Mindray TE5, Руководство оператора

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5-20 Image Optimization

When you adjust the depth of the B mode image, related changes will occur in the PW/CW
mode image as well.
 Most of the parameters are the same for the PW mode and CW modes, so parameters of both
are combined together to be introduced here.
Only phased probes support CW mode.
5.6.3 PW/CW Mode Image Optimization
Gain
Description This function is intended to adjust the gain of the spectrum map. The real-time
gain value is displayed in the image parameter area in the top-left corner of the
screen.
Operations Drag the [Gain] control on the right part of the image area to adjust the gain.
Effects Increasing the gain will brighten the image and you will see more received
signals. However, noise may also be increased.
SV
Description To adjust 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 the top-left corner
of the screen.
SV size Adjust SV size by finger gesture. Use two fingers to adjust the SV size by
pinching movement on the image area.
The adjusting range is 0.5-20 mm.
SVD Tap and drag the SV gate to change depth.
Effects The smaller the SV size, the more accurate the result. More details are obtained
when selecting a large SV size.
CW Focus Position
Description To adjust the CW mode SVD. The real-time focus position value is displayed in
the image parameter area in the top-left corner of the screen.
Operation Tap and drag the SV to select the focus depth.
Frequency (Image Quality)
Description Refers to the operating frequency of the probe in PW mode, the real-time value
of which is displayed in the image parameter area in the top-left corner of the
screen.
Operation
Select the different frequency values through at the left part of the image
area.
The adjusting range of frequency values can be divided into 3 levels:
penetration preferred (Pen), general mode (Gen), and resolution preferred
(Res).
Select the frequency according to the detection depth and current tissue
features.