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Table 4 Manual inter-observer agreement (\(\mathrm{n}=37\)) of left atrial (LA) derived parameters for end-diastolic volume (EDV), end-systolic volume (ESV), ejection fraction (EF) and global longitudinal strain (GLS)

From: Automated left atrial time-resolved segmentation in MRI long-axis cine images using active contours

 

Manual measures

SO measures

Error measures

ICC (95% CI)

R

CoV (%)

LA EDV (ml)

51 ± 38

51 ± 37

0.14 ± 4.8

0.99 (0.99–1.00)

0.99

9.1

LA ESV (ml)

100 ± 39

97 ± 38

3.2 ± 8.7

0.97 (0.95–0.99)

0.98

7.4

LA EF (%)

52 ± 15

50 ± 15

1.8 ± 4.3

0.95 (0.91–0.98)

0.96

9.5

LA GLS (%)

33 ± 13

34 ± 14

− 0.60 ± 3.8

0.96 (0.93–0.98)

0.96

9.4

  1. The mean ± standard deviation are reported
  2. SO second observer, ICC intra-class correlation coefficient, CI confidence interval, R correlation value, CoV coefficient of variation