资源描述:
《b超检查分析孕囊大小与月经周期的关系》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、B超检查分析孕囊大小与月经周期的关系【摘要】目的:探讨孕囊大小与月经周期的关系。方法:108例月经周期较规律的妇女根据月经周期分为A组(20~27d)、B组(28~30d)、C组(31~40d)3组,采用B超检测孕囊直径,以停经天数与月经周期之差作为自变量X,孕囊直径作为应变量Y,作回归方程,分析3组孕囊大小与停经天数及月经周期的关系。结果:A、B、C3组直线回归方程分别为:=4.4378+1.0394X、=4.9118+1.0151X、=4.1940+1.0531X,平均为:=4.5160+1
2、.0358X,各组及平均孕囊大小与停经天数及月经周期密切相关(r分别为0.8979、0.9612、0.9589、0.9492,P<0.01),孕囊平均直径(mm)=(停经天数-月经周期)+5。结论:在一个规律的月经周期内,月经周期长者其受孕时间相应推后,月经周期短者其受孕时间相应提前。【关键词】B超 孕囊 月经周期Checkandanalysetherelationshipbetweenthegestationalsactimeofpregnancyandthemenstrualcycleusi
3、ngBModeUltrasongraphyLUOMei,LIUSiyi,PUTingDepartmentofUltrasound,FuKangHospital,Xinjiang831500,ChinaAbstract:Objective:Toinvestigatetherelationshipbetweenthegestationalsacandthemenstrualcycleusingultrasonography.Methods:Onehundredandeightcasesofreg
4、ularmenstrualcyclewomenaredividedintoA,B,Cthreegroups(Afrom20to27days,Bfrom28to30days,Cfrom31to40days)accordingtothemenstrualcycle.BModeUltrasonographywasusedtomeasurethediameterofthegestationalsac,thedaysofstoppingmenstruationminusingmenstrualcyclea
5、reconsideredtobeXchangingautomaticaly,thediameterofthegestationalsacasYchangingbasedonX,withXandY,maketropicequations.Results:Afteranalysingtherelationshipbetweenthegestationalsactimeofpregnancy,thedaysofstoppingmenstruationandthemenstrualcycle,thetr
6、opicequationsofA,BandCgroupsareseparately=4.4378+1.0394X;=4.9118+1.0151X;=4.1940+1.0531X,Itsaveragediameteris=4.5160+1.0358X.Eachaverageiscloselyrelatedtothedaysofstoppingmenstruationandmenstrualcycle(r=0.8979,0.9612,0.9589,0.9492,P<0.01).Theaveraged
7、iameterofthegestationalsacequalsthedaysofstoppingmenstruationminusmenstrualcycleplus5.Conclusion:Withinaregularmenstrualcycle,ifitislong,itstimeofpregnancyisputoffandifitisshort,itstimeofpregnancyisaheadoftime.Keywords:BmodeUltrasonography;gestation
8、alsac;menstrualcycle正常育龄妇女的月经周期范围在20~40d[1],而月经周期长短因人而异,一般为28~30d[2],且每个女性自身的月经周期相对稳定。我院2004年10月~2006年2月在接受超声检查的早孕妇女中,筛选出108例月经周期较规律者,探讨了孕囊大小与月经周期的关系,并推导出一个与月经周期相关的孕囊计测公式。1研究对象与方法1.1研究对象本组108例早孕妇女,年龄22~35岁,平均29.6岁,初潮年龄12~18岁,月经周期20~40d,月经期为3~7d。108例根