Skip to main content

Table 3 Reproducibility: inter- and intra-rater reliability

From: Diaphragm assessment by two dimensional speckle tracking imaging in normal subjects

Variable

ICC (95 % CI)

R2

R2 p-value

Coefficient of repeatability (%)

Inter-rater

Thickening fraction

0.95 (0.78–0.99)

0.80

<0.001

8.0

Caudal displacement

0.97 (0.79–0.98)

0.90

<0.001

14.5

Longitudinal strain

0.90 (0.61–0.98)

0.70

0.004

24.3

Intra-rater

Thickening fraction

0.98 (0.83–0.99)

0.94

<0.001

14.9

Caudal displacement

0.88 (0.47–0.97)

0.72

<0.002

33.6

Longitudinal strain

0.96 (0.88–0.99)

0.91

<0.001

19.4

  1. Abbreviations: ICC, Interclass correlation coefficient; 95 % CI, 95 % confidence interval, R2, Pearson’s correlation coefficient