Back to Basics 5500 Guide de l'utilisateur Page 188

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Vue de la page 187
Imaging Modalities
Color Imaging
7-72 Revision D.0
Adaptive Flow
Adaptive Flow provides the best color sensitivity at every depth, while keeping
the velocity scale constant. The following illustration shows Adaptive Flow side-
by-side images with the color box set to different depths:
View 1 - Color box at shallow depth
View 2 - Color box at deeper depth
Following are some Adaptive Flow guidelines:
As the color box moves to the top of the sector (shallow depth), the system
uses a higher color flow frequency (View 1).
When the color box moves to the bottom of the sector, the system uses a
lower color flow frequency (View 2).
The user may override the selected frequency by
•Moving the Focus rotary control to a new depth in the color box
•Disabling Adaptive Flow
3.5 MHz
+ 52
- 52
2.5 MHz
+ 52
- 52
Focus
Focus
Focus
Focus
Color box
Color box
View 1
View 2
Tip: The system
automatically
provides the optimal
color frequency,
focus and adjusts
the PRF.
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