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1、肺灌注断层显像和平面显像对肺栓塞诊断的价值研究［摘耍］冃的:评价肺灌注断层显像对肺栓塞(PE)的诊断价值。方法:对76例确诊为PE的患者进行肺灌注断层和平而显像，次II行肺通气显像，显像结果和CT肺动脉造影(CTPA)进行对比分析。结果:在76例PE患者中，肺灌注断层显像阳性72例，检出率为94.7%;肺灌注平面显像阳性64例,检出率为84.2%,两种方法PE检出率差异有统计学意义(P<0.05)°76例患者中,CTPA显示受累肺段为329个，肺灌注断层显像示314个肺段阳性，肺灌注断层显像与CTPA的符合率为95.4%;肺灌注平面显
2、像示261个肺段阳性,两者符合率为79.3%,两符合率比较，爰异有高度统计学意义(P〈0.01)o结论:肺灌注断层显像能显著提高对PE的诊断率，可作为诊断PE的常规筛查方法。［关键词］肺栓塞;核素肺灌注显像;CTPA［中图分类号］R445・5［文献标识码］B［文章编号］1673-7210(2010)02(a)-067-02TheroleoflungperfusiontomographyinthediagnosisofpulmonaryembolismincomparisonwithplanarperfusionimagingIJUYa
3、nl,MAOYimin2,HUBini*(1・DepartmentofNuclearMedicine,theFirstAffiliatedHospitalofHe，nanScienceandTechnologyUniversity,Luoyang471003,China;2.DepartmentofRespiratoryMedicin®theFirstAffi1iatedHospitalofHe"nanScicnccandTechnologyUniversity,Luoyang471003,Chirm)［Abstract］Object
4、ive:Toevaluatetheclinicalvalueoflungperfusiontomographyinthediagnosisofpulmonaryembolism(PE).Methods:Lungperfusiontomographyandplanarimagingweredonein76patientswithplanarperfusionimagingofPE・TheresultswerecomparedwiththoseofspiralCTpulmonaryarteriography(CTPA).Results:A
5、mongallthe76patientswithlungperfusiontomographyandplarmrimaging,thedetectionratesofPEwere94.7%(72cases)and84.2%(64cases)respectively.Therewasasignifiedntdifferencebetweenthetwomethods(P〈0.05)•Therewere329abnormalsegmentsinthe76patientswithCTPAresults.Thelungperfusiontom
6、ographywere314abnormalsegmonts,witha95.4%coincidentrato・Thelungplanarperfusionimagingwere261abriormalsegments,witha79.3%coincidentrate.Detectionrateshowedasignificantdifference(P<0・01)・Conelusion:ThelungperfusiontomographyconimprovetheperformaneeofdiagnosisofPEnotably,a
7、nditwillbecomethefirstelectionroutineinthediagnosisofPE・［Keywords］Pulmonaryembolism;Lungperfusionimaging;CTPA肺栓塞是国际性的重要医疗课题［1］,我国肺栓塞(pulmonaryembolism,PE)的发病率逐年上升，病死率居第3位，仅次于恶性肿瘤和心肌梗死［2］。冃前认为肺通气/灌注(lungventilation/perfusionscintigraphy,V/Q)多体位平tfri显像是诊断PE的首选筛杏方法［3］,但其检出
8、率仅为50%〜80%［4］o本研究针对已确诊为PE的76例患者进行肺灌注平面显像，随后行断层显像，评判肺灌注断层显像对PE的诊断价值。1资料与方法1.1一般资料本组共观察76例患者，其中，男性49例，女性27例;平均年龄
