Doppler Modes
8.1.2 PW Operation
8.1.2.1 Gate Position and Gate Width
8-4
•
The Steering function is only available with linear probes.
The PW operations:
•
'Gate Position and Gate Width'
•
'Activation of PW Mode'
•
on page 8-5
'PW Gain Control'
•
'PW Automatic Optimization'
•
on page 8-40
'Sweep Speed'
•
on page 8-32
'Audio Signal'
•
on page 8-37
'Invert'
•
on page 8-31
'Angle Correction'
•
on page 8-33
'Baseline'
•
'Wall Motion Filter (WMF)'
•
'Velocity Range (PRF)'
•
on page 8-38
'Real Time Trace'
•
on page 8-6
'Freeze'
•
on page 8-6
'PW Cineloop'
In Pulsed Wave Doppler, a specific area along the ultrasound beam is sampled. This area is
called the gate. The gate is located on the ultrasound beam and is displayed by two lines
perpendicular to the beam line. You can change the location and size of the gate. The location
of the gate can be changed with the trackball; the width of the gate can also be changed with
the trackball (press the upper trackball key to change the function of the trackball). Location of
the gate allows examination of the blood flow at this site. When changing the gate size, in
update or simultaneous mode, the current value of it is displayed in millimeters on the left side
of the display in the image info.
Adjust the PW cursor and Gate Position with the trackball on the 2D single image. ←→ PW
cursor position ↑↓ Depth of gate position
The gate size can be adjusted in twelve steps: 0.7mm, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm,
7mm, 8mm, 9mm, 10mm and 15 mm.
The upper trackball key switches between gate position and gate width. Press the upper
trackball key to change from PW cursor and gate position to gate size. Press it once more to
return to the position change.
↑ decrease the gate size ↓ increase the gate size
on page 8-4
on page 8-5
on page 8-5
on page 8-41
on page 8-40
Voluson® S6/S8 Basic User Manual
5433669-100 Revision 4
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