Skip to main content

Table 2 Comparison of CMR-FT derived strain parameters obtained by observers in six mice (72 measures for longitudinal and 36 measures for circumferential and radial strain respectively)

From: Cardiovascular magnetic resonance feature tracking in small animals – a preliminary study on reproducibility and sample size calculation

  Measurements obtained by two observers
(inter-observer level)
  First observer Second observer
EllLAX (%) −10.32 ± 5.47 −11.97 ± 6.36
EccSAX (%) −9.60 ± 3.68 −11.97 ± 5.97
ErrSAX (%) 12.59 ± 6.78 12.64 ± 7.23
  Measurements obtained by one observer
(intra-observer level)
  First measurement Second measurement
EllLAX (%) −10.32 ± 5.47 −11.57 ± 6.84
EccSAX (%) −9.60 ± 3.68 −8.48 ± 6.50
ErrSAX (%) 12.59 ± 6.78 10.32 ± 7.88
  1. Results are expressed as mean ± standard deviation. Ell LAX left ventricular long-axis longitudinal strain, Ecc SAX left ventricular short-axis circumferential strain, Err SAX left ventricular short-axis radial strain