Sonoscape SSI-5500, Руководство пользователя

Страница: 58 / 134

SSI-6000/SSI-5800/SSI-5500/SSI-5500BW
Digital Color Doppler Ultrasound System
Remarks:
• The gain value is displayed on the screen at the 2D Image Info area (
GN ).
• It is possible to change the 2D Gain only when B mode is active, independent
of additional modes.
5.3.3 Time Gain Compensation (TGC)
The TGC are adjustable during the real time scan regardless of
the imaging mode (B, CDI, PW/CW, . . . ) and display format (sin-
gle, dual, quad).
Use the TGC slide control to adjust the gain which allows compensation
for attenuation of the echoes over time (depth).
Move the slide control to the left to decrease the gain at the correspond-
ing depth; move the slide control to the opposite direction to increase the
gain at the corresponding depth.
Remarks:
• The default TGC compensation corresponds to the middle positions at which
the slide controls are.
• Before a slide control is moved, the TGC is kept to its default value independent
of the slider positions.
• TGC curve disappears when the TGC sliders is inactive for more than several
seconds.
5.3.4 Depth
The depth range is adjustable during the real time scan regardless
of the imaging mode (B, CDI, PW/CW, . . . ) and display format
(single, dual, quad).
The depth knob controls the depth range of the ultrasound image. The
system automatically adjusts the frame rate (FPS) and acoustic power
indices (TI, MI ...) according to the depth.
• Flip the
DEPTH
switch downwards to increase the depth range of the 2D image and
the size of image is reduced to display the entire ultrasound image.
• Flip the DEPTH
switch upwards to decrease the depth range of the 2D image and
the ultrasound image is magnified.
Remarks:
• The range of the scanning depth depends on the probe type. Depth is repre-
sented in unit of cm.
• The depth scale is shown on the right side of the ultrasound image.
• The current depth is displayed at the 2D Image Info area and represented by
D
.
P/N: 4701-0061-01B
5-4