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Table 4 Intra- and inter-observer variability comparison

From: Realization of fully automated quantification of left ventricular volumes and systolic function using transthoracic 3D echocardiography

Variability (%) Manual 3DE Automated 3DE with
manual adjustment
Automated 3DE without
manual adjustment
EDV ESV EF EDV ESV EF EDV ESV EF
Intra-observer 6 ± 4 9 ± 7 8 ± 5 5 ± 4 6 ± 5 6 ± 5 5 ± 4 6 ± 4 6 ± 5
Inter-observer 8 ± 5 10 ± 7 7 ± 3 5 ± 4 8 ± 5 7 ± 4 5 ± 4 8 ± 5 7 ± 4
  1. 3DE 3-dimensional echocardiography, EDV end-diastolic volume, ESV end-systolic volume, EF ejection fraction