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Figure 3 Examples of selected two-dimensional color Doppler images in the animal model. Images for measurement of forward stroke volume with flow going away from the transducer in an oblique outflow view corresponding to the horizontal plane (top left) and in a long axis view corresponding to the paired orthogonal plane (bottom left). Images for measurement of regurgitant volume with flow coming towards the transducer in the oblique outflow view (top right) and in the long axis view (bottom right) at the same diastolic phase. Note that the distance of the velocity profile for the RV forward flow in the oblique outflow view is larger than it is in the long axis view. Although the diameter of velocity profile for the regurgitant flow is similar, the shape of the velocity profile is different between two planes. AO = aorta; PA = pulmonary artery; RVOT = right ventricular outflow tract.
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