Fig. 1From: Evaluation of transabdominal ultrasound after oral administration of an echoic cellulose-based gastric ultrasound contrast agent for gastric cancerDefinition of Groups S and U. a Visualization of the cardia (arrows) between the liver and aorta is acceptable. b Visualization of the pylorus (arrows) between the liver and pancreas is also acceptable. c The cardia between the liver and aorta is not acceptably visualized. d The pylorus between the liver and pancreasis is not acceptably visualized. Visualization of the cardia and pylorus is acceptable in Group S, but not in Group U. An, antrum; P-head, pancreatic headBack to article page