GE Vivid 7 User Manual

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Appendix
This chapter includes the following information:
• Product description  ...................................................................... ..  488
• Probe/Application overview  ......................................................... ..  504 

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Product description
System Architecture
•  TruScan architecture unleashes powerful imaging 
capabilities for the Vivid 7/Vivid 7 PRO. the Vivid 7/
Vivid 7 PRO is a complete digital cardiovascular color flow 
Doppler ultrasound system. The elements of TruScan are:
• Tru D a ta - New 3D Beamforming technology significantly 
improves image quality with breakthrough performance 
in 2D, color and Doppler imaging.
• QScan - Helps you extract more...

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algorithms for each mode
•  Parallel data processing on four channels
•  Receive focusing, aperture, apodization, and frequency 
response are all continuously variable as a function of 
depth 
Data Processing
•  TruScan architecture provides raw data management 
integrated into scan conversion processing
•  PipeLink Technology: high speed parallel data bus for pre- 
and post-processing
•  Echo data processing of phase, amplitude and frequency...

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Display Annotations
•  On-screen display of Mechanical Index (MI)
•  On-screen display of Thermal Index
• Patient name/ID
• Hospital name
• Time/date
•  Trackball driven annotation arrows
• Scanning parameters
• Active mode display
•  Stress protocol parameters
•  Parameter annotation follow ASE standard
Tissue Imaging
General
•  Variable transmit frequencies for resolution/penetration 
optimization
•  Display zoom with zoom area control
•  High...

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• Confocal Imaging - allows for multiple transmit focal zones 
over range of view and a high vector density - probes 
dependent.
•  Variable image width: a reduction either increases frame 
rate or increases the number of focal zones while 
maintaining the frame rate - application dependent
• Real-time Compound Imaging mode with linear arrays: for 
improved delineation of curved structures and speckle 
reduction without loss of any image resolution...

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Anatomical M-Mode
•  M-Mode cursor can be adjusted at any plane
•  Curved Anatomical M-Mode: free (curved) drawing of M-
Mode generated from the cursor independent from the axial 
plane
•  Can be activated from live, digital replay or image clipboard 
recall
•  Anatomical Color and Tissue Velocity M-Mode
•  M & A Capability
Color Doppler
General
•  Steerable Color Doppler available with all imaging probes - 
max steering angle is probe dependent
•...

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Color Doppler Imaging
•  Very high digital signal processing power, maintaining high 
frame rates with large ROIs even for very low PRF settings
•  Frame Rate in excess of 100 fps, depending on probe and 
settings
•  Variable ROI size in width and depth
•  User-selectable Radial and Lateral Averaging for reduction 
of statistical uncertainty in the color velocity and variance 
estimates
•  Data Dependent Processing (DDP) performs temporal 
processing...

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• M&A capability
Spectral Doppler
General
•  Operates in PW, HPRF, and CW modes
•  Trackball Steerable Doppler available with all imaging 
probes - max steering angle is probe dependent
•  Selectable Doppler frequency for better optimization
•  High-Quality Real-time duplex or triplex operation in all 
Doppler Modes, CW and PW and for all velocity settings
•  Frame Rate Control for optimized use of acquisition power 
between spectrum, 2D, and Color...

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•  Stereo speakers mounted in the front panel
•  Display annotations of frequency, mode, scales, Nyquist 
limit, wall filter setting, angle correction, acoustic power 
indices 
PW / HPRF Doppler
•  Automatic HPRF Doppler maintains its sensitivity even for 
shallow depths and with the highest PRFs
•  Digital Velocity Tracking Doppler employs processing in 
range and time for high-quality spectral displays
•  Adjustable sample volume size of 1-20 mm...

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Strain rate/Strain imaging (option, 
Vivid 7 only)
Research
•  Rate of tissue deformation is calculated and displayed as 
real time color-coded overlay on the 2D image
•  Tissue deformation (Strain) is calculated and displayed as 
real time color-coded overlay on the 2D image
•  Cine compound calculates and displays cineloops 
generated from a temporal averaging of multiple 
consecutive heart cycles
•  Anatomical M-Mode and Curved Anatomical M-Mode...