Table 2 Difference in peak myocardial velocities between different ROI lengths according to gestational age (GA) group
ROI length (mm) | ||||
|---|---|---|---|---|
3 | 4 | 6 | 8 | |
Δ Sm (%) | ||||
GA I | −3.49 (14) | −9.27 (19) | ||
GA II | −1.57 (7) | −1.04 (11) | −8.19 (16) | |
GA III | −2.86 (9) | −4.60 (17) | −9.24 (16) | −15.79 (16) |
Δ Em (%) | ||||
GA I | −1.18 (9) | −6.27 (10) | ||
GA II | −0.11 (7) | −0.70 (11) | −1.93 (20) | |
GA III | −3.16 (14) | −5.98 (18) | −8.46 (27) | −13.49 (31) |
Δ Am (%) | ||||
GA I | −2.34 (6) | −8.62 (9) | ||
GA II | −4.78 (8) | −8.71 (16) | −13.66 (16) | |
GA III | −2.11 (6) | −5.22 (6) | −7.74 (14) | −9.52 (20) |