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Table 4 Interobserver variability for flow measurements using static 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 −17 ± 66 (−2 ± 11%) −43 ± 55 (−5 ± 7%) 98 ± 107 (15 ± 17%) 142 ± 125 (21 ± 17%)
Descending aorta MOG −13 ± 64 (−2 ± 8%) −85 ± 88 (−10 ± 9%) 63 ± 114 (9 ± 14%) 148 ± 152 (20 ± 16%)
Umbilical vein DUS 4 ± 66 (2 ± 16%) −30 ± 69 (−9 ± 23%) 24 ± 83 (6 ± 19%) 53 ± 61 (15 ± 20%)
Umbilical vein MOG 17 ± 86 (2 ± 22%) 7 ± 88 (2 ± 21%) 45 ± 88 (13 ± 24%) 38 ± 64 (11 ± 19%)
  1. DUS Doppler ultrasound, MOG Metric Optimized Gating