Mindray Consona N9 - PW;CW Mode Image Scanning; PW;CW Mode Image Parameters

6 - 18 Operator’s Manual
6 Image Acquisition
• In PW/CW mode, acoustic power of the transducer is synchronous with that of B mode.
6.8.1 PW/CW Mode Image Scanning
Perform the following procedure:
1. Select a premium image during B mode or B+ Color (Power) scan, and adjust to place the area
of interest in the center of the image.
2. Press <PW> (click [CW] on the touch screen) to adjust the sampling line.
The sampling status will be displayed in the image parameter area.
3. Set the position of the sample line and the SVD by using the trackball, and adjust the angle and
SV size according to the actual situation.
4. Press <Update> to enter PW/CW mode and perform the examination.
Observe and calculate the data based on B mode or Color mode image. You can also adjust the
SV size, angle and depth in the real-time scan.
5. Adjust the image parameters to obtain optimized images.
TIP:
The sampling line is displayed for one procedure operation. Press <PW>/<CW> to enter M mode.
6.8.2 PW/CW Mode Image Parameters
In PW/ CW mode scan, the image parameter area on the left side of the screen shows the real-time
parameter values as follows:
Gain
This function is intended to adjust the gain of spectrum map. The real-time gain value is displayed
in the image parameter area.
Increasing the gain will brighten the image and you can see more received signals. However, noise
may also be increased.
PW Sampling Gate
Adjusts the SV position and size of sampling in PW mode, the real-time value of SV and SVD are
displayed in the image parameter area, in which SV represents the size of the sampling gate, and
SVD represents the sampling depth.
The smaller the SV size becomes, the more accurate the result is; and more information can be
obtained when selecting large SV size.
Items Meaning
FFrequency
GPW/CW gain
WF WF (Wall Filter)
PRF Pulse Repetition Frequency PRF
SVD SV depth
SV SV Size
Angle Angle