文档介绍：肝内门静脉螺旋CT成像诊断肝炎肝硬化
作者:李毅红魏经国王耀程梁国民孙巧黎王新疆潘爱国
【关键词】肝硬化
关键词: 肝硬化;螺旋CT;门静脉造影术;对比研究
摘要:目的探讨螺旋CT肝内门静脉血管成像对肝炎肝硬化(LC)的诊断价值. 方法对26例LC患者和30例正常人进行螺旋CT门静脉系统血管成像,・kg-1 ,注射速率3mL・s-1 ,层厚3mm,床速5mm・s-1 ,重建层厚2mm,,于门静脉主干及其1,2级分支、肝右前叶上段、肝左外下段门静脉分支分叉处总干近心端测量其血管短径,并计算各分级间比值,于脾门处测量脾静脉血管短径. 结果 56例均清楚显示门静脉主干及其右前上段、(spiral CT portography,SCTP)显示门静脉分支级数减少,多为3,4级,正常对照组多为4~7级,±,±(P<).门静脉主干及右1,2级分支增粗,其短径分别为(±)mm,(±)mm和(±)mm,右前上段3级以下分支变细、扭曲、僵直,呈“枯树枝”状,3级分支管径为(±)mm,正常组门静脉主干、右1,2级分支及右前上3级分支管径分别为(±)mm,(±
)mm,(±)mm和(±)mm,两组对比差异显著(P<);LC组门静脉左支角部、矢状部、左外下2级分支增粗,其短径分别为(±)mm,(±)mm,(±)mm,正常对照组分别为(±)mm,(±)mm,(±)mm,两组对比差异显著(P<);病变组门静脉右前段1/2级、右前上段2/3级短径比值增大,±,±,±,±,两组对比差异显著(P<).右前上段3/4~4/≥,%,%,%.肝硬化组脾静脉迂曲扩张,其短径为(±)mm,正常对照组为(±)mm,两组对比差异显著(P<). 结论肝炎肝硬化SCTP显示门静脉血管变化具有特征性表现,且有无创、直观、≥.
Keywords:liver cirrhosis;spiral CT;portography;contrast research
Abstract:AIM To evaluate the spiral CT portography(SCTP)of intrahepatic portal vein in diagnosis of posthep-atitic SCTP was performed in26cir-rhotic cases and30normal intensity projection(MIP)was conducted with the
parameters as fol-lows:・kg-1 contrast,3mL・s-1 injection speed,3mm slice thickness,2mm reconstruction,and5mm・s-1 table reconstruction images,the minor calibers of portal vein were measured at proximal level of portal truck,grade1,2tributaries,venous ramification at upper segment of right anterior lobe,as well as lower segment of left exteri-or minor caliber ratios of graded tributaries were also ,the minor caliber of spleen vein was measured at spleen hil