Table 4.

Bland–Altman bias and 95% limits of agreement comparing measurements on the outer edge of the Doppler envelope with those at the middle of the Doppler envelope

	Algorithm vs. expert consensus	Expert 1 vs. other experts	Expert 2 vs. other experts	Expert 3 vs. other experts	Expert 1 vs. algorithm	Expert 2 vs. algorithm	Expert 3 vs. algorithm
Septal s′
Middle	0.16 ± 0.84	0.25 ± 1.06	−0.62 ± 0.78	0.36 ± 1.41	0.00 ± 0.84	0.57 ± 0.86	−0.08 ± 1.50
Outer edge	−0.50 ± 1.29	0.16 ± 0.99	0.04 ± 0.48	−0.21 ± 0.91	−0.61 ± 1.61	−0.53 ± 1.30	−0.37 ± 1.27
Septal e′
Middle	0.10 ± 0.79	0.11 ± 1.22	−0.76 ± 1.39	0.64 ± 1.02	0.03 ± 1.12	0.60 ± 1.09	−0.33 ± 1.17
Outer edge	−0.23 ± 1.19	−0.10 ± 1.16	0.10 ± 1.58	0.00 ± 1.46	−0.17 ± 1.47	−0.30 ± 1.46	−0.23 ± 1.62
Septal a′
Middle	0.35 ± 1.04	0.10 ± 1.03	−0.76 ± 1.03	0.65 ± 1.22	0.28 ± 1.10	0.84 ± 1.29	−0.09 ± 1.37
Outer edge	−0.12 ± 1.32	−0.29 ± 1.27	0.23 ± 1.28	0.06 ± 1.80	0.07 ± 1.65	−0.27 ± 1.32	0.16 ± 1.91

Bland–Altman bias and 95% limits of agreement comparing manual and automated peak tissue Doppler velocity measurements at the septal annulus using different measurement conventions: middle of the Doppler envelope and outer edge of the Doppler envelope