Imaging of gall bladder by endoscopic ultrasound

Table 1 Imaging of gall bladder from three stations

Station	Home base structure	Main position where gall bladder is seen	Part of biliary tract seen on clockwise rotation	Part of biliary tract seen on anti-clockwise rotation
Station - 1: OG junction	Joining of right branch of portal vein with left branch of portal vein	Beyond the curving part of portal vein between 6-8 o’clock position	Upper 1/3rd of CBD	Neck of Gall Bladder, Fundus
Station - 2: Antrum of stomach/duodenal bulb	Portal vein, superior mesenteric vein	Between 2-4 o’clock position	Lower 1/3rd of CBD	Upper 1/3rd of CBD, neck of Gall Bladder and Fundus, left and right hepatic duct union
Station - 3: Descending duodenum	Superior mesenteric vein	Between 9-11 o’clock position	Pancreatic duct	Middle and upper 1/3rd of CBD, neck of gall bladder and fundus, left and right hepatic duct union

CBD: Common bile duct.