二尖瓣口多普勒频谱 PHILIPS ZENG ZHAORUI M16Y 10125/20061120:28TI1s0.5M10.7 UM060336W S5-1/Card Adult S0Hz NanFang Hospital 3 PW 125 /4.0mm 15 -80 -40 cm/s 40 -80 3.2sec **bpm二尖瓣口多普勒频谱