The ratio of early to late atrial diastolic peak flow velocity(VE/VA),the ratio of early to late atrial time-velocity integral (ETVI/ATVI) and isovolumic relaxation time(IVRT) were observed.

 
  • 檢測指標包括:舒張早晚期最大充盈速率比值(VE/VA)及其時(shí)間流速積分比值(ETVI/ATVI)和等容舒張時(shí)間(IVRT)。
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