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1、MSCT肺动脉造影联合间接法下肢静脉造影技术探讨作者：岑人丽邓宇陈苓曾庆思李新春林翰菲张超亮【摘要】临床怀疑肺动脉栓塞患者，按间接法下肢静脉CTV延时时间的不同，随机分为两组，每组各20例。用对比剂跟踪技术(SureStar),先进行MSCT肺动脉造影，然后行下肢静脉造影扫描，A组延迟180~210s扫描；B组延迟240~270s扫描。扫描后分别测量骼总静脉、股静脉、胭静脉的强化CT值。结果40例患者肺动脉均显示清晰。A组骼总静脉CT值平均为115.45±12.95Hu,股静脉CT值平均为110.05±10
2、.82Hu,®静脉CT值平均为121.85±17.37Hu;B组骼总静脉CT值平均为103.05±13.50Hu,股静脉CT值平均为103.05+8.83Hu,胭静脉CT值平均为111.30±11.79HuoA组与B组比较存在显著性差异(P<0.05),A组静脉内的造影剂浓度高于B组。诊断肺栓塞18例，合并下肢静脉血栓10例。结论MSCT肺动脉造影联合间接法下肢静脉造影时，应用对比剂跟踪触发扫描技术(SureStar)肺动脉显示良好，延迟180~210s扫描能获得更好的下肢静脉成像效果。【关键词】肺栓
3、塞静脉血栓形成体层摄影术X线计算机静脉造影术动脉造影术[Abstract]ObjectiveToinvestigatetheclinicalapplicationofCTpulmonaryangiographycombinedindirectmethodoflowerextremityvenousimagingtechniques・MethodsFortypatientssuspectedofpulmonaryembolismwererandomlydividedinto2groups(groupAandB
4、)bydifferentdelayCTVtimeofindirectmethodoflowerextremity,Al1patientsundergoneCTArteriographybyconstrastmediumSureStartechnique,Afterthis,IngroupA(n=20),CTvenographylowerextremitywereperformedby180210sdelaytime;IngroupB(n=20),CTvenographyoflowerextremitywer
5、eperformedby240270sdelaytime.TheenhancementCTvalueofcommoniliacvein,femoralveinandpoplitealveinweremeasuredrespectively.ResultsPulmonaryarteryof40casesweredemonstratedclearly,IngroupA，theCTmeanvalueofcommoni1iacvein,femoralveinandpoplitealveinare115.45±12.
6、95Hu,110.05±10.82and121.85土17.37Hu;TngroupB,theCTmeanvalueofcommoni1iacvein,femoralveinandpoplitealveinare103.05±13.50Hu,103.05±8.83Huandlll.30±11.79Hu,TheCTvalueofcommoni1iacvein,femoralveinandpoplitealveinbetweengroupAandgroupBwasfoundstatisticallysignif
7、icantlydifferent(P&It;0.05).TtsuggestedthatcontrastconcentrationofveiningroupAwashigherthantheseingroupB.18casespulmonaryembolismwerediagnosed,10caseswithpulmonaryembolismaccompanyingvenousthrombosiswerediagnosed・ConclusionUsingconstrastmediumSureStartechn
8、iquecandetectthepulmonaryarteryclearly,delay180-210Sscancanobtainbetterimagethelowerextremityvein.[Keywords]pulmonaryembolism;venousthrombosis;bodysectionradiography;X-raycomputed;venography;Arteriography肺动脉栓
