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时间:2020-05-04
《MSCT 多期增强扫描对肝脏局灶性结节增生的诊断价值-论文.pdf》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、·136·中国中西医结合影像学杂志2014年旦箜鲞箜塑MSCT多期增强扫描对肝脏局灶性结节增生的诊断价值胡久民,邹文远,徐官珍,李胜(湖北医药学院附属卜堰市人民医院放射科,湖北十堰442000)[摘要]目的:探讨MSCT多期增强扫描对肝脏局灶性结节增生(focalnodularhyperplasia,FNH)的诊断价值。方法:回顾性分析经手术及穿刺活检病理证实的9例FNH患者lO个病灶的MSCT多期增强扫描表现。结果:9例中8例为单发病灶,1例多发。平扫9个呈低或稍低密度,1个等密度。平扫3个病灶见中央瘢痕;多期增强扫描7个病灶
2、见中央瘢痕,动脉期及门脉期瘢痕均未见强化,延迟期5个见中央瘢痕强化。增强扫描动脉期除中央瘢痕外,8个FNH病灶明显均匀强化,2个中等均匀强化;门脉期病灶密度下降,但均略高于或等于正常肝实质;延迟期病灶密度等于或略低于肝实质。动脉期4个病灶中心或周边见增粗的供血动脉,其中1个为肝动脉分支直接进入病灶中心,1个的供血动脉自病灶中心沿纤维间隔向周边呈放射状分布,另2个周边见供血动脉。结论:MSCF多期扫描可反映病灶的血供特点和病理学特征,对FNH具有重要的诊断及鉴别诊断价值。[关键词]局灶性结节状增生;肝;体层摄影术,x线计算机MSC
3、TmultiphaseenhancementscanninginthediagnosisofhepaticfocalnodularhyperplasiaHUJiurain,ZOUWen—yuan.XUGuan-zhen,eta1.DepartmentofRadiology,ShiyanPeople’SHospitalAffiliatedtoHubeiMedicalCollege,Shiyan,442000,China.[Abstract]Objective:ToevaluatethediagnosticvalueofMSCTmu
4、ltiphaseenhancementscanofhepaticfocalnodularhyperpla—sia(FNH).Methods:Retrospectiveanalysisof10lesionsof9FNHcasesconfirmedbysurgeryandbiopsypathologywithmultiphaseenhancedMSCTscanningwereperformed.Results:8of9casesofsinglelesions,1casewasmultiple.Scan9showedloworlowe
5、rdensity,onewithisodensity.Inhepaticarterialphaseofenhancedscanning,exceptthecentralscar,eightFNHlesionsshowedobvioushomogenousenhancement,2mediumhomogenousenhancement.Inportalvenousphase,lesionsdensitydecreased,butslightlyhigherthanorequaltOthenormalliverparenchyma.
6、Indelayphase,lesionsdensitywasequaltoorslightlybelowtheliverparenchyma.Inhepaticarterialphase,Fourlesionssawenlargementofbloodsupplyarteriessurroundingthecenterorshadows,oneforthehepaticarterybranchdirectlyintotheheartofthelesions,llesionbloodsupplyarteryofthelesionc
7、enteralongthefiberspacingtOperipheralradialdistribution,theothertwosawbloodsupplyarterylesionsaround.Scan3lesionsshowedcentralscar,multiphaseenhancementscan7lesionsshowedcentralscar.hepaticarterialandportalvenousphaseofthescarwerenoenhancement,delayfivecentralscarenh
8、ancement.Conclusion:MSCTmuhiphaseenhancementscancanreflectbloodsupplyandpathologicalfeaturesoflesions,diagnosisanddifferentialdiagn
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