GE Healthcare Senographe DS Acquisition System
Revision 1 Operator Manual 5307907-3-S-1EN
Viewer
11-viewer.fm Page no. 105 Chapter 11
2-4 Image control
Invert
Click the Inv. button to invert the image contrast and brightness values, so that any microcalcifications
present appear black. Press the button again to return the display to the original default values, so that
microcalcifications appear white.
Auto Windowing
• Four windowing values are stored with the image: Standard, High, Low, and User. Use the Medical
Application Preferences Auto Windowing panel (see Chapter 8 Browser) to select which of these val-
ues is to be used by default when first displaying an image in the Viewer. When User is selected, the
system automatically optimizes the contrast (Window Width) of the image and uses this value as the
default user value if it is less than the Standard value. When User is selected, and the WW value
computed is greater than the Standard value, the Standard setting is used instead. The User level
can be overwritten if the user saves the image with modified levels.
• The button at the bottom right of the View Control panel shows the name of the windowing value cur-
rently applied. To change it, click the button and select the desired setting from the drop-down menu.
FOR TRAINING PURPOSES ONLY!
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