目的：对比右室心尖部起搏与右室间隔部起搏对心功能的影响。
Objective:To compare the cardiac function impact by right ventricular septum pacing and right ventricular apex pacing.
观察研究表明传统的右室心尖部起搏对左室功能可能有不利影响。
Observational studies suggest that conventional right ventricular apical pacing may have a deleterious effect on left ventricular function.
目的评估右室间隔部起搏和右室心尖部起搏对起搏参数和双心室电同步性的影响。
AIM To evaluate the influence of pacing in right ventricular septum (RVS) and right ventricular apex (RVA) on pacing parameter and biventricular electrical synchrony.
右室间隔部起搏的血流动力学参数优于右室心尖部，从而可以避免或减轻传统右室心尖部起搏造成的心脏收缩、舒张功能恶化。
The hemodynamic parameters of RVS pacing were significantly better than that of RVA pacing, so can avoid or relieve deterioration of cardiac function by traditional RVA pacing.
目的设计用高频超声线阵探头（HFU）观察心尖部室间沟部位心外膜冠状动脉（ECA）结构和血流。
Objective:This study designed to image the epicardial coronary artery (ECA) and flow in apical interventricular furrow using transthoracic high frequency linear ultrasound probe (HFU).
MRI可直观的显示出梗塞部位室壁变薄，信号减低，对心尖部梗塞的诊断优于ecg。
Thin ventricular wall and low signal of myocardial infarction were shown in MRI. MRI in diagnosis of myocardial infarction located in cardiac apex is better than ECG.
MRI可直观的显示出梗塞部位室壁变薄，信号减低，对心尖部梗塞的诊断优于ecg。
Thin ventricular wall and low signal of myocardial infarction were shown in MRI. MRI in diagnosis of myocardial infarction located in cardiac apex is better than ECG.
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