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国人肾下段下腔静脉测量及分析 总被引:9,自引:0,他引:9
目的:探讨正常国人肾下段下腔静脉(IVC)CT测量值,为国产下腔静脉滤器的设计及放置提供依据。材料与方法:对100例正常国人用CT机分别测量平静呼吸及Valsalva动作后肾下段下腔静脉长轴、短轴两组数据。结果:平静呼吸时IVC修正后直径的几何均数为19.37mm(14.30~24.40mm),呈偏态分布,与体表面积无直线相关关系。性别和各年龄组间IVC修正直径值无显著差异(P>0.05)。Valsalva动作后IVC修正直径的几何均数为21.23mm(15.60~28.70mm)。经t检验,Valsalva动作后IVC修正直径显著大于平静呼吸时IVC的修正直径(P<0.05)。结论:CT可以直接测量生理状态下IVC大小和变化,具有简便和准确的特点。为避免对IVC大小估计不足,放置下腔静脉滤器时应以Valsalva动作时的修正直径作为参考。 相似文献
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Several congenital anomalies of the portal vein and inferior vena cava (IVC) have been reported; however, reports of a congenital communication between the portal vein and IVC are few. We report a patient who was found to have a natural shunt between the extrahepatic portal vein and the IVC that was discovered when she underwent a right hepatic lobectomy for an undifferentiated liver sarcoma. The patient also had agenesis of the right kidney. We have not been able to find a similar case reported in English literature. 相似文献
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