Gastric emptying measured by ultrasonography

Subject headings gastric emptying; stomach/ ultrasonography; stomach/pathophysiology A number of different methods have been used to estimate gastric emptying in humans, and all have their advantages and disadvantages. The method of choice will depend on whether solid or liquid meals are studied, the level of precision required, the degree of invasiveness that the subject or patient will tolerate, ethical considerations, and not at least the facilities available. Scintigraphy, with appropriate labelling of the test meal components and appropriate corrections applied, is considered so far the gold standard for measurement of gastric empty ing. However, its application is limited by the need to restrict exposure to ion ising radiation. Other