Measurement and Analysis
276 Vivid S5/Vivid S6 User Manual
R2424458-100 Rev. 2
Figure 7-11: Measurement and View selection menus
3. Select APLAX.
The AFI application is started. A ROI can be defined.
Note: When performing AFI on all three apical views, the user
is asked to start with the APLAX view. This allows manual
adjustment of the Aortic Valve Closure (AVC) event timing that
is used in the calculation of the longitudinal systolic strain in all
apical views.
AFI on the APLAX view
Defining a ROI
When selecting the view to analyze, the system automatically
displays a frame where the endocardial border is usually
clearly visible. To use another frame, adjust
SELECT FRAME.
To define a ROI, place three points at the endocardial border;
two annular points at the base and one at the apex
(Figure 7-12). Follow the indications displayed on the screen
when placing the three points.
Note: the Yo-yo function is turned on to help finding correct
location for the points. Should you wish to turn it off use the
YOYO soft button.
Note: In case the Yo-yo function is not running place the
trackball pointer in the vicinity of the contour trace to activate it.
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