Barium radiology of the gastrointestinal tract has had a long history but its survival into the next century will be a challenge. The numbers of barium studies performed has declined in recent decades due to several factors; also, health care reforms in the United States will further impact on the use of barium examinations. The future status of these radiological procedures will change depending on these factors and the organ system being examined; an increased emphasis on functional evaluation of the gastrointestinal tract will also have an effect on the evolving role of barium radiology. We provide a brief historical review of the evolution of barium radiology in the twentieth century, discuss the present and changing status of the various gastrointestinal examinations, and offer our thoughts concerning the potential future of this specialty.
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