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时间:2020-06-03
《MRI平扫联合DWI对乳腺良恶性病变诊断价值分析.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、MMIBIMONTHLYVol23No.3Jun2014—195一MRI平扫联合DWI对乳腺良恶性病变诊断价值分析河南科技大学附属三门峡黄河医院MlqI科,乳腺科,病理科。(河南三门峡472000)荆彦平高峥嵘骆宾吴孔兴张俊南晓东李景刚郭影【摘要】目的:探讨MRI平扫联合DWI对乳腺良恶性病变的诊断价值。材料与方法:对病理证实的70例患者MRI常规平扫、扩散加权成像(DWI)及表观扩散系数(ADC)值进行回顾性分析,所有病例均采用SETWI、FSET2WI压脂序列、单次激发自旋平面一回波成像(SE—EPI)序列行DWI扫描,扩散敏感系
2、数(b值)取lO00s/mm。结果:70例病变中,乳腺癌49例,乳腺腺瘤19例,积乳囊肿2例。MRI平扫诊断乳腺良恶性病变的敏感性为61.2%(30/49),特异性为19%(4/21),准确性为48.6%(34/70)。以病变信号对乳腺良恶性诊断检出率比较无统计学意义(P>0.05)。以恶性病变平均ADC值95%可信区间的上界1.203×10mm/s作为诊断良、恶性病变的界值,所得结果与病理结果比较,诊断敏感性为87.8%(43/49),特异性为85.7%(18/21),准确性为87.1%(61/70)。MRI平扫联合弥散加权成像AD
3、C值综合诊断的敏感性为93.8%(46/49),特异性为90.5%(19/21),准确性为92.8%(65/70)。结论:DWI及ADC值是诊断和鉴别诊断乳腺良、恶性病变的有价值方法;MRI平扫结合DWI成像能明显提高乳腺良恶性病变诊断准确性。关键词:乳腺癌磁共振成像扩散加权成俦AnalysisofDiagnosticValueofMRIPlanScanCombinationDWIinBreastBenignandMalignantLesionsJingYanpingGaoZhengrongLuoBinWuKongxingZhangJ
4、unNanXiaodongLiJinggangGuoYing1.MRDepartment,TheAffiliateHuangheSanmenxiaHospitalofHenanUniversityofScienceandTechnology;4720002.MammaryglandDepartment;3.PathologyDepartment【Abstract】Purpose:Tostudythediagnostic、alueofMRIplanscancombinationDWIinbreastbenignandmalignantl
5、esions.MaterialsandMethods:Inthe70casesofbreastlumpsprovedbypathologyandsurgerywereretrospectivelyana-lyzed.ExaminedroutineMRIscan,difusionweightedimaging(DWI)andapparentdifusioncoefficientvalue(ADC),pre-operatively,allcasesusingSET1WI,FSET2WIpressurefatseries,singleexc
6、itationplane—spinechoimaging(SE—EPI)toDWIscans,spreadsensitivecoeficientwas(b1000s,/mm).Results:Amongthe70cases,49caseswasbreastcancer,mammaryglandadenoma19cases,breastcyst2cases.ThesensitivityofMRIplanscanindiagnosisofbenignandmalignantbreastlesionswas61.2%(30/49),spec
7、ificitywas19%(4/21),accuracywas48.6%(34/70).Tosignalforbreastbe—nignandmalignantdiagnosisdetectionrateisnostatisticalsignificance(P>0.05).WithaverageADCvaluesofmalignantupperboundofthe95%confidenceinterval1.203x19~astheboundaryvalueofthediagnosisofbenignandmalignantle·s
8、ions,andresultscomparedwiththepathologicalresults,diagnosticsensitivitywas87.8%(43/49),specificitywas85.7%(18/
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