[Differential evacuation activity of the human gastroduodenal complex].

In clinical healthy volunteers (20) the rapid of gastric evacuation of three types of test meals: the gruel with egg protein or butter are investigated by sonography. There are investigated (117): the half-time of evacuation, the area of a diameter of the antrum in the systole and diastole, the amplitude of the contraction and the frequency of it. In healthy volunteers the differentiative evacuation of the three types of the test meals are established.