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ID:5417426
大小:1.26 MB
页数:6页
时间:2017-12-10
《dwi对脑出血的诊断及鉴别诊断》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、万方数据实用放射学杂志2014年9月第30卷第9期JPractRadi01,Sep.2014,V01.30,No.9DWI对脑出血的诊断及鉴别诊断张华文,周欣,梁浩然,赵宁(陕西省核工业二一五医院影像科,陕西咸阳712000)摘要:目的探讨脑出血(ICH)不同时期磁共振扩散加权成像(Dwl)信号特点及表观扩散系数(ADC)值变化规律。方法回顾性分析56例经CT证实的ICH患者MR图像,结合出血时间进行分期,分析各期MR信号特点,并测量血肿内部及健侧对应部位ADC值,对各期ADC值做统计学分析。结果超急性期、亚急性晚期、慢性期血肿DwI大部为高信号,其中超急性期血肿边缘见低信号环;
2、急性期、亚急性早期DwI以低信号为主,边缘见高信号环;各期患侧ADC值与健侧比较均明显下降,其中急性期和亚急性晚期下降幅度最大;除慢性期外双侧ADc值比较均有显著性差异(P3、htedimagingindiagnosisanddifferentialdiagnosisofintracranialhemorrhageZHANGH““训P,2,ZHOUXin,LIANGHnor&咒,ZHAONi咒g(Dep以仃mP门fo厂RndioZogy,N“fZP口rJ行d“sfry215Hos户i£口Zo厂S矗以以”ziProui”fP,XinnyⅡ九g,S矗“乜,2jriProui,2fP712000,C丘i门口JAbstract:0bjectiveToinvestigatethesignalcharacteristicsondiffusi()n—weighted4、imaging(DWI)andchangesoftheapparentdiffusioncoefficient(ADC)valuesofintracerebralhemorrhageatthedifferentstages.Methods56patientswithintracerebralhemorrhageconfirmedbyCTscanwereenrolledinthisretrospectivestudy.ThesignalcharacteristicsofthehemotomasatthedifferentstagesonMRlwereanalyzed.TheADCv5、aluesinthehematomasandthecontralateralnormalregionsweremeasuredandanalyzedstatisticaUy.ResultsDWIshowedthathematomaswerehighsignalatthehyperacute,latesubacuteandchronicstage,andlowsignalattheacuteandearlysubacutestage.Hyperintensityringssurroundingthehemat。mawerepresentedatthehyperacutestage,6、andhy—pointensityringsattheacuteandearlysubacutestage.C。mparedwiththecontralateralnormalregions,theADCvaluesinthehema—tomasdecreasedatallthestages,andespeciallyattheacuteandlatesubacutestage.Thedifferencesweresignificant(P·7、hemorrhageatdifferentstageshavecertaincharacteristics.TheADCvalueinthecenterofthehematomadecreased.DWIcandifferentiateintracerebralhemorrhagefromacutecerebrallnfarc—tion,andishelpfulforearlyclinicaltreatment.Keywords:intracerebralhemorrhage;a
3、htedimagingindiagnosisanddifferentialdiagnosisofintracranialhemorrhageZHANGH““训P,2,ZHOUXin,LIANGHnor&咒,ZHAONi咒g(Dep以仃mP门fo厂RndioZogy,N“fZP口rJ行d“sfry215Hos户i£口Zo厂S矗以以”ziProui”fP,XinnyⅡ九g,S矗“乜,2jriProui,2fP712000,C丘i门口JAbstract:0bjectiveToinvestigatethesignalcharacteristicsondiffusi()n—weighted
4、imaging(DWI)andchangesoftheapparentdiffusioncoefficient(ADC)valuesofintracerebralhemorrhageatthedifferentstages.Methods56patientswithintracerebralhemorrhageconfirmedbyCTscanwereenrolledinthisretrospectivestudy.ThesignalcharacteristicsofthehemotomasatthedifferentstagesonMRlwereanalyzed.TheADCv
5、aluesinthehematomasandthecontralateralnormalregionsweremeasuredandanalyzedstatisticaUy.ResultsDWIshowedthathematomaswerehighsignalatthehyperacute,latesubacuteandchronicstage,andlowsignalattheacuteandearlysubacutestage.Hyperintensityringssurroundingthehemat。mawerepresentedatthehyperacutestage,
6、andhy—pointensityringsattheacuteandearlysubacutestage.C。mparedwiththecontralateralnormalregions,theADCvaluesinthehema—tomasdecreasedatallthestages,andespeciallyattheacuteandlatesubacutestage.Thedifferencesweresignificant(P·7、hemorrhageatdifferentstageshavecertaincharacteristics.TheADCvalueinthecenterofthehematomadecreased.DWIcandifferentiateintracerebralhemorrhagefromacutecerebrallnfarc—tion,andishelpfulforearlyclinicaltreatment.Keywords:intracerebralhemorrhage;a
7、hemorrhageatdifferentstageshavecertaincharacteristics.TheADCvalueinthecenterofthehematomadecreased.DWIcandifferentiateintracerebralhemorrhagefromacutecerebrallnfarc—tion,andishelpfulforearlyclinicaltreatment.Keywords:intracerebralhemorrhage;a
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