User Manual

39
Speed
Resume Showing the velocity range of the blood flow, for this product, is actually a
regulation of the speed. The speed value is displayed in real time in the image
parameter area on the left side of the screen.
Effect The color blood flow image can be displayed more clearly and accurately after
adjustment.
A lower velocity range should be used to measure low velocity blood flow, andahigher
velocity range should be used to measure high speed blood flow.
Influence Aliasing is easy to occur when measuring high-speed blood flow using a lower
velocity range.
If the speed scale is too high, it will result in the loss of smaller blood flowsignals.
Baseline
Resume The area where the speed is zero is shown on the spectrum map
Effect The requirements of the speed detected at different parts are adjusted, so that the
display of the blood flow is more clear and the aliasing is eliminated.
A positive value shows a larger range below the baseline and a negative value
shows a larger range above the baseline.
Deflection
Resume Change the incident direction of the acoustic beam in PW mode, so as to changethe
angle between the acoustic beam and the direction of blood flow.
Effect Get more information without moving the probe.
Quick correction angle
Resume The correction angle is adjusted rapidly by 60 degrees step, and the angle value is
displayed on the right side of the spectrum map in real time.
Influence This feature is valid for real-time, frozen, and movie playback images.
Correction angle
Resume Adjusting the measurement speed and the actual speed as close as possible, is a
kind of correction angle.
When adjusting the angle, the angle value is displayed on the right side of the
spectrum map in real time.
Influence This feature is valid for real-time, frozen, and movie playback images.
Overturn
Resume Turn on this function to flip the spectrum.
Influence This feature is valid for real-time, frozen, and movie playback images.