Table 5.

Inter- and intra-observer variability of first-perfusion and tissue tracking

	Intra-observer (n = 30)	95% CI	Inter-observer (n = 30)	95% CI
	ICC		ICC
Upslope	0.979	0.957–0.990	0.977	0.952–0.989
TTM (s)	0.987	0.973–0.994	0.983	0.964–0.992
Max SI	0.983	0.965–0.992	0.982	0.962–0.992
PS (%)
Radial	0.952	0.899–0.977	0.920	0.833–0.962
Circumferential	0.934	0.862–0.968	0.915	0.823–0.960
Longitudinal	0.864	0.717–0.935	0.849	0.316–0.948
PSSR (1/s)
Radial	0.938	0.871–0.970	0.925	0.843–0.964
Circumferential	0.866	0.720–0.936	0.847	0.596–0.934
Longitudinal	0.828	0.641–0.918	0.777	0.285–0.913
PDSR (1/s)
Radial	0.936	0.867–0.969	0.905	0.799–0.955
Circumferential	0.881	0.751–0.943	0.871	0.732–0.938
Longitudinal	0.883	0.756–0.944	0.824	0.633–0.916

ICC, intraclass correlation coefficient

All p < 0.001