产前超声及磁共振成像在胎儿肺隔离症诊断中的价值探讨

目的 探讨超声及MRI诊断胎儿肺隔离症的临床应用价值.方法 对12例产前超声怀疑胎儿肺隔离症者,24h内进行MRI检查,诊断结果均经尸检病理及产后随访证实.对12例胎儿的超声和MRI图像资料进行分析,并与随访结果对照.结果 产前超声诊断的12例胎儿肺隔离症,超声诊断符合率83.3％,误诊2例,（1例为隔疝,1例为肺囊腺瘤）;产前MRI检查诊断准确率为91.7％,误诊1例（隔离肺误诊为腹腔肿瘤）.结论 产前超声检查是诊断胎儿肺隔离症主要筛选方法,MRI可以作为胎儿超声检查的重要补充,二者联合应用,可进一步提高该病的诊断率.

Value of prenatal ultrasound and MRI in the diagnosis of pulmonary sequestration

Objective To study the clinical value of ultrasound （US） and magnetic resonance imaging （MRI） in the diag- nosis of fetal pulmonary sequestration. Methods Twelve pregnant women suspected fetal pulmonary sequestration re- ceived MRI examination within 24 hours after ultrasound, confirmed by autopsy or follow up. The results of prenatal ul- trasound and MRI were analyzed. Results The diagnostic accuracy of ultrasound was 83.3%, 2 cases were misdiagnosed, the diagnostic accuracy of MR was 91.7%, 1 case was misdiagnosed. Conclusion Prenatal ultrasound is the primary screening method for pulmonary sequestration, MRI can serve as a supplement, the combination of US and MRI can fur- ther improve the diagnostic accuracy of the disease.