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M-Mode Soft menu controls
Compress
Controls the amount of contrast in the image. An index number
is displayed in the status window to indicate the relative level of
compression.
Reject
Adjust reject level. When this control is increased, low-level
echoes are rejected and appear darker in the image. An index
number is displayed in the status window to indicate the
relative level of rejection.
Power
Controls the amount of acoustic power applied in all modes.
When power is re-
duced, it reduces
When power is set to maximum, it is equal to or less than the
the signal-to-noise
maximum acoustic power permitted by the FDA. The Thermal
ratio, so that the im-
Index (TI) and the Mechanical Index (MI) are displayed on the
age, spectrum or
screen.
color scan may be-
come noisier.
Dynamic Range
Enables control of the dynamic range or contrast of the image.
When dynamic range is set to High, the image is softer and
more low-level data is visible.
Using M-Mode
Conventional M-Mode (greyscale)
1.
2.
3.
Gain, Frequency,
Focus, Dynamic
4.
Range and Com-
pression affect also
OR
the 2D image.
1.
Gain, Frequency,
Focus, Dynamic
Range and Com-
2.
pression affect also
the 2D image.
Vivid i User's Manual
2378958-100 Rev. 02
While in 2D-Mode press cursor on the control panel.
Use the trackball to position the cursor over the required
area of the image.
Press
- the M-mode sweep will start to sweep.
MM
Press
to stop imaging.
FREEZE
While in 2D-Mode press
M-mode sweep will start to sweep.
Use the trackball to position the cursor over the required
area of the image.
Scanning Modes
on the control panel. The
MM
85
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