Effects of LV foreshorthening on AFI strain

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Figure 8. AFI strain, Post Systolic Index. Operators 1 and 2
Figure 8. AFI strain, Post Systolic Index. Operators 1 and 2

The post systolic index polar map is similar between the 2 operators.
The time to peak longitudinal strain polar map shows greater differences between the 2 operators: compare the yellow and orange segments with increased time to peak maximum strain. The area of the latter is larger for Operator 1.

Figure 9. AFI strain, Time to peak longitudinal strain. Operators 1 and 2
Figure 9. AFI strain, Time to peak longitudinal strain. Operators 1 and 2

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