GE Voluson S6 Basic User Manual page 135

6.4.1 Persistence Filter
6.4.2 Line Filter
6.4.3 CRI Filter
Voluson® S6/S8 Basic User Manual
5433669-100 Revision 4
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'Dynamic Control' on page 6-22
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'Optimized Tissue Imaging (OTI)'
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'Enhance' on page 6-22
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on page 6-22
'Reject'
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on page 6-22
'Line Density'
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on page 6-22
'Gray Map'
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on page 13-2
'Utilities'
"Persistence" is a frame averaging function that allows elimination of image
speckle from 2D images. With a higher persistence setting more frames are
averaged. Persistence 1 to 8 can be set in the 2D Sub menu in scan mode.
The Persistence filter is displayed in the Image Info area on the screen.
Remark:
This function is not available if CrossBeam Compound Resolution Imaging (XBeam CRI)
'CrossBeam Compound Resolution Imaging (XBeam CRI)'
The "Line Filter" smoothes the image in the direction parallel to the probe surface (or in a
curve). How much filtering is used can be adjusted by the user, more filtering reduces noise at
the expense of detail in the image.
Three steps are provided: off, low, high
off: no filtering low: filtering of two lines (12,5/75/12,5%) high: filtering of three
lines (25/50/25%)
Remark: This function is not available if CrossBeam Compound Resolution Imaging (XBeam
( 'CrossBeam Compound Resolution Imaging (XBeam CRI)' on page 6-9 ) is switched on.
CRI)
If this filter is set to "8", the XBeam CRI-image is smoothed. CRI Filter setting "off" leads to a
sharper impression of the XBeam CRI-image.
Eight settings are provided: 1, 2, 3, 4, 5, 6, 7, 8
Remark:
This function is only available if CrossBeam Compound Resolution Imaging (XBeam CRI)
'CrossBeam Compound Resolution Imaging (XBeam CRI)'
This process smoothes the final image (structures can be smeared out).
For diagnosis, the Region of Interest must be viewed without CRI filter as well. A smoothed
image could lead to false diagnosis!
on page 6-22
on page 6-9 ) is switched on.
on page 6-9 ) is switched on.
2D Mode
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