BACKGROUND Subchorionic hematoma(SCH)is a common complication in early pregnancy characterized by the accumulation of blood between the uterine wall and the chorionic membrane.SCH can lead to adverse pregnancy outcome...BACKGROUND Subchorionic hematoma(SCH)is a common complication in early pregnancy characterized by the accumulation of blood between the uterine wall and the chorionic membrane.SCH can lead to adverse pregnancy outcomes such as miscarriage,preterm birth,and other complications.Early detection and accurate assessment of SCH are crucial for appropriate management and improved pregnancy outcomes.AIM To evaluate the diagnostic efficacy of virtual organ computer-assisted analysis(VOCAL)in measuring the volume ratio of SCH to gestational sac(GS)combined with serum progesterone on early pregnancy outcomes in patients with SCH.METHODS A total of 153 patients with SCH in their first-trimester pregnancies between 6 and 11 wk were enrolled.All patients were followed up until a gestational age of 20 wk.The parameters of transvaginal two-dimensional ultrasound,including the circumference of SCH(Cs),surface area of SCH(Ss),circumference of GS(Cg),and surface area of GS(Sg),and the parameters of VOCAL with transvaginal three-dimensional ultrasound,including the three-dimensional volume of SCH(3DVs)and GS(3DVg),were recorded.The size of the SCH and its ratio to the GS size(Cs/Cg,Ss/Sg,3DVs/3DVg)were recorded and compared.RESULTS Compared with those in the normal pregnancy group,the adverse pregnancy group had higher Cs/Cg,Ss/Sg,and 3DVs/3DVg ratios(P<0.05).When 3DVs/3DVg was 0.220,the highest predictive performance predicted adverse pregnancy outcomes,resulting in an AUC of 0.767,and the sensitivity,specificity were 70.2%,75%respectively.VOCAL measuring 3DVs/3DVg combined with serum progesterone gave a diagnostic AUC of 0.824 for early pregnancy outcome in SCH patients,with a high sensitivity of 82.1%and a specificity of 72.1%,which showed a significant difference between AUC.CONCLUSION VOCAL-measured 3DVs/3DVg effectively quantifies the severity of SCH,while combined serum progesterone better predicts adverse pregnancy outcomes.展开更多
目的探讨不明原因习惯性流产(URM)黄体中期子宫内膜三维超声能量多普勒血管成像(three-dimen-sional ultrasonography and power Doppler angiography,3-DU-PDA)的参数特点。方法选择南方医院生殖医学中心2007年8月至2009年4月就诊的88...目的探讨不明原因习惯性流产(URM)黄体中期子宫内膜三维超声能量多普勒血管成像(three-dimen-sional ultrasonography and power Doppler angiography,3-DU-PDA)的参数特点。方法选择南方医院生殖医学中心2007年8月至2009年4月就诊的88例URM患者为实验组,另以正常已生育妇女46例为对照组,比较两组临床特点、黄体中期子宫动脉频谱和子宫内膜3-DU-PDA参数。结果两组间年龄、体重指数、月经第3天血FSH值、尿LH峰日血LH值、排卵后第7天血孕酮值、子宫内膜厚度、子宫动脉搏动指数(PI)及阻力指数(RI)、内膜容积差异无统计学意义(P>0.05);URM组内膜下区域血管指数(VI)、内膜VI和血流指数(FI)、内膜及内膜下区域血管血流指数(VFI)均低于对照组,差异有统计学意义(P<0.05);两组间内膜下区域FI差异无统计学意义(P>0.05)。结论 URM患者围着床期子宫内膜血管化程度降低。展开更多
