Samsung MYSONO U6 Manual de usuario Pagina 133

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4-25
Chapter 4 Diagnosis Modes
X
Finishing HPRF
While HPRF is in use, decrease the scale value by one step to nish HPRF. Here, PRF value becomes
the maximum value in the current PW Spectral Doppler mode.
X
Moving Sample Volume
To move the Sample Volume position in the D Only state, the system calculates PRF values and
the Phantom Gate position, and updates them on the PW Spectral Doppler image. HPRF is
terminated when HPRF cannot be activated.
When Sample Volume is moved in the 2D Only state, the PRF values don’t change.
CAUTION:
X
While in a zoomed in state, the phantom gate position can move outside the 2D image area.
X
Make sure that sample volume and Phantom Gate are not placed together in the measuring
area. If more than two Sample Volumes are located in the vessels, all Doppler components will
appear in the spectrum, causing noise.
PW Spectral Doppler Mode Soft Menu
NOTE: The soft menu referred in this manual can be accessed from default settings at Utility >
Menu Edit.
The soft menu in PW mode consists of the following:
1 2 3 4 5 6
Steer Speed
Angle
(10 Step)
SV Size BaseLine Scale
Doppler Invert Simultaneous
Angle
(60 Step)
AutoCalc Mean Trace
Display Format Dynamic Range Spectrum Ehn.
AutoCalc
Direction
Power Frequency
Doppler Avg. Filter TDW
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