A power map shows the range of colors corresponding to the power of the Doppler signal in a power mode display.

Color saturation is a characteristic used for example to describe the vividness of a color, or the gradation of hue from unsaturated (white) to fully saturated (100% of the given color).

See also Directional Indicators, and Power Map.

In power mode the amplitude (power) of color Doppler signals is displayed, regardless of the velocity. Power does not have negative values and is independent of sampling frequency. An aliasing artifact does not occur in power mode images. Caused by plotting the quantity enhanced by echo contrast agents in a power map, power mode is often used in contrast Doppler ultrasound examinations.
Also known as energy mode.

From Philips Medical Systems;
Introduced in June 2005, 'one of the less expensive and more dedicated' ultrasound systems.

From GE Healthcare.;
'The incredible Vivid i system establishes a completely new level of cardiovascular performance that gives clinicians the freedom to get diagnostic results outside of the echo lab.'