Fig. 4
![Fig. 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12947-022-00285-2/MediaObjects/12947_2022_285_Fig4_HTML.png)
Prenatal and postpartum images of the subaortic LBCV. A Three-dimensional high-definition flow render mode and STIC are used to show the subaortic LBCV in a fetus. B Cervical aortic arch corresponds to the level of the collarbone. C Postpartum CTA showing that the subaortic LBCV, which was consistent with the prenatal image. D Structural presentation of subaortic LBCV. LBCV, left brachiocephalic vein; RAA, right aortic arch; PA, pulmonary artery; SVC, superior vena cava; DA, ductus arteriosus; DAO, descending aorta; LBCV, left brachiocephalic vein; L, left; R, right; A, abdominal; P, spinal