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. 2015 Apr 27;4(4):e001844. doi: 10.1161/JAHA.115.001844

Table 4.

Reproducibility of the LA Analysis by Tissue‐Tracking CMR

Intra‐Observer Inter‐Observer
Bias Limits of Agreement ICC Bias Limits of Agreement ICC
LA Vmax, mL/m2 −0.57 4.50 0.96 −1.25 4.08 0.99
LA VpreA, mL/m2 −0.93 3.42 0.97 −0.34 4.75 0.99
LA Vmin, mL/m2 −0.83 3.68 0.98 −1.61 4.31 0.98
LA total EF, % 1.94 7.75 0.94 1.67 4.78 0.89
LA passive EF, % 0.82 5.41 0.98 −0.92 7.81 0.92
LA active EF, % 2.47 10.78 0.88 3.11 0.51 0.90
LA Smax, % −0.75 3.19 0.94 1.26 2.88 0.90
LA SpreA, % −1.20 2.99 0.96 1.64 2.17 0.98
LA SRs, 1/s 0.10 0.43 0.91 0.11 0.18 0.95
LA SRe, 1/s −0.04 0.24 0.98 −0.15 0.23 0.94
LA SRa, 1/s −0.05 0.28 0.99 −0.12 0.27 0.97

CMR indicates cardiac magnetic resonance; EF, emptying fraction; ICC, intraclass correlation coefficient; LA, left atrial; Smax, maximum strain; SpreA, pre‐atrial contraction strain; SRa, strain rate at atrial contraction; SRe, strain rate at LV early diastole; SRs, maximum strain rate; Vmax, maximum indexed volume; Vmin, minimum indexed volume; VpreA, pre‐atrial contraction indexed volume.