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Table 6 Comparison of 3-dimensional left ventricular strains using two different software (4D LV analysis: version 3.1, EchoPAC: version 12.0)

From: The impact of preload on 3-dimensional deformation parameters: principal strain, twist and torsion

  4D LV analysis EchoPAC P value ICC 95% CI
Pre-HD (n = 58)
 Global longitudinal strain (%) −24.57 ± 2.51 −17.10 ± 2.34 <0.001 −0.089 −0.840-0.355
 Global circumferential strain (%) −33.35 ± 3.50 −19.95 ± 2.51 <0.001 0.408 0.000–0.649
 Global radial strain (%) 47.67 ± 4.27 53.45 ± 9.64 <0.001 −0.055 −0.783-0.376
Post-HD (n = 58)
 Global longitudinal strain (%) −21.42 ± 2.15 −15.58 ± 3.21 <0.001 0.116 −0.494-0.477
 Global circumferential strain (%) −30.90 ± 3.22 −17.42 ± 3.71 <0.001 0.570 0.273–0.745
 Global radial strain (%) 42.90 ± 3.61 45.79 ± 11.31 0.045 0.304 −0.176-0.588
  1. ICC intra-class correlation coefficient, CI confidence interval, HD hemodialysis