Specifications

Rev 1.1 VisualSonics Vevo 2100 Imaging System Operator Manual 351
Chapter 47: Acquiring Contrast Mode images
Adjusting the contrast dynamic range
Contrast DR is a dynamic range control that modifies the intensity of the contrast
data overlay. You can set the value from 5dB-50dB. The lower you set the
dynamic range, the more intense the contrast data appears.
f To adjust the contrast overlay dynamic range:
1. In the Contrast DR slider control, drag or click in the range bar to coarsely set
your contrast.
2. Click the – or + controls to fine tune the parameter by increments of 1dB.
Adjusting the threshold
The Threshold control sets the threshold at which the system displays no contrast
image data. You can set the threshold in a range between 1% and 100%.
As shown in the following example, the lower you set the threshold, the more
contrast image data you display.
f To adjust the contrast overlay data threshold:
1. In the Threshold slider control, drag or click in the range bar to coarsely set
your threshold.
2. Click the – or + controls to fine tune the parameter by increments of 1%.
Related information
 Typical Contrast Mode image acquisition session (page 338)