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Table 3 Interobserver variability for flow measurements using time-resolved delineations. Data are presented as mean interobserver differences ± SD in ml/min and percent of average flow

From: Quantification of blood flow in the fetus with cardiovascular magnetic resonance imaging using Doppler ultrasound gating: validation against metric optimized gating

Vessel Observer 1 vs 2 Observer 1 vs 3 Observer 1 vs 4 Observer 3 vs 4
Descending aorta DUS 37 ± 65 (5 ± 8%) 0 ± 64 (0 ± 9%) 175 ± 87 (26 ± 9%) 175 ± 80 (26 ± 8%)
Descending aorta MOG 35 ± 62 (4 ± 8%) −3 ± 80 (0 ± 9%) 198 ± 99 (28 ± 10%) 201 ± 111 (28 ± 10%)
Umbilical vein DUS 16 ± 98 (4 ± 20%) 2 ± 84 (−2 ± 23%) 69 ± 71 (17 ± 14%) 67 ± 43 (19 ± 14%)
Umbilical vein MOG 26 ± 71 (4 ± 21%) −9 ± 48 (−3 ± 13%) 75 ± 61 (18 ± 19%) 85 ± 71 (20 ± 15%)
  1. DUS Doppler ultrasound, MOG Metric Optimized Gating