施加三路信号于动物体，采集并处理右心房内的定位信号数据，对激励源性能进行评价和分析。
The excitation source's performance is analyzed by acquisition and processing the localization signal in animal right atrium.
目的：探讨CT增强扫描对诊断左心房内血栓形成的价值。
Objective: To explore the value of ct enhanced scanning in diagnosing thrombosis in the left cardiac atrium.
结论：心脏起搏抑制房颤发生的机制可能与快频率起搏加速心房内传导、抑制了房性期前收缩、消除了窦性心动过缓和心脏长短间歇有关。
Conclusion: atrial overdrive can prevent AF, which may results from accelerating interatrial conduction, inhibiting atrial premature beat, eliminating sinus bradycardia and long short interval.
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