[An improved method of examining the stomach by thincoating double-contrast technique (author's transl)].

Double contrast techniques represent a considerable advance in improving diagnostic accuracy during examinations of the stomach. This technique was developed primarily by Japanese workers (H. Shirakabe and others) for the diagnosis of early carcinoma of the stomach and has reached a high degree of excellence. A particular technique of this method is the use of thin coating of the gastric mucosa. This paper deals with the principal of this examination and its use and is illustrated by a number of examples.