Application of contrast-enhanced ultrasound in microwave ablation of small hepatocellular carcinoma difficult to display on conventional ultrasonography
10.3969/j.issn.1001-5256.2018.08.021
- VernacularTitle:超声造影引导下微波消融在常规超声显示困难小肝癌中的应用
- Author:
Xi WANG
1
;
Peng CHENG
;
Fen HE
Author Information
1. Department of Ultrasound, General Hospital of Chengdu Military Region, Chengdu 610083, China
- Publication Type:Research Article
- Keywords:
liver neoplasms;
angiography;
ultrasonography;
catheter ablation
- From:
Journal of Clinical Hepatology
2018;34(8):1697-1701
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo investigate the value of contrast-enhanced ultrasound in microwave ablation of small hepatocellular carcinoma difficult to display on conventional ultrasonography. MethodsA retrospective analysis was performed for the clinical data of the patients with liver cancer difficult to display on conventional ultrasonography who were treated in Department of Oncology in General Hospital of Chengdu Military Region from January 2015 to December 2017, and according to the results of contrast-enhanced computed tomography (CT), all patients had a nodule diameter of ＜3.0 cm. All patients were given contrast-enhanced ultrasound during microwave ablation to identify tumor location and size. Contrast-enhanced CT was performed at one month after surgery to evaluate the effect of ablation and the incidence of complications. For each lesion, conventional ultrasound images and contrast-enhanced CT images before surgery, contrast-enhanced ultrasound images during surgery, and contrast-enhanced CT images after surgery were analyzed to evaluate treatment outcome and postoperative follow-up. ResultsA total of 52 patients with 78 lesions were enrolled. Of all lesions, 73 were directly displayed on contrast-enhanced ultrasound and 5 were clarified in combination with contrast-enhanced CT, among which one was located near the diaphragm and the top of the liver and four were only slightly enhanced in the arterial phase on contrast-enhanced ultrasound. Microwave ablation was performed for all 78 lesions, and no major complications were observed. Follow-up at one month after surgery showed that all 78 lesions were completely inactivated. ConclusionContrast-enhanced ultrasound can clearly show the location, size, and extent of infiltration of small hepatocellular carcinoma lesions which are difficult to display on conventional ultrasonography. It also helps with accurate localization for microwave ablation and has fewer complications. Therefore, it is an important auxiliary method for microwave ablation.
