... A/B ratio, angle, ellipse, volume2) Basic M-mode: velocity, heart rate, distance, slope, A/B ratio, time3) Basic Doppler: peak velocity ... /frequency, time, mean velocity, heart rate, RI, PI, S/D ratio, flow volume, area4) Basic ... RVET for right ventricle, cardiac output, cardiac index, FS, EF, heart rate; reports cover B-mode, M-mode and Doppler mode7) Basic ...