the biggest blood flow area of left ventricle in atrial filling period and fast filling period were measured. The sensitivity and acuracy of color flowing imaging was supperior to that of pulsed doppler in measuring RFFa, AFFa and AFA/EFA.

• 两种方法比较表明，彩色多普勒法测得的指标RFFa，AFFa，及心房收缩期与快速充盈期左室最大血流柱面积比之（AFA/EFA）的敏感性和准确性均优于脉冲法。