彩色多普勒超声与磁共振成像检查对胎儿肺隔离症的诊断价值

Diagnostic value of color Doppler ultrasonography and magnetic resonance imaging in fetal pulmonary sequestration

目的探讨彩色多普勒超声与磁共振成像(MRI)技术对胎儿肺隔离症的诊断价值。方法选择2017年1月至2020年1月许昌市中心医院经产前超声检查疑诊为肺隔离症的24例胎儿为研究对象,所有患儿行彩色多普勒超声检查2 d内行MRI检查。比较彩色多普勒超声和MRI检查对胎儿肺隔离症诊断的准确率、灵敏度、特异度、阳性预测值和阴性预测值。结果彩色多普勒超声检查和MRI检查对胎儿肺隔离症患者的诊断准确率分别为83.3%(20/24)和91.7%(22/24);MRI检查对胎儿肺隔离症的诊断准确率显著高于彩色多普勒超声(χ2=11.140,P<0.05)。MRI检查诊断胎儿肺隔离症的敏感度和阴性预测值均显著高于彩色多普勒超声检查(P<0.05)。彩色多普勒超声检查和MRI检查诊断胎儿肺隔离症的特异度、阳性预测值比较差异无统计学意义(P>0.05)。结论MRI检查对胎儿肺隔离症的诊断价值较高,可作为彩色多普勒超声检查的有效补充手段。

Objective To explore the diagnostic value of color Doppler ultrasonography and magnetic resonance imaging(MRI)technology in fetal pulmonary sequestration.Methods A total of 24 fetuses suspected of pulmonary sequestration by prenatal ultrasound admitted to the Xuchang Central Hospital from January 2017 to January 2020 were selected as the research subjects.MRI examination was performed within 2 days after all children received color Doppler ultrasonography.The diagnostic accuracy rate,sensitivity,specificity,positive predictive value and negative predictive value of color Doppler ultrasonography and MRI for fetal pulmonary sequestration were compared.Results The diagnostic accuracy rates of color Doppler ultrasonography and MRI for fetal pulmonary sequestration were 83.3%(20/24)and 91.7%(22/24),respectively;the diagnostic accuracy rate of MRI for fetal lung sequestration was significantly higher than those of color Doppler Ultrasonography(χ2=11.140,P<0.05).The sensitivity and negative predictive value of MRI examination in diagnosing fetal pulmonary sequestration were significantly higher than those of color Doppler ultrasonography(P<0.05).There was no statistically significant difference in the specificity and positive predictive value between color Doppler ultrasonography and MRI examination in the diagnosis of fetal pulmonary sequestration(P>0.05).Conclusion MRI examination is of high diagnostic value for fetal pulmonary sequestration and can be used as an effective supplementary method for color Doppler ultrasonography examination.