M Mode Checks - GE Voluson i BT06 Service Manual

GE
D KTI106052, R
IRECTION
4-4-2

M Mode Checks

Table 4-4
Step
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For further details refer to the Voluson i / Voluson e Basic User Manual, Chapter "M Mode".
10
EVISION
Figure 4-5 M Main and M Sub
M Mode Functions
Task
Cursor Position
Activation of M Mode
M Mode Gain
M Mode Penetration DEPTH
M Mode Trace Invert
SPEED
FREQ:
ENHANCE
REJECT
DYN CONTR
FORMAT
GRAY MAP
CHROMA
EXIT
Chapter 4 - Functional Checks
Adjust the M Cursor position with the TRACKBALL in the 2D Single image.
Press the right or left trackball key to activate both Modes (2D/M).
Rotate the ACTIVE MODE rotary control to adjust the sensitivity (brightness) of the
entire M image.
Directly Associated with 2D Mode
Press the DOP INV key on the control panel to invert the M mode trace from up to
down in the M mode display area.
(The Invert function is only available with endovaginal probes.)
Press the Soft-menu buttons to select different sweep speeds.
Common with 2D Mode Freq: Resol. Harm.Freq. in case of Harm.
Due to this function a finer, sharper impression of the image is produced.
It determines the amplitude-level below which echoes are not displayed (rejected).
Dynamic enhances a part of the grayscale to make it easier to display pathology.
For selection of three different changes the display of the ratio between the
grayscale image and M-Mode spectrum.
A gray map determines the displayed Brightness of an echo in relationship to its
amplitude.
This defines the relation between echo amplitude (input) and Chroma value (color
tone and saturation) in a look-up table.
Press the EXIT key on the control panel to exit the M Sub menu.
V
OLUSON
Expected Results
Penetration Depth.
i / V e
OLUSON
S M
ERVICE ANUAL
Imaging.
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