GE Voluson E8 Service Manual page 154

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IRECTION
Table 4-5
Step
12
SMOOTH
13
FREQU.
14
ENSEMBLE
15
FLOW RES.
16
LINE DENS
SCALE
17
(CFM, HD-Flow, TD)
CFM-MAP
18
(PD, HD-Flow, TD)
19
GENTLY COLOR
20
BALANCE
21
ARTEFACT (on/off)
22
BASELINE
23
LINE F.
For further details refer to the Voluson E8 / Voluson E6, Basic User Manual.
4-18
7 DRAFT (A
EVISION
Color Doppler Mode (CFM, PD, HD-Flow, TD) Functions
Task
To select different filter periods for rising velocity and falling velocity.
RISE Filtering of the rise velocity leads to noise suppression.
FALL This filter leads for "prolongation" of the display flow.
It serves for selection of the Transmit Frequency which also depends on the Color Box
position.
Controls the number of pulses to constitute one Color-, Power-Doppler or HD-Flow line in the
display.
This function controls the axial resolution of color in the display.
It adjusts the axial sample depth of color pixels.
Determines the line density within the Color-Box.
The lower the line density, the larger the line distance and the size of the color pixels.
The maximum velocities are displayed above and under the color scale in kHz, cm/s or m/s.
Provides selectability of the color coding for an optimization of the display of blood flow (similar
to the post-processing curves with grayscale 2D scans).
After a selection has been made, the color bar displays the resultant map.
Gently means the transition between color and gray scale information.
The embedding of the color into 2D Mode is performed smoothly with less colored splashes.
To activate the "Gently Color" function, touch the CFM MAP (PD, HD-Flow, TD) key in the
Submenu.
The Balance controls the amount of Color display over bright echoes and helps to confine
color within the vessel walls.
Switch on/off the artifact suppression.
The baseline shift can be used to prevent aliasing in one flow direction similar to the Doppler
baseline shift. (Impossible in PD Mode.)
With "Line Filter" the signals of the neighboring pulses are less weighted for the display of the
actual pulse which considerably improves the detail lateral resolution and signal-to-noise ratio.
Section 4-4 - Functional Checks
23, 2012)
UGUST
Expected Results
V E8 / V
OLUSON OLUSON
S M
ERVICE ANUAL
E6