BMC Cardiovascular Disorders

Table 4 Intra- and inter-observer variability (N = 20)

From: Dissecting myocardial mechanics in patients with severe aortic stenosis: 2-dimensional vs 3-dimensional-speckle tracking echocardiography

Measurement	Intra-observer		Inter-observer
Measurement	Difference	ICC	Difference	ICC
2D
GLS (%)	−0.08 ± 0.17	0.93	0.40 ± 0.95	0.88
GRS (%)	−0.12 ± 1.17	0.85	−0.15 ± 4.70	0.86
GCS (%)	−0.33 ± 2.59	0.92	1.01 ± 2.88	0.90
Twist (°)	0.23 ± 2.69	0.86	0.06 ± 1.92	0.93
3D
GLS (%)	0.40 ± 0.78	0.95	−0.08 ± 1.46	0.84
GRS (%)	0.85 ± 0.89	0.87	1.38 ± 3.81	0.82
GCS (%)	0.25 ± 3.72	0.90	0.67 ± 3.48	0.89
Twist (°)	−0.07 ± 0.76	0.87	0.01 ± 0.65	0.89

Abbreviations: ICC Intraclass correlation coefficient, 2D 2-dimensional, GLS Global longitudinal strain, GCS Global circumferential strain, GRS Global radial strain, 3D 3-dimensional

Back to article page

ISSN: 1471-2261

Contact us

Submission enquiries: bmccardiovasculardisorders@biomedcentral.com
General enquiries: ORSupport@springernature.com