B-Mode Menu
SRI
Speckle Reduction Imaging (
SRI
) is an adaptive algorithm to reduce the unwanted
effects of speckle in the ultrasound image. Image speckle usually appears as a
grainy texture in otherwise uniform areas of tissue. Its appearance is related to
image system characteristics, rather than tissue characteristics, so that changes in
system settings, such as probe type, frequency, depth, and others, can change the
appearance of the speckle. Too much speckle can impair image quality and make it
difficult to see the desired detail in the image. Likewise, too much filtering of speckle
can mask or obscure desired image detail. Extra care must be taken to select the
optimal SRI level.
SRI
is available in B-Mode imaging and may be used with any
transducer or clinical application when image speckle appears to interfere with the
desired image detail.
XBeam CRI
Cross Beam Compound Resolution Imaging (CrossXBeam
CRI
™) is the process of
combining three or more frames from different steering angles into a single frame.
CrossXBeam
CRI
™ is available on Convex and Linear probes.
HI
Harmonic Imaging on/off
Image Pos Flips the image vertically.
Angle
Image Angle selects a part of interest of the 2D image. The advantage of the
decreased field of view is an increased 2D frame rate due to the smaller sector
width.
Max Angle
Double tap Angle or use on screen gesture to display maximum probe angle.
Foc. Zones Focal Zones increases the number of focal zones or moves the focus zone(s) so
that you can tighten up the beam for a specific area.
Dyn. Contr.
Dynamic Contrast controls how echo intensities are converted to shades of gray,
thereby increasing the adjustable range of contrast.
Har. Frq.
Adjusts the Harmonic Frequencies.
Cine #
Select the desired Cine #.
Gray Map
The Gray Map determines the displayed brightness of an echo in relationship to its
amplitude. Depending on individual requirements a “harder” or “softer” image can
be obtained with this function and can be adjusted in freeze and in scan mode
(post-processing).
Tint Map
Displays the tint map selections on the monitor.
CRI
Opens Compound Resolution Imaging.
Line Filter
Line Filter smoothens the image in the direction parallel to the probe surface (or in a
curve).
Line Dens.
Line Density optimizes B-Mode frame rate or spatial resolution for the best possible
image. It allows to make a trade-off between image resolution and frame rate.
Persist.
Persistence is a frame averaging function that allows elimination of image speckle
from 2D images. With a higher persistence setting more frames are averaged.
Enhance
Edge Enhance brings out subtle tissue differences and boundaries by enhancing
the gray scale differences corresponding to the edges of structures. A fine, sharper
impression of the image is produced.
Reject
Rejection selects a level below which echoes will not be amplified (an echo must
have a certain minimum amplitude before it will be processed). It determines the
amplitude threshold above which ultrasound echoes are displayed on screen.
2D Mode
Voluson™ SWIFT / Voluson SWIFT+ Instructions For Use
5831612-100 R
evision 4 6-5
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