目的评价三维立体超声容积测量功能(VOCAL)对胎儿小脑蚓部发育的监测价值。方法前瞻性地对730例孕18～35w胎儿应用腹部三维立体超声容积探头,在胎头小脑蚓部的正中矢状切面,测量胎儿小脑蚓部面积,储存在仪器上,由专人应用其三维立体超...目的评价三维立体超声容积测量功能(VOCAL)对胎儿小脑蚓部发育的监测价值。方法前瞻性地对730例孕18～35w胎儿应用腹部三维立体超声容积探头,在胎头小脑蚓部的正中矢状切面,测量胎儿小脑蚓部面积,储存在仪器上,由专人应用其三维立体超声的容积测量功能(Virtual Organ Computer aided analysis,VOCAL)测量胎儿小脑蚓部体积,获得不同孕周正常值,并发现异常儿。结果胎儿小脑蚓部体积随孕周增加而增大呈正相关(r=0.86,P<0.05),发现异常儿10例,其中小脑蚓部缺如9例(6例系Dandy-Walker综合征,3例系全前脑并多发畸形),小脑蚓部发育不良1例。结论三维立体超声VOCAL能够克服二维超声扫查难以获取的胎头小脑蚓部正中矢状切面,有助于揭示正常胎儿小脑蚓部的发育规律,并发现异常的小脑蚓部,使宫内评价胎儿小脑蚓部发育成为可能。展开更多
目的对照评估三维超声VOCAL(virtual organ computer-aided analysis)技术与二维超声测量甲状腺体积的一致性和重复性。方法采用二维超声和三维超声测量50例18~68岁女性成人的甲状腺体积。二维超声测量甲状腺最大切面的3个径线(L、H、W)...目的对照评估三维超声VOCAL(virtual organ computer-aided analysis)技术与二维超声测量甲状腺体积的一致性和重复性。方法采用二维超声和三维超声测量50例18~68岁女性成人的甲状腺体积。二维超声测量甲状腺最大切面的3个径线(L、H、W),用经典的椭圆体公式V=0.523×L×H×W计算甲状腺体积;三维超声VOCAL技术先获取甲状腺三维数据,而后用VOCAL技术测量甲状腺体积;最终对比分析两种测量方法。结果三维超声VOCAL技术与传统二维超声测量甲状腺体积,操作者组内的变异系数分别为0.738%、1.59%,95%一致性界限分别为(-0.26cm^3,0.22cm^3)、(-0.32cm^3,0.46cm^3);组间相关系数分别为0.970^xx、0.942^xx,95%一致性界限分别为(-0.36cm^3,0.37cm^3)、(-0.75cm^3,0.64cm^3)。三维超声VOCAL技术测量甲状腺体积组内变异系数小、组间相关系数高、95%一致性界限宽度窄,说明三维超声VOCAL技术测量甲状腺体积的重复性优于传统二维超声。结论三维超声VOCAL技术测量甲状腺体积的重复性高,优于传统二维超声,其作为一种安全、简单、易行、精确的测量方法,为临床测量不规则脏器体积提供可靠、有效的新方法。展开更多
文摘BACKGROUND Subchorionic hematoma(SCH)is a common complication in early pregnancy characterized by the accumulation of blood between the uterine wall and the chorionic membrane.SCH can lead to adverse pregnancy outcomes such as miscarriage,preterm birth,and other complications.Early detection and accurate assessment of SCH are crucial for appropriate management and improved pregnancy outcomes.AIM To evaluate the diagnostic efficacy of virtual organ computer-assisted analysis(VOCAL)in measuring the volume ratio of SCH to gestational sac(GS)combined with serum progesterone on early pregnancy outcomes in patients with SCH.METHODS A total of 153 patients with SCH in their first-trimester pregnancies between 6 and 11 wk were enrolled.All patients were followed up until a gestational age of 20 wk.The parameters of transvaginal two-dimensional ultrasound,including the circumference of SCH(Cs),surface area of SCH(Ss),circumference of GS(Cg),and surface area of GS(Sg),and the parameters of VOCAL with transvaginal three-dimensional ultrasound,including the three-dimensional volume of SCH(3DVs)and GS(3DVg),were recorded.The size of the SCH and its ratio to the GS size(Cs/Cg,Ss/Sg,3DVs/3DVg)were recorded and compared.RESULTS Compared with those in the normal pregnancy group,the adverse pregnancy group had higher Cs/Cg,Ss/Sg,and 3DVs/3DVg ratios(P<0.05).When 3DVs/3DVg was 0.220,the highest predictive performance predicted adverse pregnancy outcomes,resulting in an AUC of 0.767,and the sensitivity,specificity were 70.2%,75%respectively.VOCAL measuring 3DVs/3DVg combined with serum progesterone gave a diagnostic AUC of 0.824 for early pregnancy outcome in SCH patients,with a high sensitivity of 82.1%and a specificity of 72.1%,which showed a significant difference between AUC.CONCLUSION VOCAL-measured 3DVs/3DVg effectively quantifies the severity of SCH,while combined serum progesterone better predicts adverse pregnancy outcomes.
