GE Vivid 7 User Manual

Quantitative Analysis
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Quantitative Analysis window
Over view
 Figure 7-1: The Quantitative analysis window (here with TVI data)
The color cineloop window
1. Color cineloop window
2. Tissue cineloop window
3. Analysis window
4. Sample Area5. Time at cursor position and velocity at cursor 
position
6. Trackball Assignments
7. Sample area tools
7 

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Displays TVI, Tissue Tracking, Strain, Strain 
rate or Angio color-coded data.
Sample area (1):
Indicates sampling position of the velocity 
(TVI), displacement (Tissue Tracking), percent 
deformation (Strain), deformation rate (Strain 
rate) or intensity (Contrast) trace. The sample 
area is color-coded: the first sample area is 
yellow, the second green...etc.
a) Shown only when a sample area is 
selected (pointed at).
b) With Contrast...

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The Tissue cineloop window
Displays 2D data
Sample area (1):
Indicates sampling position of the velocity 
(TVI), displacement (Tissue Tracking), percent 
deformation (Strain), deformation rate (Strain 
rate) or intensity (Contrast) trace. The sample 
area is color-coded: the first sample area is 
yellow, the second green...etc.
Sample area tools:
•  : creates a sample area based on 
freehand drawing.
•  : creates a sample area with a...

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The analysis window
TVI:
Displays velocity trace
1. Y axis: velocity scale (cm/s)
2. X axis: Time (s)
3. ECG
4. Time at cursor position
5. Velocity at cursor position
6. Velocity at frame marker position 
(color coded)
Tissue Tracking:
Displays tissue displacement trace
1. Y axis: displacement scale (mm)
2. X axis: time (s)
3. ECG with Tracking start and Tracking 
end markers
4. Time at cursor position
5. Displacement at cursor position...

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Strain:
Displays Strain trace (extent of tissue 
deformation (%))
1. Y axis: percent displacement
2. X axis: time (s)
3. ECG with Strain start and Strain end 
markers
4. Time at cursor position
5. % deformation at cursor position
6. % deformation at frame marker 
position (color coded)
Contrast:
Displays time-intensity curve
1. Y axis: Intensity scale (logarithmic) 
(dB) or linear acoustic units (AU).
2. X axis: Time (s) or dT (s),...

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a) With contrast data only.
b) Shown only in zoom mode.The analysis window system menu:
This menu is entered by pressing 
UPDATE 
MENU when the QA cursor is within one of the 
analysis window.
• Delete all Sample areas: removes all traces 
at once.
• Analysis signal: toggles trace display 
between velocity, displacement, strain rate, 
stain or greyscale intensity curves.
• Drift compensation: compensates drifting 
of strain or Tissue...

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The Trackball assignments
QA:
Pointing tool in Quantitative analysis mode.
Scroll/Speed:
•  When the cineloop is stopped, enables 
scrolling through the cineloop.
•  When the cineloop is running, enables 
control of the cine replay speed. 

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Generation of a trace
Up to eight traces can be generated.
About the sample area
The sample area can be in three different states:
• Free sample area: freely moving sample area (QA cursor) 
before anchoring.
The free sample area 
disappears when the 
QA cursor is moved 
over a static an-
chored frame.• Static sample area: the free sample area is anchored by 
pressing 
SELECT on the Trackball area.
• Dynamic anchored sample area: the...

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that the Strain cursor is within the myocardium when anchoring 
the sample area.
Trace from a freehand sample area
1. Select the Pencil button .
2. Trackball to one of the Cineloop windows.
The trackball cursor is changed to a cross.
3. Press and hold down the 
SELECT button while drawing a 
sample area with the trackball.
4. Release the 
SELECT button.
The sample area is automatically closed.
The trace is updated accordingly in the...

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To move a dynamic anchored sample area
1. Press TRACKBALL until the Scroll trackball assignment is 
selected.
In these frames the 
sample area is 
marked with an an-
chor.2. Using the trackball, browse through the cineloop to display 
one of the frames where the sample area was anchored.
3. Press 
TRACKBALL until the QA trackball assignment is 
selected.
4. Trackball to the sample area to move, in one of the 
Cineloop windows.
5. Press...