GE Vivid 7 Service Manual

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 4 - Functional Checks 4 - 37
4-3-6-6 2D Soft Menu Controls
  
4-3-6-7 Check Compress, Contour, Reject and Tilt 
   
Table 4-9    4-way rocker used for Soft Menu control
KEYDESCRIPTION
A 4-way rocker (4-way multi direction switch) used to;
- access mode-specific menus on the screen.
- select a menu option.
- adjust option-related values.
When using the Rocker;
- the vertical arrows are used to select the menu options.
- the horizontal arrows are used to adjust the values.
Table 4-10    2D Mode: Check Compress, Contour, Reject and Tilt 
StepTaskExpected Result(s)
1. Use the vertical arrows to select Compress. 
Use the horizontal arrows to adjust Compress. Compress controls the amount of contrast in the 2D 
image. 
An index number is displayed in the status window to 
indicate the relative level of compression.
2. Use the vertical arrows to select Contour.
Use the horizontal arrows to adjust Contour. Contour controls image processing related to the 
extent of edge enhancement applied to an image.
3. Use the vertical arrows to select Reject.
Use the horizontal arrows to adjust Reject. When Reject is increased, low-level echoes and noise 
are rejected and appear darker in the 2D image. 
An index number is displayed in the status window to 
indicate the relative level of rejection.
4.
Use the vertical arrows to select Tilt.
Use the horizontal arrows to adjust Tilt.
Tilts the axis of the 2D image to the left or right. 
By using this control in combination with Angle control, 
the image can be “aligned” to the direction of interest, 
and frame rates be optimized. 
By default the axis of symmetry of a 2D image is 
vertical. 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
4 - 38 Section 4-3 - Functional Checks
4-3-6-8 Check DDP, Diff, Power and Dynamic Range
     
Table 4-11    2D Mode: Check DDP, Diff, Power and Dynamic Range
StepTaskExpected Result(s)
1. Use the vertical arrows to select DDP (Data 
Dependent Processing).
Use the horizontal arrows to adjust DDP. Performs temporal processing which reduces random 
noise without affecting the motion of significant tissue 
structures. 
An index number is displayed in the status window 
(under Proc) to indicate the relative DDP level.
2. Use the vertical arrows to select Diff.
Use the horizontal arrows to turn Diff On/Off. Affects the level of reverberations in the image.
When turned ON, the frame rate (or the number of 
focal zones) will decrease, 
while the reverberations 
will be attenuated.
3.
Use the vertical arrows to select Power.
Use the horizontal arrows to adjust Power. Controls the amount of acoustic power applied in all 
modes.
When power is set to maximum, it is equal to or less 
than the maximum acoustic power permitted by the 
FDA.
The Thermal Index (TI) and the Mechanical Index (MI) 
are displayed on the screen.
4.
Use the vertical arrows to select Dynamic Range. 
Use the horizontal arrows to adjust Dynamic Range.
Enables control of the dynamic range or contrast of 
the image.
When Dynamic Range is set high, the image is softer 
and more low-level data is visible. 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 4 - Functional Checks 4 - 39
4-3-7 M Mode Checks
4-3-7-1 Introduction
4-3-7-2 Preparations Use a phantom when doing these tests.
1.) Connect one of the probes, to the  scanner’s left-most probe connector.
-See  3-6-5 Probe Connection on page 3-21  for info about connecting the probes.
-See  Section 9-26 Probes on page 9-80  for available probes.
2.) Turn ON the scanner. -See see  4-2-2 Power ON/ Boot UP on page 4-3  for info about booting the scanner.
The 2D Mode window is displayed (default mode).
3.) Press  M-MODE
 to bring up an M-Mode picture on the screen.Figure 4-29   M-Mode Screen Example 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
4 - 40 Section 4-3 - Functional Checks
4-3-7-2      Preparations (cont’d) Figure 4-30   M Mode, Freeze and Cine Replay controls
Exit
Gain * Mode Dependant 
Keys
Horizontal Sweep*
Frequency
Focus
Contour
Up/Down
Color Maps
Soft menu
Compress
Reject
Dynamic Range
Power
Freeze
Controls marked with * are also 
available in freeze and cine replay
SteCurZoom
Alt. PW CW
TVI
2D MM
Color
Tra
ck
B al
lU
pd
at
e
M e
nu
Act. Win
Act. Mode Img. Size1/2/4
Menu Measure
Exit
Caliper
Img. Store
2DAlt.
R
P
Zoom
Display zoom
HR zoom
Image size
Small/large 2D sector 
top/bottom display
side by side display
M-Mode 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 4 - Functional Checks 4 - 41
4-3-7-3 Check Horizontal Sweep, Frequency, Focus and Contour 
    
