PACS
Desktop Viewer
PACS
Desktop Viewer
Embedded overlays are overlays created by third-party devices, such as the imaging modality, and encoded in the image object. When applied to an image, the corresponding image pixel is replaced by an overlay pixel, which when combined with other overlay pixels, result in a graphic displayed on top of the image. Overlays can exist for any object, but are frequently found on summary images or localizer images. By default, overlays are displayed if they exist for an object.
To toggle the embedded overlay setting:
Use the Ctrl-F9 function key
Select Show
Overlays 
from the View menu.