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EP12.14: The value of AO/SVC ratio in the 3‐V view and Y‐sign appearance in the descending aorta coronary view in predicting fetus coarctation of aorta
Author(s) -
Han J.,
Zhang L.,
Wu Q.,
Wang L.,
Wang J.,
Xuan Y.,
Li L.,
Li X.,
Ma X.,
Zhang T.,
Sun F.,
Sun J.
Publication year - 2019
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1002/uog.21348
Subject(s) - medicine , aorta , cardiology , descending aorta , aortic arch , coarctation of the aorta , bicuspid aortic valve , stenosis , fetus , aortic valve , pregnancy , biology , genetics
Methods 21 cases of which prenatal ultrasound suspected aortic arch narrow or stenosis were followed up (except for complex deformities). Two groups (abnormal group and normal group) were divided according to postnatal examinations. Compared the differences of the performances and parameters between the two groups by related measurement parameters, including first diagnostic gestational age (GA), the proportion of left and right ventricular in four chambers view (LV/RV), pulmonary artery/aortic ratio (PA/AO) and AO/SVC ratio in 3-V view, the “Y” sign be imaged and inner diameter of the aortic isthmus in descending aorta coronary view. Results 10 cases were abnormal,6 cases confirmed CoA postnatally, 4 cases selected induction of labor, 11 cases were normal in aortic arch;GAs first diagnosed were 25.4±3.47 weeks in CoA group and 29.27±3.07 weeks in normal group (P<0.05); 8 cases (8/10) in CoA group when DAO≤DSVC while 1 case (1/11) in normal group, (P<0.05); in the descending aorta coronary view , Y sign can be imaged in 2cases (2/8) in CoA group and 10 cases (10/11) in normal group (P<0.05), the DAI>1.5mm in normal group and<1.5mm in CoA fetuses; PA/AO were 1.81±0.45 in CoA group and 1.55±0.25 in normal groups, (P>0.05) Conclusion: In our study, the prenatal diagnostic accuracy of CoA by echocardiography was less than 50% according to the dominant right heart, arrowed inner diameter of aortic artery and distortional aortic arch. The accuracy of prenatal diagnosis for CoA might be improved when the first diagnosed GA in 2rd trimester, DAO≤DSVC in 3-VT view, Y sign appeared difficultly or DAI<1.5mm in the descending aorta coronary view Figure1 normal group GA26W,DAO>DSVC Figure2 abnormal group GA26w, DAO≤DSVC Figure3 normal group GA29W, DAI>1.5mm Figure4 abnormal group GA26w, DAI <1.5mm 1 2 3 4 svc