Table 2 Summary (mean ± standard deviation) of peak myocardial strain rate results
Systolic | Â | Observer 2, Day 1 | Observer 1, Day 1 | Observer 1, Day 2 |
|---|---|---|---|---|
Peak radial strain rate (%/ms) | Endo | 12 ± 2 | 12 ± 3 | 13 ± 3 |
Mid | 12 ± 3 | 12 ± 3 | 12 ± 2 | |
Epi | 9 ± 2 | 9 ± 3 | 9 ± 2 | |
Global | 11 ± 2 | 10 ± 2 | 11 ± 2 | |
Peak circumferential strain rate (%/ms) | Endo | −6 ± 1 | −7 ± 1 | −7 ± 1 |
Mid | −5 ± < 1 | −5 ± 1 | −5 ± < 1 | |
Epi | −3 ± < 1 | −3 ± < 1 | −3 ± < 1 | |
Global | −5 ± < 1 | −5 ± < 1 | −5 ± < 1 | |
Peak longitudinal strain rate (%/ms) | Endo | −6 ± 2 | −5 ± 1 | −5 ± 2 |
Mid | −5 ± 1 | −5 ± 1 | −5 ± 1 | |
Epi | −4 ± 1 | −4 ± 1 | −5 ± 1 | |
Global | −5 ± 1 | −5 ± 1 | −5 ± 1 | |
Diastolic | Â | Observer 2, Day 1 | Observer 1, Day 1 | Observer 1, Day 2 |
Peak radial strain rate (%/ms) | Endo | −12 ± 3 | −13 ± 4 | −12 ± 4 |
Mid | −12 ± 4 | −12 ± 3 | −12 ± 5 | |
Epi | −9 ± 3 | −8 ± 3 | −8 ± 2 | |
Global | −11 ± 3 | −11 ± 3 | −10 ± 3 | |
Peak circumferential strain rate (%/ms) | Endo | 6 ± 2 | 6 ± 1 | 6 ± 1 |
Mid | 4 ± 1 | 4 ± 1 | 4 ± 1 | |
Epi | 3 ± < 1 | 3 ± 1 | 3 ± 1 | |
Global | 4 ± 1 | 4 ± 1 | 4 ± 1 | |
Peak longitudinal strain rate (%/ms) | Endo | 5 ± 2 | 4 ± 1 | 5 ± 2 |
Mid | 4 ± 1 | 4 ± 1 | 4 ± 2 | |
Epi | 4 ± 1 | 4 ± 1 | 4 ± 2 | |
Global | 4 ± 1 | 4 ± 1 | 4 ± 2 |