User's Manual

Acclarix LX9 Series Diagnostic Ultrasound System User Manual Imaging
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5 Imaging
5.1 B-mode
5.1.1. Using B-mode
1. Press <B> on the console to enter B mode.
2. Perform the image scanning.
3. Adjust Image parameters to optimize the image.
5.1.2. B-mode Image Optimization
The following touch controls can be used to optimize the B-mode image.
Name
Control
Description
Dynamic
Range
The Dynamic Range, or log compression, adjusts how echo
intensities are converted to brightness. A high dynamic range
will display more shades of gray, while a low dynamic range will
display fewer shades of gray and a more contrasty image.
LGC
Lateral Gain Control (LGC) adjusts the gain along the scan line
to improve the lateral resolution of the image. Press LGC touch
screen key to display 8 gain control sliders. Move the slider
downwards to decrease the gain, while move the slider upwards
to increase the gain.
eSRI
eSRI is Speckle Reduction Imaging. High level provides more
aggressive speckle reduction.
Persistence
Persistence averages frames together to reduce random noise.
There are 4 options: Off, Low, Med., and High. The persistence
level corresponds to the number of frames averaged. The frame
rate is unchanged.
Frequency
Frequency allows selection of the fundamental or harmonic)
frequencies used for imaging. The Harmonic option must be
invoked to access the harmonic frequencies. Frequency
selection is available during live imaging.
Harmonic
The Harmonic control invokes and exits harmonic imaging.
While in harmonic imaging the control is highlighted and an „H‟
is displayed in the B-mode frequency field. Depending on the
transducer there may be multiple harmonic frequencies.