Table 1

Left Ventricular 2-Dimensional Longitudinal Strain and SRs in Subjects at Different Sites

ParameterPeak Systolic Strain (%)Peak Systolic SR (1/s)Early Diastolic (E) SR (1/s)Late Diastolic (A) SR (1/s)
Mean ± SEM−18.6 ± 0.1−1.10 ± 0.011.55 ± 0.011.02 ± 0.01
Lower 95% limit−18.5−1.091.541.01
Upper 95% limit−18.7−1.111.561.03

Selected for tracking quality (TQ) <3.

SR = strain rate.