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时间:2019-03-06
《乳腺癌新辅助化疗早期肿瘤直径mri变化率和病理分级评价化疗疗效的意义》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、中华放射学杂志2010年5月第44卷第5期ChinJRadiol,May2010,Vo1.44,No.5·455·.胸部放射学.乳腺癌新辅助化疗早期肿瘤直径MRI变化率和病理分级评价化疗疗效的意义秦乃姗王霄英武春雪郭丽叶京明张虹【摘要】目的探讨乳腺癌新辅助化疗早期肿瘤最大径变化率,以及肿瘤治疗前和术后组织病理学变化,评价化疗疗效的意义。方法49例乳腺癌患者,新辅助化疗前和术后均具有完整的组织病理结果;新辅助化疗前和化疗第2周期后及术前行3次乳腺增强MR检查,分别于注入对比剂前和注药后连续采集8次(8个时相)。注射对比剂后2min的图像与蒙片减影后行MIP重组。在MIP
2、图像上测量肿块的最大径线(Ad),根据Ad值将直径变化率分为6级。根据实体肿瘤的疗效评价标准(RECIST)设AdI>30%为金标准,通过ROC分析观察△d早在判断疗效时的敏感度和特异度。病理分级与RECIST标准问进行Spea,man相关分析。结果新辅助化疗有效30例,无效19例。Ad≥10%时,评价疗效的敏感度为96.7%(29/30),特异度为84.2%(16/19);曲线下面积0.960。病理分级与RECIST标准问具有相关性(r0.613,P=0.000)。结论新辅助化疗早期通过直径评价疗效,将阈值设为10%,其敏感度和特异度均较高。病理评价疗效与RECIS
3、T径线评价疗效间具有一定相关性,但病理评价会导致高估疗效。【关键词】抗肿瘤联合化疗方案;磁共振成像;摄影测量法;病理学BreasttumordiameteronM砌andhistologicalgradingsystemforpredictingresponsetoneoadjuvantchemotherapyQmNai—shan,WANGXiao—ying,删Chun—x,ue,GUOLi,YEJing—ming,ZHANGHong.DepartmentofRadiology,PekingUniversityFirstHospital,Beijing100034,C
4、hina【Abstract】0bjectiveToassessthevalueofinitialMRImeasurementsofbreasttumordiameterandpathologicalresponsesforpredictingresponsetoneoadjuvantchemotherapy(NAC).MethodsForty—ninepatientswhounderwentneoadjuvantchemotherapywereincludedinthisstudy.ThelongestdiameterofeachtumorwasmeasuredonM
5、RIbeforeandaftertwocyclesofNACandjustbeforeoperation.PathologicalresponseswereevaluatedbyMillerandPaynegradingsystemcriteriabycomparingpost—operationbreasttissuewithlargecorebiopsytissue.ChangesofdiameteraftertwocyclesofNACandbeforeoperationwerecomparedandpathologicalresponseswereevalua
6、ted.ROCandspearmancorrelationanalysiswasused.ResultsThesensitivityandspecificityofinitialdiameterforpredictingresponsetoNACwere96.7%(29/30)and84.2%(16/19).Therewasamoderatecorrelationbetweenpathologicalresponsesanddiametermeasuredpre—operation(r=0.613,P=0.000).ConclusionTheinitialdiamet
7、erchangesofbreasttumorcouldpredictresponsetoneoadjuvantchemotherapy,pathologicalresponsehavemoderatecorelationwithchangesoftumordiameter.【Keywords】Antineoplasticcombinedchemotherapyprotocols;Magneticresonanceimaging;Photogrammetry;Pathology乳腺癌新辅助化疗(neo—adjuvantchemotherapy,Ⅲ期乳腺
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