24·中国CT和MRI杂志2023年02月第21卷第02期总第160期【第一作者】何晓清，男，副主任医师，主要研究方向：脑血管疾病、心脏大血管疾病的CT诊断及双能量成像技术的临床应用。E-mail:85301219@qq.com【通讯作者】成官迅，男，主任医师，主要研究方向：心脏大血管及骨关节系统疾病的CT与MRI诊断。E-mail:18903015678@189.cn论著EarlyDifferentialDiagnosisofContrastMediumExtravasationandHemorrhageafterInterventionalTherapyofIschemicStrokebyDualSourceCTDualEnergyImaging*HEXiao-qing1,LIANGHan-huan1,HUANGDan-dan2,HUANGHan-ning2,DENGLing-bo3,XIETing-ting3,CHENGGuan-xun3,*.1.Departmentofmedicalimaging,Gaozhoupeople'sHospital,Gaozhou525200,GuangdongProvince,China2.DepartmentofNeurology,people'sHospitalofGaozhouCity,Gaozhou525200,GuangdongProvince,China3.Departmentofmedicalimaging,ShenzhenHospital,PekingUniversity,Shenzhen518036,GuangdongProvince,ChinaABSTRACTObjectiveToinvestigatethevalueofdualsourceCTdualenergyimaginginthedifferentialdiagnosisofcontrastagentextravasationorbleedinginpatientswithischemicstrokeafterinterventionaltherapy.MethodsAtotalof165patientswithischemicstrokewhounderwentinterventionaltherapywereretrospectivelyanalyzed,andDSCTdualenergyimagingtechnologywasusedforheadCTscanningwithin1hours.Thesensitivity,specificity,misdiagnosisrate,misseddiagnosisrate,positivepredictiverate,negativepredictiverateanddiagnosticaccuracyofdualenergyCTimaginginthedifferentialdiagnosisofpostoperativehemorrhageandcontrastagentextravasationwereevaluatedaccordingtotheimagingfollow-upexaminationandfinalclinicaldiagnosisresults24to72hoursafterintervention.TheradiationdosereceivedbypatientswithdualenergyCTimagingtechnologyandconventionalCTscanningwascompared.ResultsIn165patients,thesensitivity,specificity,misdiagnosisrate,misseddiagnosisrate,positivepredictivevalue,negativepredictivevalueanddiagnosticaccuracyofdualenergyCTwere100%,92.38%,7.62%,0%,88.24%,100%and95.15%,respectively;Thesensitivity,specificity,misdiagnosisrate,misseddiagnosisrate,positivepredictivevalue,negativepredictivevalueanddiagnosticaccura...