文摘目的探讨不明原因习惯性流产(URM)黄体中期子宫内膜三维超声能量多普勒血管成像(three-dimen-sional ultrasonography and power Doppler angiography,3-DU-PDA)的参数特点。方法选择南方医院生殖医学中心2007年8月至2009年4月就诊的88例URM患者为实验组,另以正常已生育妇女46例为对照组,比较两组临床特点、黄体中期子宫动脉频谱和子宫内膜3-DU-PDA参数。结果两组间年龄、体重指数、月经第3天血FSH值、尿LH峰日血LH值、排卵后第7天血孕酮值、子宫内膜厚度、子宫动脉搏动指数(PI)及阻力指数(RI)、内膜容积差异无统计学意义(P>0.05);URM组内膜下区域血管指数(VI)、内膜VI和血流指数(FI)、内膜及内膜下区域血管血流指数(VFI)均低于对照组,差异有统计学意义(P<0.05);两组间内膜下区域FI差异无统计学意义(P>0.05)。结论 URM患者围着床期子宫内膜血管化程度降低。
文摘目的评价三维立体超声容积测量功能(VOCAL)对胎儿小脑蚓部发育的监测价值。方法前瞻性地对730例孕18～35w胎儿应用腹部三维立体超声容积探头,在胎头小脑蚓部的正中矢状切面,测量胎儿小脑蚓部面积,储存在仪器上,由专人应用其三维立体超声的容积测量功能(Virtual Organ Computer aided analysis,VOCAL)测量胎儿小脑蚓部体积,获得不同孕周正常值,并发现异常儿。结果胎儿小脑蚓部体积随孕周增加而增大呈正相关(r=0.86,P<0.05),发现异常儿10例,其中小脑蚓部缺如9例(6例系Dandy-Walker综合征,3例系全前脑并多发畸形),小脑蚓部发育不良1例。结论三维立体超声VOCAL能够克服二维超声扫查难以获取的胎头小脑蚓部正中矢状切面,有助于揭示正常胎儿小脑蚓部的发育规律,并发现异常的小脑蚓部,使宫内评价胎儿小脑蚓部发育成为可能。
文摘目的对照评估三维超声VOCAL(virtual organ computer-aided analysis)技术与二维超声测量甲状腺体积的一致性和重复性。方法采用二维超声和三维超声测量50例18~68岁女性成人的甲状腺体积。二维超声测量甲状腺最大切面的3个径线(L、H、W),用经典的椭圆体公式V=0.523×L×H×W计算甲状腺体积;三维超声VOCAL技术先获取甲状腺三维数据,而后用VOCAL技术测量甲状腺体积;最终对比分析两种测量方法。结果三维超声VOCAL技术与传统二维超声测量甲状腺体积,操作者组内的变异系数分别为0.738%、1.59%,95%一致性界限分别为(-0.26cm^3,0.22cm^3)、(-0.32cm^3,0.46cm^3);组间相关系数分别为0.970^xx、0.942^xx,95%一致性界限分别为(-0.36cm^3,0.37cm^3)、(-0.75cm^3,0.64cm^3)。三维超声VOCAL技术测量甲状腺体积组内变异系数小、组间相关系数高、95%一致性界限宽度窄,说明三维超声VOCAL技术测量甲状腺体积的重复性优于传统二维超声。结论三维超声VOCAL技术测量甲状腺体积的重复性高,优于传统二维超声,其作为一种安全、简单、易行、精确的测量方法,为临床测量不规则脏器体积提供可靠、有效的新方法。
