PreoperativepredictionofmassivepostpartumhemorrhageinplacentapreviabyMRI
	    		
		   		
		   			
		   		
	    	
    	 
    	10.3969/j.issn.1002-1671.2019.05.021
   		
        
        	
        		- VernacularTitle:术前MRI在预测前置胎盘患者发生严重产后出血中的应用
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Jimin GUO
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Manrui CAO
			        		
			        		;
		        		
		        		
		        		
			        		Fangjing ZHANG
			        		
			        		;
		        		
		        		
		        		
			        		Yang LIU
			        		
			        		;
		        		
		        		
		        		
			        		Wei LU
			        		
			        		;
		        		
		        		
		        		
			        		Guangrong FAN
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. 南方医科大学附属深圳市妇幼保健院放射科
			        		
		        		
	        		
        		 
        	
        	
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		magneticresonanceimaging;
			        		
			        		
			        		
				        		placentaprevia;
			        		
			        		
			        		
				        		massivepostpartumhemorrhage
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Journal of Practical Radiology
	            		
	            		 2019;35(5):772-775
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	Objective ToinvestigatethevalueofpreoperativeMRIforplacentapreviainpredictionofmassivepostpartumhemorrhage. Methods AretrospectiveanalysisoftheclinicalhistoryandprenatalMRIfeaturesof362patientswithplacentapreviawereperformed. Ofthese,54casesexperiencedseverepostpartum hemorrhage.Results Univariateanalysisshowedthattheageofpregnantwomen (χ2=3.951,P=0.047),gestationalage(χ2=6.257,P=0.012),numberofcesareansections(χ2=36.372,P=0.001)andgemellary pregnancy(χ2=7.933,P=0.005)wereassociated with massivepostpartum hemorrhage.Amongthe MRIsigns,Uterinebulging (OR,46.712;95%CI,13.067-166.987),placentalprotrusionsign (OR,22.787;95% CI,4.595-113),andintroplacentalT2dark band(OR,14.757;95%CI,7.149-30.461)indicatedhighriskwithmassivepostpartumhemorrhage.Myometrialthinningorlocalized interruption,unevenplacentalsignal,abnormalbloodvesselsbelowtheplacenta,abundantbloodvesselsinloweruterusandcervix, cervicalshorteningandothersignsfortheevaluationofseverepostpartumhemorrhagewerealsostatisticallysignificant.Conclusion MRIcanpredictmostoftheseverepostpartumhemorrhagebeforesurgeryandisveryhelpfultoimprovethepatientprognosis.