欢迎来到天天文库
浏览记录
ID:6104007
大小:815.00 KB
页数:4页
时间:2018-01-02
《乳腺小肿块灰阶和彩色多普勒超声特征logistic回归分析》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、中国超声医学杂志2011年3月第27卷第3期ChineseJUltrasoundMedVol27No3March201l一209一乳腺小肿块灰阶和彩色多普勒超声特征的logistic回归分析思远专业医院随访系统,提高患者满意度,临床科研好帮手顾秀娟散志华孙心平李建国网址http://www.hcrm98.com/,QQ群54524269摘要目的评价并筛选鉴别乳腺小肿块(≤2cm)的灰阶和彩色多普勒超声特征指标。方法术前观察71个乳腺小肿块的灰阶和彩色多普勒超声及三维能量多普勒血流特征,将单因素分析得出
2、的与乳腺恶性肿块有关的变量进人回归统计,利用logistic逐步回归分析筛选出鉴别乳腺良恶性小肿块有意义的指标并建立诊断恶性可能性公式。结果乳腺良恶性肿块在纵横比、微小钙化、高回声晕、毛刺征、腋窝淋巴结肿大、阻力指数、血管指数、穿人型血流、中心型血流、环绕型血流等方面存在显著性差异(P<0.05),经过logistic逐步回归,得出以下方程:恶性可能性一1/(1+e~),其z=一4.248+2.276×血管指数+3.736×穿人型血流+3.266×纵横比+3.068×腋窝淋巴结肿大。当乳腺小肿块纵横比
3、≥0.77,出现穿人型血流,血管指数≥1.65条/cm。,伴腋窝淋巴结肿大时恶性危险可能性0.99。结论以超声特征诊断乳腺恶性/l,/~0e块的logistic回归模型有助于鉴别乳腺良恶性病变。关键词超声检查乳腺小肿块logistic模型LogisticRegressionAnalysisoftheFeaturesofSmallBreastMassesonGrayScaleandColorDopperUltrasoundGuXiujuan,SanZhihua,SunXinping,etalDepart
4、mentofUltrasound,Chuiyangliuhospital,Beijing100022ChinaAbstract:ObjectiveToevaluateandscreenoutthespecificcharactersofsmallbreastmassesongrayscaleandcolorDoppleru1trasonography.MethodsSeventyonesmallbreastmasseswerestudiedwithgrayscalefirstly,thenwithco
5、lorDoppleru1trasonographyandthree—dimensionalcolorpowerangiographybeforesurgery,andwereanalyzedviamultivariatelogisticregression.ResultsThesignificantcharacterstodifferentiatemalignantfrombenignwereheight/widthratio(H/W),microcalcification,hyperechoicha
6、lo,spiculemargin,axillarylymphnodes,resistanceindex,vascularindex(VI)。penetratingvessel,centralvessel,peripherlvasculartype(P~0.05),afterlogisticregressionanal—ysis,afomulawereworkedout:Probabilityofmalignancy—l/(1+e一),ofwhichz一一4.248+2.276×VI+3.736×pen
7、etratingvesse1+3.266×H/W+3.068×axillarylymphnodes.IfsmallbreastmasseswithH/w≥0.77,penetratingvessel,VI≥1.65strip/cm3andaxillarylymphnodes,theprobabilityofmalignancywas0.99.ConclusionsTheLogisticmodelishelpfultodifferentiatebenignfrommalignantbreastlesio
8、ns.Keywords:Ultrasonography,Smallbreastmasses,Logisticmedels.目前,乳腺癌发病率呈逐年上升趋势,已跃居女术病理证实的71例乳腺小肿块(≤2cm),均为单性恶性肿瘤首位。提高乳腺癌患者生存质量的关键是发,其中恶性肿块39个,良性肿块32个。患者年龄早发现、早诊断、早治疗。本研究通过对乳腺良恶性22~72岁,平均(47.74-11.2)岁。2.仪器与设备GElogiq9型彩色多普勒超声小肿块的灰阶和
此文档下载收益归作者所有