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Table 3 Difference in percentage for time intervals between different ROI lengths compared to the reference ROI

From: Automated analysis of color tissue Doppler velocity recordings of the fetal myocardium using a new algorithm

 

ROI length (mm)

Atrial contraction

Pre-ejection

Ventricular ejection

Post-ejection

GA I

3

−1.04 (5)

0.92 (5)

0.00 (2)

1.94 (7)

4

−3.18 (5)

0.59 (9)

0.00 (3)

1.55 (7)

GA II

3

0.00 (6)

0.00 (4)

0.00 (2)

0.88 (7)

4

1.13 (8)

1.25 (4)

0.26 (2)

0.54 (8)

6

−1.43 (7)

0.97 (6)

−0.30 (2)

1.97 (9)

GA III

3

−1.75 (7)

1.09 (8)

−0.02 (4)

1.69 (4)

4

−0.06 (6)

−0.21 (9)

0.10 (4)

1.83 (6)

6

0.07 (11)

0.67 (10)

0.14 (4)

2.59 (8)

8

−1.09 (9)

0.71 (13)

0.20 (3)

2.57 (6)

  1. Data are presented as median difference (Δ) % (interquartile range) compared to the reference ROI of 2×2 mm. ROI = region of interest. GA I – gestational age group I, GA II – gestational age group II, GA III – gestational age group III