心尖

结果心房电极行RVOT起搏，起搏阈值、R波振幅和电极阻抗与心尖部起搏比较无差异（P>0.05）；

Results Stimulation threshold , pulse width and the impedance were no significant difference between RVOT pacing and right ventricular apex pacing .

心脏破裂多发生在AMI后3d内，第1天占33.3%，多见于前壁、心尖部及下壁。

Heart rupture occurred mostly within 3 days , 33.3 % for 18 patients with heart rupture in 1st day after AMI . The sites of AMI were more anterior wall , cardiac apex and inferior wall .

在心尖四腔心切面，应用彩色M型多普勒超声心动图测量左心室舒张早期血流传播速度（VP）。

From the apical four chamber view , left ventricular early diastolic flow propagation velocity ( Vp ) was measured by color M-mode echocardiography .

2-D超声心动图观察心尖部短轴收缩期钟向旋转的临床意义

The Clinical Significance of 2-D Echocardiography on Left Ventricle Apical Short Axis Rotatory Moving in Systole

左室心尖部的力学分析及其异常运动现象的2-D超声心动图观察

The Mechanics Analysis of Abnormal Wall Motion on the Left Ventricle Apical Area with 2-D Echocardiography

实验结束后测定左心室心肌组织过氧化物歧化酶（SOD）活性并取心尖组织电镜观察组织学改变。

At the end of reperfusion , SOD activity of left ventricular tissue was measured and myocardial histology was evaluated .

心尖位置导联心电图QRS电压对诊断左室肥大的探讨

The Study about Electrocardiographic QRS Voltage of Cardiac Apex to Identify Left Ventricular Hypertrophy

SI模式下心尖长轴观定性观察健康人、冠心病和扩张性心肌病患者左室各节段的彩色分布；

Color bands on left ventricular walls of healthy subjects , patients with CAD and dilated cardiomyopathy ( DCM ) in apical view were observed in SI mode .

材料和方法：147例心电图异常患者，行UCG，冠状动脉及左心室造影，21患者进一步行MRI检查确诊为心尖肥厚型心肌病。

Materials and Methods : 147 patients with abnormal ECG were diagnosed AHCM by UCG , ventriculography , coronary angiography or MRI .

其中，重度狭窄组心尖部、室间隔前部及左室侧壁心肌密度与正常组间存在统计学差异（P0.05）。

Among them , the severe narrow group XinJian department , ventricular septal front and left ventricular wall myocardial density and normal group myocardial density differences ( P0.05 ) .

在心尖四腔切面应用双平面改良Simpson方法测定左室容量并计算左室射血分数（EF）。

LV ejection fraction ( EF ) were calculated by the machine using biplane meliorative Simpson method in the apical four-chamber section .

方法：在心尖四腔心切面，应用CK技术对20例正常人和39例慢性肺心病患者的右室各节段收缩期内膜运动幅度进行测量。

Methods : We measured the systolic endocardial motion of right ventricles in 39 chronic cor pulmonal patients and 20 normal cases in the apical four chamber view .

2-DE心尖两切面对心肌梗塞患者左室容积和射血分数定量测定的重复性观察

The Reproducibility of Apical Biplane 2-DE in Quantitative Determining Left Ventricular Volumes and Ejection Fraction in Patients with Myocardial Infarction

肥厚性心肌病心尖肥厚亚型的临床诊断（附28例临床报告）心尖位置导联心电图QRS电压对诊断左室肥大的探讨

Diagnosis of apical hypertrophic cardiomyopathy : A clinical report with 28 cases The Study about Electrocardiographic QRS Voltage of Cardiac Apex to Identify Left Ventricular Hypertrophy

目的了解老年心尖肥厚型心肌病（APH）患者冠脉造影及心室造影特征。

Objective To investigate the characteristics of coronary angiography in elderly patients with apical hypertrophic cardiomyopathy .

目的探讨心电图对心尖肥厚型心肌病（AHCM）的诊断作用。

Objective To explore the significance of electrocardiogram in diagnose of apical hypertrophic cardiomyopathy ( AHCM ) .

