早期减速一般认为是无害的。如果连续出现并逐渐加重或频发生于早产期,则应考虑脐带受压,胎儿缺氧。
说明了左室舒张功能的改善。舒张早期减速度有较大增加;
Early diastolic drag acceleration increased, it is one index of left ventricular diastolic function, its elevation suggested…
高血压病各组与健康对照组比较,舒张早期与舒张晚期峰值流速的比值(E/A),以及舒张早期流速的减速度(EDC)差异有显著性意义;
The peak flow rate ratio(E/A)in early and late of diastolic phase and the flow rate deceleration in early diastolic phase(EDC)also showed significant differences.
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