Cw Soft Windows 5-40; Filter - Siemens ACUSON Cypress Operator's Manual

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5-40
Soft Windows
CW
Table 20 describes how the Soft Windows and their corresponding knobs on the
keyboard operate in
CW
CW Scanning Soft Windows Options
TABLE 20.
Window Function/Description
Baseline Adjusts the position of the zero-velocity baseline marker. Turn-
ing the
the knob counterclockwise lowers the baseline. There are five
positions:
Baseline at the top
Baseline halfway between the top and middle positions
Baseline in the middle
Baseline halfway between the middle and bottom positions
Baseline at the bottom
Sweep Adjusts the sweep speed of the spectral display. Select a
sweep number from 1 to 4 where the selection is the number
of seconds. For example, Sweep 1 is a 1-second sweep;
Sweep 2 is a 2-second sweep; etc.

Filter

Applies a high-pass filter to the Doppler spectrum. The filter
setting is displayed in the upper left portion of the screen in
Hertz (Hz) (see "Cypress System Data" on page 5-9). The
range is from 200 Hz to 1400 Hz.
Press the corresponding knob to select
To increase the filter setting, turn the knob clockwise.
To decrease the filter setting, turn the knob counterclock-
wise.
Scale Adjusts the velocity scale of the spectral display. The range
depends on the transducer frequency.
Setting the Scale higher increases the velocity limits of the
color flow signal and reduces aliasing. Setting the Scale lower
decreases the velocity limits of the color flow signal. This may
be useful in detecting low velocity blood flow.
Press the corresponding knob to select
To increase the velocity setting, turn the knob clockwise.
To decrease the velocity setting, turn the knob counterclock-
wise.
ACUSON Cypress™ Operator's Manual
scanning.
knob clockwise raises the baseline; turning
BASELINE
.
FILTER
.
SCALE