MRI与彩色超声联用应用对凶险型前置胎盘合并胎盘植入的诊断价值

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Abstract ObjectiveTo compare the application value of MRI combined with color ultrasound or MRI alone in diagnosis of the dangerous type of placenta previa complicated with placenta accretes.MethodsSeventy suspected cases of pernicious placenta previa complicated with placenta accrete in Meizhou People′s Hospital from October 2010 to October 2015 were selected as the research object,all of whom were examined by ultrasound and MRI in vagina.The pathological results of postpartum surgery were used as a"gold standard".The diagnostic sensitivity,specificity and accuracy of using MRI alone and MRI combined with color Doppler ultrasound in diagnosis of the dangerous type of placenta previa complicated with placenta accreta.Results58 cases were confirmed by pathological examination in the diagnosis of pernicious placenta previa complicated with placenta accrete.The coincidence rate of using MRI alone in diagnosis of placenta previa complicated with placenta accreta was 75.86% (49/70).But the coincidence rate of MRI combined with color ultrasound in diagnosis of placenta previa complicated with placenta accreta was significantly higher than that of MRI alone (χ2=10.324,P=0.001).The diagnostic sensitivity and specificity rates of using MRI alone in diagnosis of placenta previa complicated with placenta accreta were 75.86%(44/58),41.67%(5/12).But diagnostic sensitivity and specificity rates of using MRI combined with color ultrasound in diagnosis of placenta previa complicated with placenta accreta were 93.10%(54/58),83.33%(10/12)respectively,which were significantly higher than those by using MRI alone(χ2= 6.576,4.444,P=0.010,0.045).ConclusionUsing MRI combined with ultrasound and comprehensive analysis of characteristics of ultrasonography,clinical manifestations and medical history in the clinical diagnosis of placenta previa complicated with placenta accreta is helpful to reduce the misdiagnosis rate and avoid the occurrence of bleeding,uterine rupture and other serious consequences.

Key words： Placenta previa Placenta implantation MRI Color Doppler ultrasound Diagnosis

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	Articles by authors
	LIN Hua-lan
	LAN Liu-bing
	ZHONG Jing

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LIN Hua-lan,LAN Liu-bing,ZHONG Jing. Diagnostic value of the application of MRI combined with color ultrasound or MRI alone in diagnosis of the dangerous type of placenta previa complicated with placenta accreta[J]. 中国当代医药, 2017, 24(19): 100-102.

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http://dangdaiyiyao.com/EN/ OR http://dangdaiyiyao.com/EN/Y2017/V24/I19/100

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