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时间:2018-11-02
《细胞外基质体积分数对肝纤维化的诊断价值》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、细胞外基质体积分数对肝纤维化的诊断价值杨璐翟亚楠卢世瑞郭顺林兰州大学第一临床医学院兰州大学第一医院放射科兰州大学第二临床医学院导出/参考文献关注分亨收藏打印摘要:目的确定非肝纤维化患者与肝纤维化患者肝细胞外基质体积分数(fECV)的差异性,探讨fECV对肝纤维化的诊断价值。方法[H]顾性调阅常规肝脏三期动态CT增强扫描的住院病人,其中临床诊断肝纤维化患者152例(病例组),无肝纤维化患者161例(对照组)。通过平扫及平衡期(注射造影剂3min后)计算肝实质绝对强化值(Eliver)及主动脉绝对强化值(Eaorta),计算fECV。分析病例组与对
2、照组fECV和Eorns指数的差异以及fECV与Forns指数模型的相关性,采用受试者工作特征曲线评价fECV诊断肝纤维化的能力。结果病例组fECV和Forns指数均大于对照组(P<0.05);fECV与Forns指数呈正相关(r=0.305,P<0.01);当£6(^〉31.07%吋,fECV诊断肝纤维化的灵敏度、特异度分别为0.816、0.609,曲线下面积为0.770。结论利用常规肝脏三期动态增强CT检查及血常规检查,得到的fECV可以无创性评估肝纤维化,诊断价值中等。关键词:肝纤维化;计算机断层扫描;肝细胞外基质体积分数;Forns指数
3、;作者简介:郭顺林,男,博士,教授,研究方向为CT与MRT诊断;c-mail:guoshunlin@msn.com;收稿日期:2017-05-11基金:兰州大学大学生创新创业行动计划项目(20161073001214)DiagnosticvalueofhepaticextracellularvolumefractionsforliverfibrosisYangLuZhaiYa_nanLuShi-ruiGuoShun-linFirstSchoolofClinicalMedicine,LanzhouUniversity;DepartmentofRa
4、diology,FirstHospitalofLanzhouUniversity;SecondSchoolofClinicalMedicine,LanzhouUniversity;Abstract:ObjectiveToinvestigateintothevalueofhepaticextracellularvolumefractions(fECVs)measuredusingroutinelivercomputedtomography(CT)forevaluatingliverfibrosis(LF).MethodsAtotalof313ho
5、spitalizedpatientsundergoingmultiphasicliverCTfrom2012to2016intheFirstHospitalofLanzhouUniversitywereretrospectivelyresearchedinto.Amongthem152patientswereclinicallydiagnosedwithliverfibrosis.Absoluteenhancements(intheHounsfieldunit)oftheliverparenchyma(Eliver)andaorta(Eaort
6、a)3minutesaftercontrastadministrationhavingbeeninjectedwerecalculatedusingprecontrastanclequilibriumphasescans.ThefECVwascalculatedusingthefollowingequation:fECV(%)=Eliver(100-Haematocrit[%])/Eaorta.ThedifferenceoffECVsandFornsindexbetweenthecasegroupandthecontrolgroupandthe
7、correlationbetweenfECVandFornsindexwereevaluated.ThediagnosticperformanceoffECVwasassessedusingthereceiveroperatingcharacteristic(ROC)curve.ResultsThefECVsandFornsindexweresignificantlydifferent(P<0.05)betweenthecasegroupversusthecontrolgroup.ThefECVsshowedasignificantcorrel
8、ationwithFornsindex(r=0.305,P〈0.01).WhenthefECV>31.07%,thesensitivityandspe
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