Abstract
High-density contrast media have been used in recent years for upper gastrointestinal tract X-ray examinations, resulting in an improvement of visualization. Through contiguous operation and remote control of the direct X-ray examination, we have evaluated the change in visualization obtained by the use of high-density contrast media. For the remote control examination, we have compared the visualization ability with high-density contrast media between the conventional method and the new standard method. In addition, we have reviewed the difference in visualization ability between 180 and 200W/V % for the new standard method. Under eithercontiguous operation or remote control, no increase of dyscrasic shadow was noted. After adoption of the new standard method for the remote control direct X-ray examination, an improvement of visualization was achieved for the body and upper part of the stomach. However, the contrast media tended to debouch rapidly from the stomach into the small intestine, and the quantity of air tended to decrease. A comparison between 180 and 200W/V% for the new standard method showed that 200W/V% was slightly superior in visualization of the body and upper part of the stomach.
