Chapter 12
Page no. 136
12-imgac.fm
GE Healthcare
Senographe DS Acquisition System
Revision 1
Operator Manual 5307907-3-S-1EN
Image Acquisition Procedure
-
Premium View. This is an image processing algorithm which increases the visibility of breast
structures. The main advantage is to provide a single breast image, where the contrast in the fatty
tissues is similar to the one obtained by setting WW (window width) and WL (window level) for
optimum visualization of fatty tissues, and the contrast in the fibro-glandular tissue is similar to the
one obtained by setting WW and WL for optimal visualization of fibro-glandular tissues. Premium
View algorithm also includes a Thickness Equalization algorithm to enhance the visibility of sub-
cutaneous tissues.
Under certain specific conditions (e.g. particular exposure techniques) the Premium View algo-
rithm cannot be applied.
Note:
Premium View is an image processing algorithm optimized for the structure of breast imag-
es.
-
When imaging an object with thick or sharp borders (e.g., a phantom), one might see
an enhanced brightness at the border of the object. This enhancement is normal and is
not expected to affect correct phantom scoring.
Note:
When acquiring images with Spot paddle in Mag mode or in Contact mode, the Premium View al-
gorithm output may not be optimal. In this case, a satisfactory image display may be obtained by
adjusting window level and window width.
•
Auto-contrast. This improves image quality by optimizing the levels of brightness (window level) and
contrast (window width) in the image.
•
As soon as the selected algorithm has been applied, the processed image replaces the raw image on
the screen. The operator can select which of four levels of contrast should be applied (
High
,
Low
,
Standard
, or
User
defined, selected in the Viewer Control Panel window).
For Premium View, there is no predefined user value, but
User
level can be set if the user saves the
image with modified levels.
FOR
TRAINING
PURPOSES
ONLY!
NOTE:
Once
downloaded,
this
document
is
UNCONTROLLED,
and
therefore
may
not
be
the
latest
revision.
Always
confirm
revision
status
against
a
validated
source
(ie
CDL).
