影像技术2024年第2期影像检查技术影像检查技术基于冠状动脉CT的FFR在冠心病患者临床诊断中对诊断灵敏度及特异度的影响研究徐天佩,江永尧,李叶明(东莞市第八人民医院(东莞市儿童医院)放射科,广东523000)摘要:目的:分析基于冠状动脉CT的血流储备分数(FFR)在冠心病患者临床诊断中对诊断灵敏度及特异度的影响。方法:此次研究总共纳入48例研究对象,均是2020年12月-2022年12月到我院诊治的疑似冠心病患者,均接受冠状动脉造影检查(CAG)、冠脉CT造影检查(CCTA)下测定FFR值检查。将CAG作为参照标准,统计CCTA下测定FFR值的诊断效能。结果:将CAG作为参照标准,48例疑似冠心病患者经CT-FFR检查后,真阳38例,假阳1例,真阴5例,假阴4例。CT-FFR诊断冠心病的敏感度为90.48%(38/42),特异度为83.33%(5/6),准确率为89.58%(43/48)。在冠心病检出率上,CT-FFR检查低于CAG检查,对比差异有统计学意义(P<0.05)。结论:CT冠脉造影下测定FFR值用于冠心病的临床诊断效果良好,诊断敏感度与特异度较高,可作为临床诊断冠心病的辅助手段,临床可进一步推广应用。关键词:冠心病;基于冠状动脉CT的FFR;灵敏度;特异度中图分类号:R541.4;R816.2文献标识码:ADOI:10累3969/j.issn.1001-0270.2024.02.02StudyontheImpactofFFRBasedonCoronaryCTArteryonDiagnosticSensitivityandSpecificityinClinicalDiagnosisofCoronaryHeartDiseasePatientsXUTian-pei,JIANGYong-yao,LIYe-ming(DepartmentofRadiology,DongguanEighthPeople'sHospital(DongguanChildren'sHospital),Guangdong523000,China)Abstract:Objective:ToanalyzetheimpactofcoronaryarteryCTbasedbloodfractionalflowreservefraction(FFR)ondiagnosticsensitivityandspecificityinclinicaldiagnosisofcoronaryheartdiseasepa�tients.Methods:Atotalof48studysubjectswereincludedinthisstudy,allofwhomweresuspectedcoro�naryheartdiseasepatientswhovisitedourhospitalfromDecember2020toDecember2022.Theyunder�wentcoronaryangiography(CAG)andFFRvaluemeasurementundercoronaryCTangiography(CCTA).UsingCAGasareferencestandard,thediagnosticefficacyofmeasuringFFRvaluesunderCCTAwassta�tisticallyanalyzed.Results:UsingCAGasthereferencestandard,afterCT-FFRexaminationof48sus�pectedcoronaryheartdiseasepatients,therewere38casesoftruepositive,1caseoffalseposi...