Terason t3000, Руководство пользователя

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Chapter 5 - Working With Scan Modes Using Color and Power Doppler Image Controls
Terason t3000 / Echo Ultrasound System User Guide 123
To increase the color gain, drag the slider to the right. To decrease the color gain, drag the
slider to the left.
Color Gain Control
You can also adjust the color gain by clicking on the slider (a blue box displays around the
slider) and using the left and right arrow keys.
Adjusting the Color Priority
The color priority of the image defines the amount of color displayed over bright echoes,
and helps confine color within the vessel walls. Color priority affects the level at which
color information overwrites the 2D information. If you must see more flow in an area of
some significant 2D brightness, increase the color priority. To better contain the display of
flow within the vessels, decrease the color priority. If the color priority is set all the way to
the left, no color is displayed.
To increase the color priority, drag the slider to the right. To decrease the color priority,
drag the slider to the left.
Color Priority Control
You can also adjust the color priority by clicking on the slider (a blue box displays around
the slider) and using the left and right arrow keys.
Adjusting the Color Persistence
The color persistence setting determines the amount to be averaged between frames.
Increasing the persistence causes the display of flow to persist on the 2D image.
Decreasing the persistence allows better detection of short duration jets, and provides a
basis for better flow/no flow evaluations. Adjusting color persistence also produces better
vessel contour depiction.
To increase the color persistence, drag the slider to the right. To decrease the color
persistence, drag the slider to the left.
Color Persistence Control
You can also adjust the color persistence by clicking on the slider (a blue box displays
around the slider) and using the left and right arrow keys.
When color persistence is set high, a recalled saved image (single frame) may not look
exactly the same as when the image was saved. When you save a Color Doppler image
with a high color persistence setting to the local computer, this message displays:
Due to the current high level of color persistence, when saved images are reviewed, they will not
appear exactly as saved.