Image Optimization 5-3
Operation Rotate the <B> knob clockwise to increase the gain, and anticlockwise to
decrease.
Or adjust it in the image parameter area.
The adjusting range is 0-100.
Effects Increasing the gain will brighten the image and you can see more received
signals. However, noise may also be increased.
Depth
Description This function is used to adjust the display depth of sampling, the real-time
value of which is displayed on the image parameter area in the upper left
corner of the screen.
Operation Rotate the “Depth” knob clockwise to increase the depth;
Rotate the “Depth” knob anticlockwise to decrease the depth.
The adjustable depth values vary depending upon the probe types.
Effects Increase the depth to see tissue in deeper locations, while decrease the
depth to see tissue in shallower locations.
Impacts Depth increase will cause a decrease in the frame rate.
TGC
Description The system compensates the signals from deeper tissue by segments to
optimize the image.
There are 8-segment TGC sliders on the control panel corresponding to
the areas in the image.
Operation To increase the gain compensation at an area of interest, move the TGC
slider to the right.
To decrease the gain compensation at the corresponding area of interest,
move the TGC slider to the left.
About 1.5s after the adjustment is finished, the TGC curve disappears.
Effects Adjust the signal gain for the certain image area to get a balanced image.
Frequency
Description This function is used to select the operating frequency of the current
probe, the real-time value of which is displayed in the image parameter
area in the upper left corner of the screen, where “F” represents B mode
frequency, and “FH” represents harmonic frequency.
Operation You can select a harmonic frequency or a B mode frequency.
Adjust the frequency value through the [Frequency] item in the soft menu,
“H” indicates harmonic frequency.
Values of frequency vary depending upon the probe types.
Select the frequency according to the detection depth and current tissue
characteristics.
Effects The higher the frequency the better the near field resolution but the worse
the force of penetration.
Harmonic imaging enhances near field resolution and reduces low-
frequency and large amplitude noise, so as to improve small parts
imaging.