结果：冠脉痉挛梗塞组心尖部及前壁中段、心尖段的收缩波、舒张早期波峰值速度及时间速度积分明显低于对照组（P0.01）。

Results : In patients with myocardial infarction , systolic early diastolic peak velocity and time velocity integrals of middle , apical segments and apex were significantly lower than those in normal subjects ( P 0.01 ) .

结果对照组中间段TR短于心尖段（P<0.05）及基底段TR（P>0.05）。

Results In control group , mean resting TR was shorter in the mid segments compared to apical ( P < 0.05 ) and basal segments ( P > 0.05 ) .

每组取心尖部及其邻近的心肌组织制成石蜡切片，进行HE、链霉系合素生物素过氧化物酶（SAB）染色。

The apex of myocardia and the adjacent myocardia were taken for paraffin sections , followed by HE and SABC staining .

CHF组左室心肌各节段Vs均低于正常对照组，其中降低幅度最大的是基底段达57%，中间段次之为50%，心尖段最少是43%。

Velocity of LV segment in CHF group was slower in control group , reduced by 57 % in basal segment , 50 % in middle segment , and 43 % in apical segment , respectively .

结果：右室心尖部起搏时CO较右心耳起搏降低19%（P0.01），右室流出道起搏时CO较右心耳起搏降低9.4%（P0.05），而较心尖部起搏提高12%（P0.05）。

Results : Compared with right atrium pacing , CO decreased 19 % ( P0.01 ) in right ventricular septal pacing , However , CO increased 12 % ( P0.05 ) in right ventricular septal pacing compared with right ventricular apex pacing .

方法应用二维及多普勒超声心动图，经右锁骨上窝及心尖五腔切面观对21例SVCS患者及20例健康志愿者行上腔静脉及相关部位的超声检测。

Methods Twenty-one patients with SVCS and 20 healthy volunteers were studied by echocardiography from the right supraclavicular view and the apical 5-chamber plane .

于心尖四腔观，应用彩色M型多普勒技术测量左室舒张早期血流播散速度（FPV）；

Flow propagation velocity in left ventricle in diastole rate ( FPV ) was measured with CMM at a four-chamber view .

目的探讨心尖部室间隔缺损（VSD）外科治疗方法的选择，以提高治疗水平。

Objective To discuss the methods and results of the surgical treatment of apical muscular ventricular septal defects ( VSD ), in order to improve the surgical outcome of this disease .

结论心尖四腔观单平面面积-长度法测量RVEF可作为估测右室收缩功能的简单可靠的方法。

Conclusions The measurement of RVEF applies a simple and reliable method in evaluating systolic function of right ventricle .

斑点追踪显像（speckletrackingimaging，STI）技术能够追踪二尖瓣环的运动，测量其相对于心尖部的全心动周期的位移和速度，从而评价左心室整体收缩及舒张功能。

Speckle tracking imaging technology can follow the movement of mitral annulus and measure displacement and speed in all the cardiac cycle of mitral annulus relative to apex , thereby can be used to evaluate left ventricular overall systolic and diastolic function .

最小主应变E3在右心室中壁的分布沿着长轴方向向着心尖增大，E3的方向与纤维旋向基本一致。

The minimum principle strain E3 is biggest at apex and its direction on the surface of middle wall of left ventricle is in the approximate direction of fiber orientation .

结果正常组s、STVI从基底段到心尖段逐渐降低（P<0.05）；

Results s and s TVI were gradually decreased from base to apex in the same wall in control group ( P < 0.05 ) .

在心尖四腔心切面，应用脉冲多普勒超声获取舒张期二尖瓣血流频谱，测量舒张早期峰值流速（E）、心房收缩期峰值流速（A）、E／A和E波减速时间（DT）。

From the apical four chamber view , the image of mitral inflow was obtained and early diastolic peak flow velocity ( E ), late diastolic peak flow velocity ( A ), the ratio of E / A and deceleration time of E wave were measured .

最小主应变E3在右心室自由壁心内膜的分布在心尖最大，其次是中部，方向基本上与纤维旋向一致。

The minimum principle strain E3 is biggest at the apex , then at the middle of free wall , and its direction is in the approximate direction of the epicardial muscle fibers .