User's Manual

Acclarix AX8 Diagnostic Ultrasound System User Manual Imaging
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Dynamic
Range
The Dynamic Range, or log compression, adjusts how signal
intensities are converted to brightness. A high dynamic range
presents a flat spectrum, while a low dynamic range presents a
large range of spectrum brightness.
Focus Pos
The focus position set in B-mode applies to M-mode as well.
Upward presses move the focus shallower, regardless of the
U/D invert status of the M-mode. Downward presses move the
focus deeper.
Sweep
Speed
Sweep adjusts the sweep speed of the M-mode strip. Options of
Slow, Low, Med High and Fast are available. Upward presses
increase sweep speed. Downward presses decrease sweep
speed.
Strip Size
Format changes the relative size of the M-mode strip compared
to the reference image. Full, large, Med and small are available.
Side-by-side
This is an on/off control. When On, the M-Mode strip is
side-by-side with the B-mode image. When Off, the M-Mode
strip is below the B-mode image
Line
Persistence
The line Persistence determines how many M-mode lines are
averaged together for the display, similar to persistence in
B-Mode. Levels of Off, Low, Med and High are available.
Frequency
Frequency determines the transmit frequency used by M-Mode.
Upward presses increase the frequency. Downward presses
decrease the frequency.
Acoustic
power*
Adjusts the acoustic output power of the activated transducer. It
is only available in live imaging. Higher acoustic power numbers
correspond to more brightness and contrast in the image and
more force of penetration, but ALARA principle should be
followed in actual situations.
Table 5-6 M-Mode Touch Screen Controls
5.6 3D/4D Mode*
Depending on the system configuration and regulatory approval, 3D/4D may be available on the
C5-2MQ* transducer. The first step in using 3D or 4D is to activate pre-3D mode. There are two
ways to activate pre-3D mode:
1. Press the 3D/4D button on the touch screen in B-mode.
2. Configure the F1 or F2 hard key to invoke 3D/4D. There are two options to do so, one
labeled „3D‟ and the other „4D‟. These both invoke pre-3D, but with different defaults for 3D