Mindray TE5, Руководство оператора

Страница: 85 / 323

Image Optimization 5-23
Trace
Smooth
Adjust through [Trace Smooth] on the menu.
There are 4 levels of smooth effect provided, the bigger the value, the higher the
smooth processing.
Trace
Sensitivity
This function is used to set the sensitivity of tracing in the spectrum.
Adjust through [Trace Sensitivity] on the menu.
There are 5 levels of sensitivity adjustment, the bigger the value the higher the
sensitivity.
Operations In real-time scanning, the results displayed are derived from the calculation of
the latest cardiac cycle.
In the freeze and cine status, the results displayed are calculated from the
current selected area.
Invert
Description This function is used to set how the spectrum is displayed.
Operations Turn the function on or off using the [Invert] control.
Select “Auto Invert” in the [Setup] -> [System] -> [Image], so the spectrum can
automatically invert when the color flow is steered to a certain angle to
accommodate the operator’s desire to distinguish the flow direction.
Speed
Description This function is used to set the scanning speed of PW mode imaging.
Operations Adjust through [Speed (mm/s)] on the menu.
There are 6 levels of scan speed available.
Effects Changing the speed makes it easier to identify the cardiac cycles and to detect
more details.
T/F Res.
Description This function is used to create a balance between time resolution and spatial
resolution.
Operations Adjust through [T/F Res.] on the menu.
There are 4 levels of T/F Res. values available.
Wall Filter
Description It filters out low-velocity signals to provide effective information, and this function
is used to adjust the filtered frequency. The real-time value is displayed in the
image parameter area in the top-left corner of the screen.
Operations Adjust through [WF] on the menu.
7 levels of wall filter function are provided.
Impacts Signals of low-velocity flow may be missing.