Table 4-12    M-Mode: Check Horizontal Sweep, Frequency, Focus and Contour
StepTaskExpected Result(s)
1. Adjust  HORIZONTAL SWEEP 
Adjusts the horizontal refresh rate of the M-Mode area 
of the display.
Horizontal sweep does not  change the acquisition 
resolution, so you can change the horizontal sweep in 
replay without any loss of quality.
2. Adjust  FREQUENCY
Rotate the knob clockwise to increase the probe’s 
operating frequency. The probe’s operating frequency is increased.
The selected frequency is displayed in the status 
window.
For some probes/applications the lowest frequency 
settings will be Octave imaging settings.
3. Adjust  FOCUS
Changes the location of the focal point(s). 
A triangular focus marker indicates the depth of the 
focal point.
4.Adjust CONTOUR
Controls image processing related to the extent of edge 
enhancement applied to an image. 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
4 - 42 Section 4-3 - Functional Checks
4-3-7-4 Check Compress, Reject, Power and Dynamic Range
 
Table 4-13    M-Mode Soft menu Controls check
StepTask Expected Result(s)
1. Adjust Compress  Controls the amount of contrast in the image.
An index number is displayed in the status window to 
indicate the relative level of compression.
2. Adjust Reject Adjust reject level.
When Reject is increased, low-level echoes are 
rejected and appear darker in the image. 
An index number in the status window indicates the 
relative level of rejection.
3. Adjust Power Controls acoustic power in all modes. 
When power is set to maximum, it is equal to or less 
than the maximum acoustic power permitted by the 
FDA.
Both Thermal Index (TI) and Mechanical Index (MI) are 
displayed on the screen.
4.Adjust Dynamic Range
Enables control of the dynamic range or contrast of the 
image. 
When dynamic range is set to High, the image is softer 
and more low-level data is visible. 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 4 - Functional Checks 4 - 43
4-3-8 Color Mode Checks
4-3-8-1 Introduction Color Flow screens is 2D or M Mode screens with  colors representing blood or tissue movement.
Color Flow may be selected both from 2D mode or from M mode or a combination of these.
4-3-8-2 Preparations Use a phantom when doing these tests.
1.) Connect one of the probes, to the  scanner’s left-most probe connector.
-See  Probe Connection on page 3-21  for info about connecting the probes.
-See  Chapter 9 -  , section 9-26 for available probes.
2.) Turn ON the scanner. -See  4-2-2 - Power ON/ Boot UP  on page 4-3 for info about booting the scanner
The 2D Mode window is displayed (default mode).
4-3-8-3 Color 2D Mode Press COLOR
.
4-3-8-4 Color M Mode 1.) Press MM
 (M Mode) to bring up an M Mode display on the screen.
2.) Press  COLOR
. 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
4 - 44 Section 4-3 - Functional Checks
4-3-8-4      Color M Mode (cont’d) Figure 4-31   Color Flow Mode Controls
Exit
Depth
Gain * Mode Dependant Keys
Horiz. sweep (Color M-Mode only) 
*
Scale
Baseline  *
LVR
Invert  *
Variance  *
Color maps  *
Simultaneous (Color 2D only)
Angio (Color 2D only)
Cineloop (in Freeze, Color 2D mode only)
Soft menu
Sample Volume
Tissue Priority *
DDP (Color 2D only)  *
Frequency
Frame rate
Radial avg.
Lateral avg.
Power
Freeze 
Controls marked with * are also  available in freeze and cine replay
ColorZoom
TVI
Zoom
Display zoom
HR zoom
Image size
(Color M-Mode)
Small/large 2D sector 
top/bottom display
side by side display 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 4 - Functional Checks 4 - 45
4-3-8-5 Check Horizontal Sweep, PRF, Baseline, LVR and Invert
 
Table 4-14    Color Flow Mode Controls Check
StepTask Expected Result(s)
1. Adjust Horizontal Sweep (Color M-Mode only)  Adjusts the horizontal refresh rate of the M-Mode area 
of the display.
2. Adjust Baseline  Adjusts the color map to emphasize flow either toward 
or away from the probe. 
Baseline is available in both Live and Freeze.
3. Change PRF (Pulse Repetition Frequency) Adjusts the repetition rate of the Doppler pulses 
transmitted to acquire the data for color flow mapping. 
The PRF (Nyquist limit) should be adjusted so that no 
aliasing occur, while still having a good resolution of 
velocities, meaning the 
Nyquist limit should be 
somewhat above the maximum velocity found in the 
data.
4.Adjust LVR (Low Velocity Rejection
LVR, also called Wall Moti on Filter, enables the extent 
of low velocity removal to be adjusted.
5.Invert
Enables the color scheme assigned to positive and 
negative velocities to be inverted. 
Invert is available in  live and Cine Replay. 
						

							
GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
4 - 46 Section 4-3 - Functional Checks
4-3-8-6 Check Variance, Color Maps and Cineloop
 
Table 4-15    Color Flow Mode: Check Variance, Color Maps and Cineloop
StepTask Expected Result(s)
6. Adjust Variance Controls the amount of variance data added to a color 
display. 
Variance enables computer-aided detection of non-
luminary flow (e.g. jets or regurgitation). 
Variance is available in live and cine replay.
7. Select Color Maps Displays a menu of color map options. 
Use the trackball to point to a color map and press 
SELECT to activate the desired color map. 
Each color map is assigning different color hues to 
different velocities.
8. Make Cineloop (in Freeze, Color 2D mode only)
Starts cine loop acquisition.