User's Manual

Acclarix AX8 Diagnostic Ultrasound System User Manual Imaging
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eSRI
eSRI is Speckle Reduction Imaging. There are 4 levels: Off, Low,
Med. and High. High level provides more aggressive speckle
reduction.
Persistence
Persistence averages frames together in order to reduce random
noise. There are 4 options: Low, Med., High and Off. The
persistence level corresponds to the number of frames averaged.
The frame rate is unchanged; as each new frame is acquired it is
averaged with the preceding frames.
Frequency
This determines the fundamental or harmonic (with harmonic
invokes) frequencies used for imaging. It is available on live
images.
Harmonic
The Harmonic control invokes and exits harmonic imaging. While in
harmonic imaging the control is highlighted and „H‟ in the B-mode
frequency field. Depending on the transducer there may be multiple
harmonic frequencies.
Spatial
Compounding
Spatial Compounding combines images fired from multiple angles
in order to reduce speckle, reduce shadow artifacts, and enhance
contrast. Spatial compounding is an on/off control.
Foc. Num
Focus Number adjusts the number of focus positions. As the
number of foci increases the frame rate will decrease, but there will
be more image uniformity across depths.
Foc. Pos.
Focus Position adjusts the depth of the focus or foci. Upward
presses move the focus shallower, regardless of the U/D invert
status of the image.
Gray Map
Gray Map adjusts the post processing map used on the B-mode
image. In general, higher map numbers correspond to more
contrast in the image.
Colorize
The Colorize control adds a color tint to the B-mode image.
Tint
The Tint control changes the color tint being used. Gold, Sepia,
Blue, Ice and Clear are available. If Colorize had been off,
changing the Color map control will automatically activate it.
Left/Right
The Left/Right invert control is indicated by a backward R. It toggles
the left/right orientation of the image. The Edan E orientation
marker at the top of the image switches with the left/right invert to
match the orientation marker on the transducer.