User Manual

40
SV
Resume Adjusting the position and width of the pulse Doppler sampling volume gate,the
current SV value is displayed in real time in the image parameter area on the left
side of the screen.
Effect When the sampling gate is small, the obtained result is more accurate, and when the
sampling gate is large, the information range obtained is larger.
Wall filter
Resume It is used to adjust the cut-off frequency of the wall filter in WF-1v Veterinarian Pocket
Ultrasound System and to filter the low frequency noise caused by the vibration of the
vessel wall so as to display the image information effectively. Wall filtervaluesare
displayed in real time in the image parameter area on the left side of the screen.
Influence May cause Losing of signals about blood flow velocity.
Description range
Resume Sets the range of Doppler waveforms involved in the calculation.
Influence This feature is valid for real-time, frozen, and movie playback images.
Automatic calculation and of parameters automatic calculation
Resume The spectrum Doppler waveform is recorded and the parameters are calculated. The
results of the automatic spectrum calculation will be displayed in the measurement
window in real time.
Influence The heart rate value obtained by automatic spectrum calculation may have some
deviation. If you want to obtain accurate heart rate value, please choose manual
measurement to obtain.
Scanning speed
Resume Controls the refresh speed of PW mode.
Effect More detailed observations can be obtained, such as changing the scanning speed to
detect anomalies in the period.
Time mark
Resume Sets the display state of the time flag on the PW image.
Effect It is helpful to accurately locate the time information of special points and identify
the characteristic lesions in the fluctuation cycle.
Influence This feature is valid for real-time, frozen, and movie playback images.
A.Power
Resume
Adjust the power of the probe to emit ultrasound.