Fig. 2

Coronal CT images and three-dimensional reconstructed images of the type I Heidelberg triangle. A Coronal CT images of the type I Heidelberg triangle, characterized by the absence of any named vessel crossing the interior of the Heidelberg triangle, accounted for 53.8% of reconstructed patients. The blue area indicates the boundary vessels of the Heidelberg triangle, and the white arrowhead points to vessels around the Heidelberg triangle. B The three-dimensional reconstructed image of the type I Heidelberg triangle is shown. The black arrowhead points to vessels around the Heidelberg triangle. Veins are depicted in blue, while arteries are represented in red. Abbreviations: CA, celiac axis; CHA, common hepatic artery; SMA, superior mesenteric artery; SPA, splenic artery; GDA, gastroduodenal artery; IPDA, inferior pancreaticoduodenal artery; J1A, first jejunal artery; MCA, middle colic artery; PV, portal vein; SMV, superior mesenteric vein; LGV, left gastric vein; SPV, splenic vein; IMV, inferior mesenteric vein; J1V, first jejunal vein