Spectral Doppler Mode Checks - GE Voluson 730Pro Service Manual

GE H - K
EALTHCARE RETZTECHNIK
D , R
IRECTION EVISION
4-4-3

Spectral Doppler Mode Checks

NOTE: Different menus are displayed depending on which Spectral Doppler Mode (PW or CW) is selected.
NOTE: The Continuous Wave Doppler Mode is an Option. The CW key is only illuminated if the option is
installed and the selected probe is capable for the Continuous Wave Doppler Mode.
Table 4-5
Step
1
2
3
4
5
6
7
8
9
4-12
DRAFT (A
Figure 4-8 PW Main and PW Sub
Spectral Doppler Mode (PW, CW) Functions
Task
Gate Position and Gate Size
Activation of Doppler Mode
Doppler Gain
Steering
RT TRACE (Real Time Auto-Trace)
Invert
SPEED
BASELINE
WMF (Wall Motion Filter)
Section 4-4 - Functional Checks
28, 2008)
PRIL
Adjust the Gate- position resp. size with the TRACKBALL in the 2D single image.
The upper trackball key changes from Gate position to Gate size.
Press the right trackball key to activate the motion display.
Press the left trackball key to activate both Modes (B/D).
Rotate the PW MODE key to adjust the amplification of the entire spectrum.
The steering function is only possible with linear probes.
The envelope curve of the Doppler spectrum (maximum velocities) and the
corresponding evaluations are automatically displayed on the monitor.
This function inverts the Doppler spectrum display in relation to the direction of
the flow. (The Invert function is possible in read and write mode.)
By touching up or down, four different sweep speeds can be selected.
Adjusting the baseline is possible in read- and write Mode (up/down in 8 steps).
Used to eliminate Doppler "noise" that is caused by vessel wall motion.
V ® 730P
OLUSON RO
Expected Results
/ P V (BT03)
RO
S M
ERVICE ANUAL