【摘 要】
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Objective: This study was designed to evaluate the left ventricular systolic synchronization in patients implanted with dual-chamber (DDD) mode cardiac pacemakers by using real-time three-dimensional
【机 构】
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Department of Ultrasound in Medicine, Henan Provincial Hospital, Zhengzhou
【出 处】
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中国超声医学工程学会成立30周年暨第十二届全国超声医学学术大会
论文部分内容阅读
Objective: This study was designed to evaluate the left ventricular systolic synchronization in patients implanted with dual-chamber (DDD) mode cardiac pacemakers by using real-time three-dimensional echocardiography (RT3DE).Methods: Twenty patients implanted with DDD mode cardiac pacemakers after 12 months and twenty healthy subjects underwent RT3DE.It provided left ventricular end-diastolic volume (LEDV), left ventricular end-systolic volume (LESV),stroke volume (SV), left ventricular ejection fraction (LVEF) , the mean value of the time to the point with minimal systolic volume of left ventricular 16 segments (Tmean) and the standard deviation of Tmean (T-SD), the maximal difference of the time to point of minimal systolic volume of left ventricular 16 segments(Tmax) and left ventricular 16 segmental time-volume curves.
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