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- Mitral inflow velocity, left atrium contraction inflow velocity in early diastole and their ratio were detected by Doppler flow imaging.Difference of the index of the two groups was compared. 并用二尖瓣血流多普勒法检测舒张期早期血流速度峰值、左心房收缩期血流速度峰值及二者比值，比较两组间所测指标的差异。
- left atrial contraction 左心房收缩
- Use cineloop, to obtain the best sagittal view of the left atrium. 使用cineloop得到最好的左心房的纵剖面图像。
- Neither shunt from left atrium to right atrium nor cardiac tamponade was found. 无心包填塞，无继发性房间隔缺损及左向右分流者。
- Transmitral flow velocities during early diastole(E) and atrial contraction(A) were also measured by Doppler echocardiography and E/A ratio, E/Ve ratio were calculated. 应用彩色多普勒超声心动图测量二尖瓣口舒张期血流快速充盈速度E峰,左房收缩充盈速度A峰,计算E/A值和E与平均Ve的比值(E/Ve)。
- The blood flow velocity of mitral during early diastole（E）and atrial contraction（A）were also measured by pulsed Doppler echocardiography and E/A ration was calculated. 结果正常组舒张早期峰值速度（E）>左房收缩期峰值速度（A），E/A>1;
- Left ventricular failure results in distention of the left atrium, engorgement of the pulmonary veins. 左心室衰竭导致左心房扩张，肺静脉充盈。
- From the left atrium the blood passes through the bicuspid valve into the left ventricle. 来自左心房的血液通过二尖瓣进入右心室。
- Here is a thromboembolus that originated from mural thrombus in the left atrium. 此栓子源于左心房的附壁血栓。
- Objective To investigate the clinical significance of the alteration of left atrium diameter in hypertension patients. 目的探讨原发性高血压病左心房内径变化及临床意义。
- Methods Thirty healthy subjects were enrolled in the study. Longitudinal SR of LV walls and RV wall during systole,early diastole and atrium contraction(SRs,SRe and SRa) and largest strain(Smax) were measured. 方法测量30例正常中老年人各室壁、各节段收缩期、舒张早期和房缩期纵向应变率(SRs、SRe、SRa)及最大应变(Smax)。
- The left atrium has been opened to reveal the most common primary cardiac neoplasm--an atrial myxoma. 从剖开的左心房可见最为普遍的原发性心脏肿瘤-心房粘液瘤。
- METHODS: The measurement parameters included: peak velocities at rapid filling (VE) and atrial contraction (VA), the ratio E/A, deceleration rate of early diastolic rapid inflow (EDC) and E-F slope of mitral valve forelobe curve (EFV). 方法：以舒张早期快速充盈血流速度（VE）、舒张晚期心房收缩血流速度（VA）、二者比值（E/A）、舒张早期快速充盈减速度（EDC）及二尖瓣前叶EF斜率（EFV）为测量参数。
- Methods 85 patients suspect coronary heart disease, with echocardiography, the peak flow velocities during early diastole (E), atrial contraction (A), E/A ratio were recorded and calculated. 方法85例临床疑诊冠心病超声检查左心室二尖瓣口舒张早、晚期血流充盈速度E、A两峰峰值,计算E/A比值,其结果分为舒张功能正常和降低两组。
- The lateral view of angiocardiography showed two adjacent chambers in the region of left atrium. 三房心的心血管造影表现为在侧位上相当于左房区域，有两个相邻的腔。
- TDI paraments included peak early diastolic annular velocity (E),peak diastolic annular velocity with atrial contraction(A),and isovolumic relaxation time (IR)intervals,calculating the ratio of E/A. 然后应用组织多普勒技术测定E波（舒张早期三尖瓣环运动峰值速度）、A波（舒张晚期三尖瓣环运动峰值速度）和IR（等容舒张时间），并计算E/A比值。
- Objective: To study the relations of left atrium size with atrium vibration of the patients with hypertension. 目的:研究高血压病左心房大小与心房纤颤的关系。
- An atrial sound is not heard in this condition because mitral valve narrowing prevents sudden emptying of the left atrium. 心房音此时不能听到，因为二尖瓣狭窄阻止左心房突然排空。
- Objective To explore the relation between left atrial volume index(LAVI) and prognosis of acute myocardiac infarction(AMI). 目的探讨左心房容积指数(LAVI)与急性心肌梗死(AMI)预后之间的关系。
- An atrial sound is not heard in this condition because mitral value narrowing prevents sudden emptying of the left atrium. 心房音此时不能听到,因为二尖瓣狭窄阻止左心房突然排空。
