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Table 4 Intra- and Inter-observer Variabilities for LA Strain Parameters

From: Left atrial reservoir strain combined with E/E' as a better single measure to predict elevated LV filling pressures in patients with coronary artery disease

 

Intra-observer

Inter-observer

LA strain parameters

Variability (%)

Intra-class

correlation coefficient

95% CI

Variability (%)

Intra -class correlation coefficient

95% CI

LASr(%)

7.87 ± 6.77

0.90

0.69–0.97

11.20 ± 5.02

0.90

0.69–0.97

LAScd(%)

10.53 ± 10.08

0.97

0.90–0.99

17.60 ± 12.63

0.93

0.79–0.98

LASct(%)

6.93 ± 3.67

0.87

0.61–0.96

7.53 ± 8.00

0.81

0.43–0.94

  1. For abbreviations see Tables 1 and 2