Case 17 — Color Flow Doppler

2D Echocardiogram (Left-Sided View)

Left-sided echocardiographic view showing the proximal descending aorta (AO) and main pulmonary artery (PA) with a structure between them.
Left-sided view. Proximal descending aorta (AO) and main pulmonary artery (PA) with a structure with an opening between them.

Color Flow Doppler (Same View)

Color flow Doppler in systole showing continuous flow from the aorta through the ductus into the pulmonary artery with a turbulent jet extending back to the pulmonic valve.
Color flow Doppler (systole). Continuous flow from aorta through the ductus into the PA, with turbulent jet extending to the pulmonic valve.

Color flow Doppler from a different dog with the same abnormality

Same video at half speed

↑