研究背景:射血分数保留性心力衰竭(Heart Failure with Preserved Ejection Fraction,HFpEF)因不断飙升的患病率和居高不下的死亡......

目的:应用实时三维超声心动图(RT-3DE)对射血分数正常的心力衰竭患者(Heart Failure with reduced normal fraction,HFNEF)的舒张......