GE Vivid 7 Service Manual

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 4 - Functional Checks 4 - 57
4-3-11 Tissue Velocity Imaging (TVI) Checks
4-3-11-1 Introduction TVI calculates and color codes the velocities in tissue. The tissue velocity information is acquired by 
sampling of tissue Doppler veloci ty values at discrete points.
4-3-11-2 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 ,...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
4 - 58 Section 4-3 - Functional Checks
4-3-11-2      Preparations (cont’d) Figure 4-34   Doppler Mode Controls
Mode Dependant Keys
2D Width
Scale
Transparency
Threshold
Invert *
Tissue Tracking
Simultaneous *
Cineloop (Freeze only)
Color Maps
Soft menu
Tissue Priority *
Frame Rate
Compress *
Reject *
Frequency
Lateral Average
Radial Average
Baseline *
Power
TVI
Freeze
2D
Alt.
Alternatives
Anat. M-Mode
Curved Anat. M-Mode
Zoom...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 4 - Functional Checks 4 - 59
4-3-11-3 Check 2D Width, Scale,  Transparency and Threshold
  
Table 4-23    TVI Mode Controls Checks
StepTaskExpected Result(s)
1. Adjust 2D WIDTH
Controls the size or angular width of the 2D sector. 
2. Adjust  SCALE
Controls the repetition rate of the Doppler pulses 
transmitted to acquire the data for color mapping. 
The scale value influences the Nyquist limit (the ability 
to detect...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
4 - 60 Section 4-3 - Functional Checks
4-3-11-4 Check Invert, Tissue Tracking, Simultaneous and Color Maps  
  
Table 4-24    TVI Mode Controls Checks
St e pTa s kExpected Result(s)
5. Press  INVERT
 
Enables the color scheme assigned to positive and 
negative tissue velocities to be inverted. 
Invert is available in live and cine replay.
6. Press  TISSUE TRACKING
 
Starts Tissue Tracking mode.
7. Choose  COLOR MAPS
Displays a drop...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 4 - Functional Checks 4 - 61
4-3-11-5 Check Tissue Priority, Frame Rate, Compress, Reject, Frequency, Lateral & Radial Average,  Baseline and Power
    
Table 4-25    TVI Mode: Soft Menu Controls Check 
StepTask Expected Result(s)
8. Adjust  TISSUE PRIORITY 
Emphasizes either the color of the TVI or the greyscale 
tissue detail of the 2D image.
Tissue priority is avail able in both Live and Freeze.
9. Adjust  FRAME RATE...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
4 - 62 Section 4-3 - Functional Checks
13.Adjust  LATERAL AVERAGE 
Smooths the image by averaging collected data along 
the same horizontal line. An increase of the lateral 
averaging will reduce noise, but  this will also reduce the 
lateral resolution.
14. Adjust  RADIAL AVERAGE
 
Smooths the image by averaging collected data along 
the same radial line. An increase of the radial 
averaging will reduce noise, but  this will also...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 4 - Functional Checks 4 - 63
4-3-12 Contrast Checks
Refer to Chapter 5 in Vivid 7 User Manual.
4-3-13 Stress Echo
Refer to Chapter 4 in Vivid 7 User Manual. 

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
4 - 64 Section 4-3 - Functional Checks
4-3-14 Measurements and Multi Image Checks
4-3-14-1 Introduction to Measurements & Analysis (M&A) • A complete M&A software package for  Cardiac is included in the Vivid 7. 
• The M&A software runs on the Back-End Processor.
• In this test, we just check one measurement, Calipers.
4-3-14-2 Preparations, M&A Figure 4-35   Measurement Keys
Table 4-26     Measurement Key Checks
StepTask Expected...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
Chapter 4 - Functional Checks 4 - 65
4-3-14-3 Check Caliper Measurement, Distance
4-3-14-4 Check Post-measurement assignment labels
   
Table 4-27     Measurement Key Checks
StepTask Expected Result(s)
4. Press MEASURE
 on the Operator Panel.
Select  Caliper  in the Measurement menu.
or
Press  CALIPER
 on the Operator Panel.
Press the  CALIPER
 mode dependant button The Measurement menu with a list of studies is 
displayed in the...

GE HEALTHCARE
DIRECTION FC091194, REVISION 11    VIVID 7 SERVICE MANUAL 
4 - 66 Section 4-3 - Functional Checks
4-3-15 Multi Image Checks
4-3-15-1 Introduction to Multi Image This unit has a special function for displaying tw o or four examination pictures at the same time
 
4-3-15-2 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 , page 3-21 for info about connecting the probes
-See  Probes, page 9-80...