... 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 ... CDDICOM & PACs CompatibleStandard Configuration 1) Main unit, 17”LCD monitor, 3 probe connectors, 2 USB ports2)3.5MHz Convex Array ...