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大小:1.11 MB
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时间:2019-08-05
《肝脏炎性假瘤的动态增强CT及MR扫描(附17例分析)》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、维普资讯http://www.cqvip.com·390·中国临床医学影像杂志2005年第16卷第7期JChinClinMedImaging,2005,Vol16,No.7肝脏炎性假瘤的动态增强CT及MR扫描(附17例分析)刘岘,刘波,谭四平,吴珊珊,魏光师(广州中医药大学附属第二医院放射科,广东广州510505)【摘要】目的:探讨肝脏炎性假瘤的CT、MR表现特点及其诊断价值。材料与方法:回顾性分析17例肝脏炎性假瘤的临床资料及CT、MR动态增强扫描表现,对其影像表现和病理学检查结果进行对照。结果:17例患者共发现20个
2、病灶。CT动态增强扫描显示肝脏炎性假瘤的强化方式多样,其中动脉期呈轻微强化(4例)或无强化(7例);门脉期及延迟扫描常有一定程度强化,常见强化形式为边缘环状强化(7例)或中心点状强化(3例)或偏心状强化(1例)。MR平扫T,WI显示病灶为低信号、略低信号或等信号,TWI为等信号或高信号。团注Gd—DTPA后,病灶的强化形式与CT动态增强表现相似。结论:肝脏炎性假瘤的强化方式反映了其病理学特征,CT、MR动态增强扫描对其鉴别诊断有重要的价值。【关键词】肉芽肿,浆细胞;肝疾病;体层摄影术,X线计算机;磁共振成像【中图分类号】
3、R735.7;R814.42;R445.2【文献标识码】A【文章编号】1008一l062(2005)07-0390-04DynamicCTandMRscanningofinflammatorypseudotumoroftheliver(analysisof17cases)LIUXian,LIUBo,TANSi-ping,UShah-shah,WEIGuang-shi(DepartmentofRadiology,SecondAfiliatedHospital,GuangzhouUniversityofTraditional
4、ChineseMedicineGuangzhou510505,China)Abstract:Objective:ToinvestigateCTandMRcharacteristicsandvalueofinflammatorypseudotumoroftheliver(IPL).MateriaIsandMethods:CTandMRIfeaturesofIPLandclinicalmaterialsof17patientswerereviewed.A1lthelesionswereprovedbyaspirationne
5、edlebiopsyspecimensguidedbyCTandultrasound,orsurgery.CTandMRdynamicscanswereanalyzedforappearanceofthemassesandancillaryfindingsincorrelationwithhistopathologicfindings.Results:Therewere20lesionsdetectedin17cases.OndynamicCTscanning,IPLdemonstratedasslightenhance
6、mentf4cases1andnon—enhance—ment(7cases)inarterialphase.Inporto-venousphaseanddelayedphase,thelesionsoftendemonstratedring—enhancement(7cases)andcentricenhancement(3cases)andeccentricenhancement(1case).OnMRTlWIlesionswerehypointense,slightlyhypointenseorisointense
7、relativetotheliver,andonT2wItheywereisointenseorhyperintense.AfterbolusinjectionofGd—DTPA,enhancementpatternofIPLwassimilartothatofdynamicenhancedCT.Conclusion:DynamicenhancedCTandMRimagesofIPLcanreflectitshistopathologiecharacteristics.andhasofdifferentialdiagno
8、sticvalue.Keywords:granuloma,plasmacell;liverdiseases;tomography,X—raycomputed;magneticresonanceimaging肝脏炎性假瘤(IPL)是一种少见的肝脏良性肿厚8-10mm,增强扫描采用静脉团注动态三期扫瘤,其影像学表现多样且
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