Case 38

Color flow Doppler echocardiograms

Right parasternal long-axis view - diastole

   

Right parasternal long-axis view - systole

   

Left apical four-chamber view - diastole

   

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Video Clips

Video clip of color flow Doppler from the right parasternal long-axis view

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Video clip of color flow Doppler from the left apical four chamber view

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Quiz

1. How would you characterize the flow from the left atrium to the right atrium in diastole?

Laminar

Red

Turbulent

Aliased

2. How would you characterize the color flow Doppler signal going across the defect in systole?

Laminar flow

Red plus

Turbulent

Aliased

3. The flow disturbance in the middle of the color signal (the blue signal) in systole tells you what?

Nothing

The flow velocity exceeds 75 cm/second in that area.

The blood flow is turbulent during this phase of the cardiac cycle.

Blood flow velocity has slowed down in this area.

Check Answer