6 Image Acquisition
Operator’s Manual
6 - 11
PW mode provides a function to examine flow at one specific site for its velocity, direction and
features; while CW mode proves to be much more sensitive to high velocity flow display. Thus, a
combination of both modes will contribute to a much more accurate analysis.
CW module is optional.
6.7.1 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>/<CW> or the user-defined key 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/trackpad, and adjust the
angle and SV size according to the actual situation.
4.
Press <PW>/<CW> or the user-defined key again or <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.
6.7.2 PW/CW Mode Image Parameters
Gain
This function is intended to adjust the gain of spectrum map. The real-time gain value is displayed
in the image parameter area.
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.
CW Focus Position
To adjust the focus position of CW mode. The real-time focus position value is displayed on the
image parameter area in SVD.
Image Quality
Refers to the transmitting frequency in Doppler mode of the probe, the real-time value of which is
displayed in the image parameter area.
Scale
This function is used to adjust the speed range of color flow, which is adjusted through PRF in the
system. The real-time PRF value is displayed in the image parameter area.
To provide a much clearer color flow image.
Use low PRF to observe low-velocity flows, and use high PRF to observe high-velocity flows.
iTouch
To optimize image parameters as per the current tissue characteristics for a better image effect.
Summary of Contents for Anesus ME7T
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