Fig. 2

The definition of injured hepatic duct and location of hepatic artery pseudoaneurysm. a The central bile duct was defined as the region between the secondary branches of the right and left hepatic ducts and the common hepatic duct at the upper edge of the pancreas. The peripheral bile duct was defined as the region proximal to the central one. b The central hepatic artery was defined as comprising the common hepatic artery, the proper hepatic artery, and the left, middle, right, right anterior, and right posterior hepatic arteries. The peripheral hepatic artery was defined as being proximal to the central artery