On-Site GI Screening

Correctional Diagnostic Imaging, Inc., provides On-site GI Screening for inmates who experience symptoms that may suggest a gastrointestinal problem. Our non-fluoroscopic system of radiographic overheads can detect most abnormalities. However, motility (reflux) cannot be demonstrated.

Our On-site GI Screening procedure will examine the esophagus, stomach and first part of the small intestine (also known as the duodenum) by using a liquid contrast material called Barium Sulfate which the inmate will drink. Additionally, patients are asked to swallow baking-soda crystals to create gas and further improve the images; this procedure has the modified name of "air-contrast" or "double-contrast upper GI."

The GI Screening procedure is done to observe digestive function or to detect abnormalities such as ulcers, tumors or inflammation of the esophagus, stomach and duodenum. Patients who undergo this procedure are usually those who have difficulty swallowing, are complaining of abdominal pain or have unexplained vomiting, severe indigestion or blood in the stool (indicating internal GI bleeding).



  • Upper gastrointestinal tract radiography is safe, and the results usually lead to an accurate analysis of the esophagus, stomach and duodenum.
  • Exposure to radiation is kept to a minimum.
  • On-site screening is a cost efficient procedure.
  • The examination is usually completed within 20 minutes.
  • Screening can be performed at any correctional facility that has stationary X-Ray equipment.
  • This is an extremely safe, noninvasive procedure.


  • Some patients may be allergic to the flavoring added to some brands of barium. The technologist will question the patient prior to the procedure to determine possible allergic reactions to chocolate, certain berries or citrus fruit.
  • There is a slight chance that some barium could be retained, leading to a blockage of the digestive system. Therefore, patients who have an obstruction in the gastrointestinal tract should not undergo this examination. The most common side effect, if any, is temporary constipation.