujian Medical University, Fuan, China
Aims: The aim of this study was to investigate the effect of heat sink on the recurrence of hepatic malignant tumors <3 cm after percutaneous radiofrequency ablation (RFA).
Subjects and Methods: This study included 564 hepatic malignant tumors <3 cm in 381 patients. Preoperative images were used to determine whether these tumors were adjacent to vessels, and the diameter of adjacent vessels was measured. RFA was performed computed tomography (CT), magnetic resonance imaging (MRI) and ultrasound (US) guidance, and postoperative imaging follow-up was then conducted.
Statistical Analysis Used: SPSS software version 17.0 was used for data processing, and the χ2 test was used for comparative analysis. Two-sided P < 0.05 indicated statistical significance.
Results: A total of 33 recurrences were found: 15 in the MR group (15/468), 12 in the US group (12/53), and 6 in the CT group (6/43). Of the 101 lesions adjacent to blood vessels larger than 3 mm, 20 showed recurrence: 10 in the MR group (10/77), 7 in the US group (7/17), and 3 in the CT group (3/7). The recurrence rate of perivascular lesions was higher than that of nonperivascular lesions, and the rate in the MR group was lower those in the US and CT groups.
Conclusions: The curative effect of MRI-guided RFA is better than those of US- and CT-guided ablation. The heat sink effect is an important factor affecting recurrence of hepatic malignant tumors after RFA.
Department of Interventional Radiology, First Affiliated Hospital of Fujian Medical University, 20 Chazhong Road, Fuzhou 350005
|How to cite this article:|
Lin ZY, Li GL, Chen J, Chen ZW, Chen YP, Lin SZ. Effect of heat sink on the recurrence of small malignant hepatic tumors after radiofrequency ablation.J Can Res Ther 2016;12:153-158
|How to cite this URL:|
Lin ZY, Li GL, Chen J, Chen ZW, Chen YP, Lin SZ. Effect of heat sink on the recurrence of small malignant hepatic tumors after radiofrequency ablation. J Can Res Ther [serial online] 2016 [cited 2022 Jul 2 ];12:153-158
Available from: https://www.cancerjournal.net/article.asp?issn=0973-1482;year=2016;volume=12;issue=7;spage=153;epage=158;aulast=Lin;type=0