Image Optimization  5-21 
5.  The image is frozen after completing the capture. Review the single-frame or cine file. 
6.  Measure speed, volume flow and WSS. Click [Import data] to import result window and velocity 
curve data. 
7.  Press <B> on the control panel or the user-defined key to quit V Flow mode.   
5.6.2  V Flow Mode Image Parameter 
The parameters on B mode and Color mode are same with these on V Flow mode during V Flow scan. 
During V Flow scan, menus of image optimizing for B mode, Color mode and V Flow are displayed on 
the touch screen at the same time. You can switch among them by tapping the mode tabs. 
In Color Mode, acoustic power is synchronous with that of B Mode. Adjustment of the depth to the B 
mode image will lead to corresponding changes in V Flow mode image. 
5.6.3  V Flow Mode Image Optimization 
Quality 
To adjust the image quality 
  Tap [Quality] to adjust the parameter. 
There are seven values of the spectrum. 
Impacts  The filling, smoothness and the image effect have slight change after completing the v 
flow adjustment.   
 
V Flow Map 
 
This function is a combination of several image parameters, which indicates the 
display effect of color image. The blood flow information is displayed via switching 
among the different spectrums.   
Operation  Tap [V Flow Map] to adjust the parameter. 
There are four values of the spectrum. 
Impacts  The color of the arrow changes after completing the adjustment.   
 
Gain 
Description  Used for adjusting the sensitivity of the blood flow signal. 
Operation  Rotate the knob under [Gain] to adjust the parameter. 
Impacts  The filling of the blood becomes more with the value becoming larger, and the arrows 
becoming more. 
The filling of the blood becomes less with the value becoming smaller and the arrows 
becoming less. 
 
Arrow Density   
Description  Used for adjusting the arrows’ number in the unit area. 
Operation  Rotate the knob under [Arrow Density] item on the touch screen. 
Impacts  The arrow becomes more with the density becoming more compacted.   
The arrow becomes less with the density becoming fewer.