GE H48651KR, Руководство по обслуживанию

Страница: 198 / 516

GE V
OLUSON
i / V
OLUSON
e
D
IRECTION
KTI106052, R
EVISION
10 S
ERVICE
M
ANUAL
4-6 Section 4-4 - Functional Checks
4-4-1 2D Mode Checks
Figure 4-4 2D Main and 2D Sub
Table 4-3 2D Mode Functions
Step Task Expected Results
1
2D Mode Gain
Rotate the
ACTIVE MODE
rotary control to adjust the sensitivity (brightness)
of the entire image.
2
Transmit Power
Optimizes image quality and allows user to reduce/increase beam intensity.
3
Penetration Depth
Adjusts the depth range of the ultrasound image for the region of interest.
The number of image lines and the frame rate are automatically optimized.
4
Screen Format (Dual, Quad, Single)
Press this keys to change the display Mode from Single to
DUAL
or
QUAD
display mode.
Press the
SINGLE
format key or the
2D MODE
key to change from Dual or
Quad to Single display.
5
Image Orientation (left/right, up/down)
Use these keys on the control panel to alternate the image orientation.
The orientation marker on the screen shows the actual orientation.
6
2D Automatic Optimization
Pressing the
AUTO
key causes automatic optimization of the gray scale to
enhance the contrast resolution.
Pressing again: optimization will be updated and remain active.
Press the
AUTO
key twice to switch off the Automatic Optimization in 2D.
7
XBEAM CRI (CrossBeam Compound
Resolution Imaging)
Pulses are transmitted not only perpendicularly to the acoustic window, but
also in oblique directions. The advantages of XBeam CRI are enhanced
contrast resolution with better tissue differentiation and clear organ borders.