Figure 110

Normal left ventricular diastolic flow by color Doppler flow imaging, apical four-chamber view. Left ventricular inflow toward the transducer is coded in red. This flow stream passes along the distal lateral wall, rounds the apex, and moves toward the aortic valve. Because of its direction, the resulting vortex (a normal phenomenon) is coded blue. LA, left atrium; RA, right atrium; RV, right ventricle; A4C, apical four-chamber.