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一、估计心功能的指标1.收缩期大血管内脉冲多普勒血流速度波指标:①收缩期射血波峰速(PV);②射血加速时间(AT):由射血波开始至峰速的时间;③ET:射血时间;④平均加速时间 AC=PV/AT。(见图1)。
First, the assessment of cardiac function index 1. Systolic blood vessels within the pulse Doppler flow velocity wave index: ① systolic ejection wave peak velocity (PV); ② ejection acceleration time (AT): from the beginning of the ejection wave to Peak speed time; ET: ejection time; average acceleration time AC = PV / AT. (see picture 1).