Scanning Modes
Vivid S5/Vivid S6 User Manual 149
R2424458-100 Rev. 2
• Use the Focus control to center the focal point(s) around
the region of interest.
• Use the Frequency (move to higher frequencies) or the
Frame rate control (move to lower frame rate) to increase
resolution in image
• Use the Frequency (move to lower frequency) to increase
penetration.
• Use the Reject control to reduce noise in the image.
• Use the DDP control to optimize imaging in the blood flow
regions and make a cleaner, less noisy image.
• Use UD Clarity (Cardiac) or UD Speckle reduce
(non-cardiac) to reduce image speckle. Extra care must be
taken to select the optimal Speckle reduction level, as too
much filtering of speckle can mask or obscure desired
image detail.
• Use Adaptive reject (Cardiac) to reduce near field haze
and blood pol artifact without diluting tissue appearance of
moving structures.
• Press Color maps and select a grey map from the menu on
screen.
The Wide Aperture function may improve image quality by
increasing spatial resolution and signal-to-noise ratio. This
feature involves special processing which allows to improving
the beam focus at large depth by increasing the number of
probe's elements involved in producing the ultrasound beam.
Wide aperture function can not be controlled manually by the
user When using linear or convex probes, the wide aperture
feature may turn on or off automatically, depending on various
scanning settings. In particular it turns on while placing the
focus marker at relatively large depth. Wide aperture
automatically turns off when focus is moved to a shallow
region.
WARNING
Always use the minimum power required to obtain acceptable
images in accordance with applicable guidelines and policies.
To Next Page
Loading...
