[An analysis of the diagnostic information derived from screening as against films during radiological examination of the stomach (author's transl)]. / Analyse des diagnostischen Informationswertes von Aufnahmen und Durchleuchtung bei der Röntgenuntersuchung des Magens.

The value of screening procedures (with image intensifiers and television monitor) was compared with films during the radiological examination of the stomach, using a double contrast method. In one experiment, the diagnostic accuracy of experienced radiologists using screening only was compared with standardised films. There was a definite improvement using films. The reason for this was not the difference in the technical excellence of the images, but depended on the cognitive processes which lead the doctor to a diagnosis. For this purpose, static pictures provide a better basis than dynamic, rapidly changing and brief views seen during screening. The results lead to certain considerations concerning the methods for the radiological examination of the stomach.