Outlines,requirements and time allocation Principles of Image Analysis Appearance of the Stomach 10* The radiologist first examines the overall position,shape,and size of the stomach.The gastric fundusabuts the left hemidiaphragm.The cardia hasa midline location,abuttingthe crus ofthe left hemidiaphragm. The stomach curves to the right across the midline,with the distal gastric antrum and duodenum extendingto the right of the spine.There is considerable variation in the size of the stomach,dependingon the amount of barium and effervescent agent administered. Luminal Contour 5 In the barium pool,the contour is demarcated by a smooth edge of barium.With air contrast. the luminal contourappearsasa smooth,continuous barium-coated white line. Barium Pool The pool of high-density barium is the tool the radiologist uses to scrub and coat the mucosal surface. 33 Outlines, requirements and time allocation Principles of Image Analysis Appearance of the Stomach The radiologist first examines the overall position, shape, and size of the stomach. The gastric fundus abuts the left hemidiaphragm. The cardia has a midline location, abutting the crus of the left hemidiaphragm. The stomach curves to the right across the midline, with the distal gastric antrum and duodenum extending to the right of the spine. There is considerable variation in the size of the stomach, depending on the amount of barium and effervescent agent administered. Luminal Contour In the barium pool, the contour is demarcated by a smooth edge of barium. With air contrast, the luminal contour appears as a smooth, continuous barium-coated white line. Barium Pool The pool of high-density barium is the tool the radiologist uses to scrub and coat the mucosal surface. 10’ 5’ 5’