CAJ | 학술논문

目的应用速度向量成像(VVI)探讨围绝经期妇女颈总动脉弹性的改变.方法将68例围绝经期妇女分为雌二醇(E2)下降组(42例)和正常对照组(26例),应用VVI技术获取颈总动脉短轴切面的6个壁(前壁、前内侧壁、后内侧壁、后壁、后外侧壁、前外侧壁)的收缩期径向速度的平均达峰时间(VTTP)、最大平均速度(Vmax)、最大平均应变(Smax)、最大平均应变率(SRmax)及面积改变率(△S),并进行组间比较.结果与对照组相比,E2下降组VTTP明显缩短(P＜0.01),ΔS、Smax明显增大(P＜0.01),Vmax、SRmax两组间差异无统计学意义(P＞0.05).结论 VVI可以简便、敏感地反映围绝经期妇女颈总动脉的弹性改变.
목적 응용속도향량성상(VVI)탐토위절경기부녀경총동맥탄성적개변.방법 장68례위절경기부녀분위자이순(E2)하강조(42례)화정상대조조(26례),응용VVI기술획취경총동맥단축절면적6개벽(전벽、전내측벽、후내측벽、후벽、후외측벽、전외측벽)적수축기경향속도적평균체봉시간(VTTP)、최대평균속도(Vmax)、최대평균응변(Smax)、최대평균응변솔(SRmax)급면적개변솔(△S),병진행조간비교.결과 여대조조상비,E2하강조VTTP명현축단(P＜0.01),ΔS、Smax명현증대(P＜0.01),Vmax、SRmax량조간차이무통계학의의(P＞0.05).결론 VVI가이간편、민감지반영위절경기부녀경총동맥적탄성개변.
Objective To discuss the change of elasticity of common carotid artery(CCA) with velocity vector imaging(VVI) technique in perimenopausal women.Methods 68 women in perimenopausal period were divided into two groups:estrogen drop group(42 women) and normal control group(26 women) according to the level of estrogen in serum.All women were examined with color Doppler ultrasound,and the maximum time to peak of the velocity(VTTP),maximum velocity(Vmax),maximum radial strain (Smax),maximum strain rate(SRmax) and the change rate of area(ΔS) were measured and assessed in common carotid artery(CCA) including 6 segments:anterior wall,posterior wall,anterolateral wall,anterior internal wall,posterolateral wall and posterointernal wall.Results There were signicantly differences of the elastic parameters between two groups inculding VTTP,Smax and ΔS (P ＜0.01),and there were no statistical difference on the Vmax and SRmax in both two groups(P ＞0.05).Conclusions The change of elasticity in CCA can be observed susceptibly with VVI in perimenopausal women,and VVI is an effective and sensitive technique for detecting CCA elastic characteristics.