Effect of Left Ventricular Outflow Tract Obstruction on Left Atrial Mechanics in Hypertrophic Cardiomyopathy

Table 7

Inter- and intraobserver variability.

	Diff. means (±1.96 SD)
	Interobserver	Intraobserver
(mL/m^2)	1.5 (±7.7)	1.5 (±2.6)
(mL/m^2)	0.8 (±8.4)	1.5 (±3.0)
(mL/m^2)	2.6 (±9.8)	1.5 (±5.8)
Longitudinal reservoir strain (%)	1.3 (±5.2)	0.2 (±6.6)
Longitudinal booster strain (%)	0.5 (±3.1)	0.1 (±3.7)
SRs (%/sec)	0.07 (±0.16)	0.01 (±0.18)
SRe (%/sec)	0.02 (±0.18)	0.00 (±0.37)
SRa (%/sec)	0.09 (±0.26)	0.02 (±0.24)

Difference of means ±1.96 SD: bias and limits of agreement derived from Bland-Altman analysis.