Ultrasound-guided percutaneous radiofrequency ablation in treatment of liver metastases of malignant tumor
	    		
		   		
		   			
		   		
	    	
    	 
    	10.13929/j.1672-8475.201708002
   		
        
        	
        		- VernacularTitle:超声引导下经皮射频消融治疗恶性肿瘤肝转移
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Shuzhi LIN
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Qian XU
			        		
			        		;
		        		
		        		
		        		
			        		Jinyu WU
			        		
			        		;
		        		
		        		
		        		
			        		Kun YAN
			        		
			        		;
		        		
		        		
		        		
			        		Wei WU
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. 哈尔滨市第一医院超声科
			        		
		        		
	        		
        		 
        	
        	
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Ultrasonography;
			        		
			        		
			        		
				        		Catheter ablation;
			        		
			        		
			        		
				        		Liver;
			        		
			        		
			        		
				        		Neoplasm metastasis
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Chinese Journal of Interventional Imaging and Therapy
	            		
	            		 2018;15(1):29-32
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	Objective To investigate the application value of ultrasound-guided percutaneous radiofrequency ablation (RFA) in treatment of liver metastases of malignant tumor.Methods Clinical and imaging data of 109 patients with liver metastases of malignant tumor who underwent ultrasound-guided percutaneous RFA during December 2009 to May 2015 were retrospectively analyzed.Results There were 31 patients (31/109,28.44%) with single liver metastases and 78 patients (78/109,71.56%) with multiple lesions.The primary tumors included colorectal,lung,breast,gastric,pancreatic,ovarian and prostate carcinomas.Among all 198 liver metastases,there were 151 (151/198,76.26%) with diameter < 3 cm and 47 (47/198,23.74%) with diameter ≥3 cm.One month after RFA,187 lesions (187/198,94.44%) were completely inactivated,while the other 11 lesions (11/198,5.56%) still had residual activity.One month later,the tumor markers improved obviously compared with those before treatment (all P<0.05).The incidence of intraoperative and postoperative complications was 6.42% (7/109).Conclusion Ultrasound-guided percutaneous RFA is a safe and effective treatment for patients with non-surgical indications of malignant liver metastases,which can partially control the survival activity of liver metastases.