GE Voluson 730Pro - CW Operation; Cursor Position and Focus; Activation of CW Mode

Spectral Doppler Mode
7.2.2 CW Operation
The CW operation includes: Cursor Position & Focus (chapter 7.2.2.1)
Activation of CW Mode
(chapter 7.2.2.2)
CW Gain Control (chapter 7.2.2.3)
Sweep Speed
(chapter7.2.2.4)
Audio Signal
(chapter 7.2.2.5)
Invert
(chapter 7.2.2.6)
Angle Correction
(chapter 7.2.2.7)
Baseline
(chapter 7.2.2.8)
WMF
(chapter 7.2.2.9)
Velocity Range (PRF)
(chapter 7.2.2.10)
Real Time Trace
(chapter 7.2.2.11)
Freeze
(chapter 7.2.2.12)
CW Cineloop
(chapter 7.2.2.13)
7.2.2.1 Cursor Position and Focus
In Continuous Wave Doppler, a specific area along the ultrasound beam is sampled.
The location of the CW cursor can be changed with the trackball. The angle correction line on the CW
cursor is at the same time the depth marker for the focus. When changing the focal depth, see the
current value displayed in centimeters on the left side of the display in the image info.
Adjust the CW cursor and the CW Focus with the trackball on the 2D single image.
←→ CW cursor position
↑↓ CW Focus: The angle correction line on the CW cursor is at the same time
the depth marker for the focus.
7.2.2.2 Activation of CW Mode
Press the left trackball key to start the motion display; the 2D image will be frozen. The screen is
divided asymmetrically. The 2D image appears above. The CW spectrum appears below.
Three display formats are possible; review: Format
(chapter 7.2.3.2)
The status area shows the CW activation controls.
Press the left trackball key once more: the spectral display will be frozen and the
2D image returns to write mode.
Voluson
®
730Pro - Basic User Manual
105831 Rev. 0 7-15