General
Stats:
- Description-Contrast
dye (Barium) is used to fill the intestines. X-rays can not penetrate the
contrast dye. With the intestines filled with the dye, abnormalities in
the lining can be detected. A Radiologist and a technician at a x-ray facility
perform the test. The results are interpreted by the Radiologist. The test
takes 30 minutes - 3 hours to perform, depending on which segment is being
examined.
- Discomfort - Minimal
discomfort associated with lying on the x-ray table.
- Results - Within 1-2
days; within 1 hour in emergent situations.
- Risks of Procedure
- Exposure to radiation, particularly during pregnancy. Some types of contrast
dye may block the intestines if not passed in 1 to 2 days.
- Average Cost - $$
- Special Equipment:
Contrast material (barium), X-ray machine, and Fluoroscope.
- Risks/Complications:
Risks associated with radiation, particularly during pregnancy. The barium
may accumulate and block the intestines if it is not removed within a day
or two.
- Other names:
Other names of contrast x-rays of the intestines depend on the segment of
the intestines to be examined. Barium swallow or esophagogram (examined
the esophagus and swallowing); upper gastrointestinal (GI) series (examines
the esophagus, stomach and the first part of the small intestines); small
bowel series, enteroclysis or small bowel enema (examines the small intestines);
barium enema (examines the large intestines or colon).
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Indication for Test
- To evaluate swallowing
problems and identify abnormalities in the esophagus (barium swallow or
esophagogram).
- To detect cancers,
ulcers and other inflammatory conditions in the lining of the esophagus,
stomach, or duodenum (upper GI series).
- To identify abnormalities
of the small intestines such as blockages, tumors and Crohn's disease (enteroclysis
or small bowel series).
- To identify cancer,
polyps, inflammation, and diverticula of the colon and rectum (barium enema
or air contrast barium enema).
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Preparation
- A light meal should
be eaten the evening before the test and nothing by mouth after midnight.
Children should have nothing by mouth 4 hours before the test.
- A laxative or enema
is given on the day before the test to clear the colon for a small bowel
series.
- Clear liquids and
an intestinal purgative are given the day before the test for a barium enema.
- Prior to the procedure,
remove all clothing and wear a hospital gown.
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Procedure
- For an upper GI or
a small bowel series, you drink the contrast. For an enteroclysis, barium
is pumped through a tube that is passed down the nose, through the stomach,
and into the small bowel. For a barium enema, the contrast is given via
an enema.
- You are placed on
a x-ray table for the images to be taken.
- The Radiologist examines
the intestines with a fluoroscope. The Radiologist may push on your abdomen
to better view different segments of the intestines.
- Air may be introduced
into the colon during the barium enema to perform an air contrasted barium
enema. This makes it possible to see small abnormalities of the lining of
the colon.
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After the Procedure
- You may dress and
leave.
- You may be given
a mild laxative to assist in passage of the contrast dye.
- Your stools will
be light-colored and chalky after the test till all of the contrast is passed.
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Factors affecting results
- An incomplete bowel
preparation (presence of food) may affect the x-ray films.
- Movement during the
test and obesity may affect the x-ray films.
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Advantages
- The test gives a
better image of the intestines than a regular (uncontrasted) x-ray
- The test is minimally
invasive.
- The test is less
expensive than endoscopy or a CT scan.
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Disadvantages
- Radiation exposure.
- Further testing might
be needed to clarify the cause of any abnormality identified.
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