Table 4 Isthmus data.
From: Ultrasound-based incidence of coarctation of the aorta in true and false positive fetuses
Variables | Positive | False-positive | P |
|---|---|---|---|
Isthmus (3VTV)/DAO diameter | 0.37–3.57 (0.56 ± 0.47) | 0.38–0.84 (0.59 ± 0.09) | 0.63 |
Isthmus (SV)/DAO diameter | 0.31–0.63 (0.44 ± 0.08) | 0.36–0.81 (0.54 ± 0.09) | < 0.001 |
Isthmus velocity PSV (Total) (cm/s) | 37.82-110.51 (71.42 ± 20.28) | 29.38-108.31 (78.29 ± 15.53 | 0.03 |
Isthmus VTI (cm) | 5.11–22.3 (11.29 ± 3.85) | 5.61-18 (11.88 ± 2.72) | 0.24 |
Isthmus flow volume (ml/min) | 5.21-132.97 (41.98 ± 28.99) | 19.97–165.90 (68.65 ± 32.48) | < 0.001 |
Isthmus flow volume/weight (ml/min/g) | 0.01–0.09 (0.04 ± 0.02) | 0.01–2.08 (0.06, 0.03) | 0.18 |
Isthmus flow volume/LCO | 0.07–0.49 (0.25 ± 0.11) | 0.09–0.69 (0.33 ± 0.12) | < 0.001 |
Isthmus flow volume/CCO | 0.02–0.19 (0.08 ± 0.03) | 0.02–0.32 (0.12 ± 0.05) | < 0.001 |
Isthmus flow/DA flow volume | 0.05–0.58 (0.18 ± 0.11) | 0.08–0.87 (0.31 ± 0.15) | < 0.001 |
Isthmus flow/AO flow | 0.07–0.49 (0.25 ± 0.11) | 0.09–0.69 (0.33 ± 0.12) | < 0.001 |
Isthmus flow volume/DAO flow volume | 0.04–0.38 (0.15 ± 0.07) | 0.06–0.78 (0.23 ± 0.10) | < 0.001 |
Isthmus flow volume/BA flow volume | 0.10–4.69 (0.98 ± 0.81) | 0.16–6.97 (1.17, 0.91) | 0.02 |
Isthmus flow volume/LCCA flow volume | 0.26–3.53 (1.21 ± 0.84) | 0.25–7.95 (1.74, 1.25) | < 0.001 |
Isthmus flow volume/LSA flow volume | 0.28–5.88 (1.12, 1.31) | 0.37–12.83 (1.84, 1.0) | 0.03 |
Isthmus systolic velocity (cm/s) | 24.64-109.55 (72.46 ± 20.89) | 29.42-110.45 (80.62 ± 15.92) | 0.01 |
Isthmus systolic VTI (cm) | 1.78–16.56 (7.17 ± 2.89) | 1.47–17.63 (8.24 ± 2.27) | 0.02 |
Isthmus systolic flow volume (ml/min) | 3.13–91.14 (23.19,24.47) | 8.65-109.21 (47.53 ± 22.87) | < 0.001 |
Isthmus systolic flow volume/weight (ml/min/g) | 0.004-006 (0.02 ± 0.01) | 0.004–1.39 (0.04, 0.02) | 0.15 |
Isthmus diastolic velocity (cm/s) | 17.21–66.12 (29.69 ± 9.61) | 8.9-48.93 (25.94 ± 7.28) | 0.01 |
Isthmus diastolic VTI (cm) | 2.38–10.17 (4.40 ± 1.89) | 1.2–8.37 (4.03 ± 1.24) | 0.21 |
Isthmus diastolic flow volume (ml/min) | 2.14–39.53 (8.26, 8.03) | 4.92–64.85 (23.31 ± 12.48) | 0.29 |
Isthmus diastolic flow/weight (ml/min/g) | 0.01–0.03 (0.01 ± 0.004) | 0.004–0.78 (0.02, 0.01) | < 0.001 |
Isthmus diastolic VTI/systolic VTI | 0.31–5.03 (0.61, 0.40) | 0.17–3.13 (0.49, 0.20) | 0.01 |
Isthmus diastolic VTI/isthmus total VTI | 0.24–1.04 (0.42 ± 0.15) | 0.15–1.14 (0.34 ± 0.11) | 0.01 |
