胎儿继发性肺发育不良的MRI评价

Journal of Clinical Radiology(2008)

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Abstract
目的 评价联合应用胎儿肺总体积(TLV)和肺肝信号强度比(LLSIR)预测胎儿肺发育不良的应用价值. 资料与方法 回顾性分析40例随访胎儿的MRI表现.40例胎儿分为对照组(A组,n=20)和肺发育不良组(B组,n=20),采用感兴趣区测量所有胎儿的TLV和LLSIR并进行统计分析. 结果 对照组胎儿TLV为12.9~120.8 cm3,与孕周呈线性正相关 (r=0.931,P=0.000<0.01),随孕周增加而增加;对照组LLSIR为1.20~2.24,与孕周相关性不明显(r=0.479,P=0.033>0.01).肺发育不良胎儿TLV较正常胎儿明显减小(P=0.000<0.05),其中羊水过少的肺发育不良胎儿LLSIR明显减低(P=0.002<0.05). 结论 联合应用胎儿TLV和LLSIR能很好地预测胎儿肺发育不良.
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Fetus Pulmonary hypoplasia Magnetic resonance imaging Volume measurement Signal intensity
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