The Japanese-style double-contrast examination of the stomach

Abstract

Western radiologists are using the Japanese-style double-contrast examination of the stomach with increasing frequency. Extensive experience now indicates that the double-contrast technique greatly increases the accuracy of the radiologic examination of the stomach. Lesions characterized by small irregularities in the mucosal surface of the stomach, such as superficial carcinomas, small or shallow ulcers, gastric erosions, and ulcer scars, are particularly apt to be detected only by double-contrast technique. The double-contrast study also increases the detectability of lesions in the proximal stomach, where compression and palpation are difficult to apply effectively.

Evaluation of three effervescent agents for double-contrast upper gastrointestinal radiography

“…A variety of methods have been advocated including encouraging the patient to swallow air spontaneously [3], placing a needle hole in the drinking straw [4], passing a nasogastric tube, administrating carbonated or "bubbly" barium [5,6], and preceding the barium by a carbonated solution such as tonic water. Most widely used, however, are a variety of effervescent agents in the form of powders, granules, or tablets [7][8][9][10][11][12][13]. Unfortunately, many of these effervescent agents are not currently marketed in the United States.…”

The diagnostic and cost effectiveness of overhead projections in the examination of the stomach and duodenum

“…The examination is therefore more nearly a biphasic technique, similar to those proposed by Gelfand and Op den Orth [4,6, 10]. Routine double-contrast spot-films of the body and antrum included supine left posterior oblique (LPO), supine posteroanterior (PA), supine right posterior (RPO), and prone right anterior oblique (RAO).…”