MF and sv 140 120 目100 80 目上60 可 40 20 20 60 80 100120140 Stroke volume(Sv)(cm3)MF and SV 2 0 4 0 6 0 8 0 100 120 140 2 0 4 0 6 0 8 0 100 120 140 Stroke volume (SV) (cm3) Transmitral flow (MF) (cm3)