Image Optimization 5-25
Scale
Description 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 will be
displayed in the image parameter area in the upper left corner of the
screen.
Operation Adjust the speed range through the [Scale] item in the menu or the soft
menu.
The adjusting range varies by frequency, probe and depth; adjust
according to the actual situation.
Effects 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.
Impacts Aliasing may occur if low velocity scale is used and high velocities are
encountered.
Low velocities may not be identified when a high velocity scale is used.
iTouch
Description To optimize image parameters as per the current tissue characteristics for a
better image effect.
Operation Press <iTouch> on the control panel to enter the iTouch status, the symbol
of which will be displayed in the image parameter area of the screen.
You can preset the mode for iTouch function.
It is not available in the CW mode.
Auto Calculation and Auto Calculation Parameter
Description This function is used to trace the spectrum and calculate parameters of
PW/CW mode image, and the results of which are displayed in the result
window.
Operation Click [Auto Calc] in the soft menu or menu to turn on or off the function.
Select parameters in the dialogue box prompted by clicking [Auto Calc
Param].
In real-time scanning, the results displayed are derived from the calculation
of latest cardiac cycle.
In the freezing and cine status, the results displayed are calculated from
the current selected area.
You can define user-defined key for auto calculation function in "[Setup] →
[System Preset] → [Key Config]".
Impacts Note: heart rate value obtained by auto calculation may be of deviation,
please adopt manual measurement or ECG function (optional) to get the
precise value.
Auto Calc Cycle
Description To set the number of heart cycle for auto calculation.
Operations Click [Auto Calc Cycle] on the soft menu or the menu.
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