Fig. 5
From: Abdominal imaging findings in adult patients with Fontan circulation
Vessel evaluation in post-Fontan patients. a-c A 31-year-old woman with previous pulmonary atresia with intact ventricular septum. a Coronal CT shows indirect diversion of both SVC and IVC to pulmonary arteries via the right atrium (asterisk), corresponding with atriopulmonary anastomosis. b, c Spectral Doppler US examination. b Middle hepatic vein shows preservation of hepatopetal blood flow (arrows). c Right portal vein shows heterogeneously coarse hepatopetal flow. d-f A 21-year-old woman with previous left atrial isomerism with pulmonary atresia. d Coronal CT shows direct diversion of both the SVC and IVC to pulmonary arteries, corresponding with total cavopulmonary anastomosis. Situs inversus is also noted. e, f Spectral Doppler US examination. e Left-side hepatic vein demonstrates disappearance of hepatopetal blood flow. f Right-side portal vein demonstrates relatively homogeneous hepatopetal flow. g-i A 33-year-old woman with previous hypoplastic right ventricle with tricuspid atresia. Coronal (g) and axial (h, i) CT images in the portal venous phases demonstrate intrahepatic venous-venous collateral formation (double-lined arrow in g), enlarged hepatic veins (arrowheads in h), and small main portal vein (dotted arrow in i)