GE Optima XR646 Operator's Manual page 428

Table 15-10 Image Processing parameters
Parameter
Edge The amount of detail visible in bone structures. Increased edge equals increased
detail.
 Move the slider right to make images sharper.
 Move the slider left to make images smoother.
Range: 1 to 10 (discrete setting) with increments of 1
Noise Reduction Suppresses the mottle noise in denser areas of the anatomy while preserving detail
in the rest of the image.
Available options are:
 None – no noise reduction
 Low
 Medium
 High – maximum noise reduction
Note: The noise reduction feature suppresses the mottle noise in denser areas of
TE Settings See Tissue Equalization section for range and effect of TE sliders.
Note: The combined total of the TE Under-penetrated and TE Over-penetrated
13. When finished adjusting parameters, click [SAVE] or [SAVE TO MULTIPLE].
 [SAVE] applies the parameters to the currently selected patient size.
 A message appears: "Save changes?"
14. Click [YES].
 [SAVE TO MULTIPLE] applies the parameters to multiple patient sizes within the selected anatomy.
 The Save to Multiple screen appears.
15. Select the Patient Size to save the new look to.
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the anatomy while preserving detail in the rest of the image. The algorithm
takes into account tissue penetration and dose reaching the receptor. For
example, if two Chest PA images were acquired on the same patient, one
with much higher dose than the other, noise reduction may only affect the
lower dose (higher noise) image. In general, the lowest Noise Reduction set-
ting that produces the desired image quality should be selected.
areas cannot exceed 100%. The slider will automatically stop and a message
appears: "The Total Area cannot exceed 100%. Reduce the (Under- or Over-)
Penetrated area to proceed."
Definition
Chapter 15: Preferences
15-53