Measurements and Analysis
8-40 Vivid S70 / S60 – User Manual
BC092760-1EN
01
• Prioritize event timing – Select "yes" to use "event
timing" values for AVC if there are some in the current
exam and AVC Stage mode is on "Auto".
• Ef reminder – Select "yes" to be reminded to visit the EF
layout on A4CH and A2CH views analysis. Visiting the
EF layout is mandatory to obtain EF values in
Worksheet while using AFI for the analysis.
Figure 8-20. AFI configuration
AutoEF measurements
Automated Ejection Fraction (AutoEF) is a semi-automatic
measurement tool used for measurement of the global EF
(Ejection fraction). The AutoEF tool is used as an optional
decision support tool.
The AutoEF tool is derived from a 2D speckle tracking algorithm,
which tracks and calculates the myocardial tissue deformation
based on feature tracking on 2D grey scale loops.
AutoEF is performed on either one or both apical 4-chamber or
2-chamber views, in any order.
The result is presented as Ejection Fraction value, calculated by
Simpson MOD for each view and MOD Bi-plane Ejection
Fraction for the whole LV. All values are stored to the worksheet
when approved.
Acquisition
1. Create an exam, connect the ECG device and make sure to
obtain a stable ECG trace.
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