Fig. 2
From: Identification of fetal cardiac anatomy and hemodynamics: a novel enhanced screening protocol
Sonographic images of a 22-gestational-week fetus diagnosed with TAPVC. In the 4CV, a tubular-like structure was detected between the LA and DAO (a). Gradual rotation of the ultrasound beam; two tiny structures were visualized to drain into the tubular-like structure (b). This was suspected to be TAPVC by screening sonographers under Protocol B, for whom this characteristic sign had been made evident. 4CV, four chamber view; AAO, ascending aorta; DAO, descending aorta; L, left; R, right; LA, left atrium; LV, left ventricle; RA, right atrium; RV, right ventricle; S, spine. The areas indicated by the white arrows depict the tubular-like structure