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ISSN 1001-5256 (Print)
ISSN 2097-3497 (Online)
CN 22-1108/R
Issue 8
Aug.  2018
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Article Contents

Application of contrast-enhanced ultrasound in microwave ablation of small hepatocellular carcinoma difficult to display on conventional ultrasonography

DOI: 10.3969/j.issn.1001-5256.2018.08.021
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  • Received Date: 2018-03-12
  • Published Date: 2018-08-20
  • Objective To investigate the value of contrast-enhanced ultrasound in microwave ablation of small hepatocellular carcinoma difficult to display on conventional ultrasonography. Methods A 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. Results A 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. Conclusion Contrast-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.

     

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