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. 2017 Nov 30;34(5):725–734. doi: 10.1007/s10554-017-1285-x

Table 2.

LV and RV ε and SR

Parameter Mean ± SD p value
NH&PI CC
LV longitudinal
 ε (%) − 19 ± 2 − 19 ± 2 0.897
 Time to peak ε (s) 0.38 ± 0.03 0.37 ± 0.03 0.325
 SRS (S−1) − 0.93 ± 0.09 − 0.95 ± 0.1 0.549
 SRE (S−1) 1.29 ± 0.18 1.36 ± 0.18 0.229
 SRA (S−1) 0.67 ± 0.16 0.62 ± 0.14 0.294
LV circumferential
 ε (%) − 20 ± 3 − 21 ± 2 0.094
 Time to peak ε (s) 0.38 ± 0.03 0.37 ± 0.03 0.785
 SRS (S−1) − 1.09 ± 0.2 − 1.17 ± 0.12 0.154
 SRE (S−1) 1.52 ± 0.35 1.8 ± 0.37 0.023*
 SRA (S−1) 0.43 ± 0.13 0.45 ± 0.09 0.659
 ε mid (%) − 20 ± 3 − 21 ± 2 0.029*
 Mid SRS (S−1) − 1.11 ± 0.21 − 1.18 ± 0.16 0.261
 Mid SRE (S−1) 1.44 ± 0.34 1.7 ± 0.38 0.019*
 Mid SRA (S−1) 0.51 ± 0.12 0.5 ± 0.14 0.973
 ε basal (%) − 20 ± 4 − 21 ± 3 0.347
 Basal SRS (S−1) − 1.14 ± 0.2 − 1.21 ± 0.14 0.222
 Basal SRE (S−1) 1.69 ± 0.51 1.91 ± 0.45 0.153
 Basal SRA (S−1) 0.4 ± 0.21 0.39 ± 0.09 0.703
LV radial
 ε (%) 43 ± 14 50 ± 12 0.112
 Time to peak ε (s) 0.41 ± 0.04 0.40 ± 0.5 0.697
 SRS (S−1) 1.57 ± 0.31 1.66 ± 0.34 0.371
 SRE (S−1) − 1.79 ± 0.34 − 2.1 ± 0.43 0.013*
 SRA (S−1) − 1.01 ± 0.56 − 0.94 ± 0.33 0.87
 ε mid (%) 43 ± 18 51 ± 16 0.13
 Mid SRS (S−1) 1.71 ± 0.47 1.68 ± 0.37 0.825
 Mid SRE (S−1) − 1.99 ± 0.57 − 2.33 ± 0.81 0.122
 Mid SRA (S−1) − 1.12 ± 0.66 − 0.96 ± 0.45 0.367
 ε basal (%) 43 ± 4 58 ± 3 0.195
 Basal SRS (S−1) 1.81 ± 0.46 1.93 ± 0.55 0.434
 Basal SRE (S−1) − 1.6 ± 0.53 − 1.87 ± 0.53 0.099
 Basal SRA (S−1) − 0.91 ± 0.57 − 0.93 ± 0.4 0.917
LV rotation
 Apical rotation (°) 7.1 ± 3.8 9.3 ± 3.6 0.054
 Basal rotation (°) − 6.9 ± 2.6 − 6.7 ± 3.5 0.873
 Twist (°) 13.4 ± 4.6 15.6 ± 5.1 0.159
RV longitudinal
 ε (%) − 27 ± 3 − 27 ± 4 0.857
 Time to peak ε (s) 0.39 ± 0.03 0.38 ± 0.03 0.252
 SRS (S−1) − 1.24 ± 0.2 − 1.31 ± 0.21 0.266
 SRE (S−1) 1.60 ± 0.35 1.56 ± 0.36 0.771
 SRA (S−1) 0.82 ± 0.26 0.84 ± 0.28 0.642

LV left ventricle, RV right ventricle, ε strain, SR strain rate, NH&PI Native Hawaiian & Pacific Islanders, CC caucasian controls

*p < 0.05 NH&PI versus CC