高b值磁共振弥散加权成像诊断前列腺癌的临床价值.doc

高b值磁共振弥散加权成像诊断前列腺癌的临床价值.doc高b值磁共振弥散加权成像诊断前列腺癌的临床价值王旭孟宪平费锋姜岐涛东南大学附属江阴医院MR室摘要:冃的探讨高b值的弥散加权成像(DWI)对前列腺癌的诊断价值。方法收集2014年5月2017年1月在东南大学附屈江阴医院行MRI扫描的67例疑诊前列腺癌患者,根据病理结果比较DWI(b二800,1500,2000s/mm2)诊断前列腺癌的敏感度、特异度、诊断符合率及受试者工作特征曲线下面积差异。结果高b值DWI诊断前列腺癌的诊断符合率、敏感度、特异度及AUC面积均高于常规b值DWT,差异有统计学意义,DWT(b=l500s/mm2)诊断前列腺癌敏感度高于DWI(b=2000s/mm2)。结论高b值DWI在前列腺癌诊断中具有较高价值,尤其1500s/mm2是诊断相对更佳的选择。关键词:前列腺癌;磁共振成像;作者简介:王旭(1982-),男,江苏东台人,医学硕士,主治医师,主要从事医学影像学诊断工作收稿日期:2017-03-19Diagnosticvalueofhighb-valuediffusion-weightedimaginginprostatecancerWANGXuMENGXianpingFEIFengJIANGQitaoDepartmentofMRI,JiangyinHospitalAffiliatedtoSoutheastUniversity;Abstract:ObjectiveToexplorethevalueofhighb--sevenpatientswithclinicalsuspicionofprostatecancerwerescannedwithMRI,allcaseswerepathologicaldiagnosisasthegoldstandard,andtheareasunderthecurves(AUCs),sensitivity,specificityandpredictivevaluedifferencesbetweenDWI(b=800,1500,2000s/mm2)(AUCs),sensitivity,specificityandpredictivevalueforhighb-valueDWIweresignificantlyhigherthanconventionalDWT,andthesensitivityforDWI(b二1500s/mm2)washighthanDWT(b=2000s/mm2).ConclusionThehighb-,1500s/:Prostatecancer;icresonanceimaging;Received:2017-03-19近年来磁共振常规T2WI>扩散加权成像(diffusionweightedimaging,DWI)、磁共振波谱成像(icresonancespectroscopy,MRS)及磁共振增强等检查技术的