70·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】张楠，女，硕士研究生，主要研究方向：胸部影像诊断。E-mail：528014232@qq.com【通讯作者】乔英，男，主任医师，主要研究方向：胸腹部影像诊断。E-mail：15103462912@163.com论著DiagnosticValueofDual-DetectorSpectralCTinSolitaryBenignandMalignantPulmonaryNodules*ZHANGNan1,TIANBing2,TIANXiao-juan2,QIAOYing2,*.1.DepartmentofMedicalImaging,ShanxiMedicalUniversity,Taiyuan030001,ShanxiProvince,China2.DepartmentofImaging,theFirstAffiliatedHospitalofShanxiMedicalUniversity,Taiyuan030001,ShanxiProvince,ChinaABSTRACTObjectiveToinvestigatethediagnosticvalueofdualdetectorspectralCTparametersinsolitarybenignandmalignantpulmonarynodules.MethodsFromSeptember2019toJune2021,58patientswithisolatedpulmonarynoduleswereretrospectivelyandconsecutivelyenrolled.Dual-phasedual-energyCTscanswereperformedbeforesurgeryortreatment.Pathologicalresultswerefoundinall58patientswithpulmonarynodules.Quantitativemeasurementofiodineconcentration(IC)andeffectiveatomicnumber(E-FFZ)inlesionsandsurroundinglungtissueswascarriedoutbasedondual-energyCTiodinemapandeffectiveatomicnumbermap.TheabovequantitativedatawerecomparedbetweenbenignandmalignantlunggroupsbyindependentsampleT-testandrank-sumtest.Diagnosticaccuracywasevaluatedbyreceiveroperatingcharacteristic(ROC)analysis.ResultsAmong58pulmonarynodules,43weremalignantand15werebenign.Fortheinsideofnodule,thedifferenceofstandardizediodineconcentrationinarterialphasebetweenthetwogroupswasstatisticallysignificant,thestandardizediodineconcentrationinmalignantgroupwashigherthanthatinbenigngroup,NICinvenousphaseandplainscanE-FFZwerenostatisticallysignificantdifferenceinbetweenthetwogroups.Asfortheinfluenceofpulmonaryperfusionadjacenttobenignandmalignantnodules,ICandE-FFZatthelesionsideatthearteriovenousstagehadstatisticalsignificancebetweenthetwogroups,andthedifferenceofquantitativedataatthecorrespondingpositionbetweenthelesionsideandtheoppositesidealsohadstatisticalsignificance.Theareaunderthedifferencecurveof...
