General
Stats:
- Description- Angiography
of the abdomen is performed by injecting contrast dye into the blood vessels
that supply the organs of the abdomen. By filling the vessels with dye,
they can be identified and abnormalities can be detected. A Radiologist
and x-ray technicians perform the test in a hospital x-ray facility. The
results are interpreted by the Radiologist. The test takes 30-90 minutes
to perform.
- Discomfort - There
is moderate discomfort associated with this test (having an artery punctured,
lying on the x-ray table, some have burning with injection of the dye).
- Results - 1-2 days,
within 1 hour in emergent situations.
- Risks of Procedure
- Exposure to radiation, particularly during pregnancy; reaction to the
contrast dye, including kidney damage; bleeding; perforation of the artery;
injury to the nerves; and blood clots that may form on the catheter and
travel through the bloodstream.
- Average Cost - $$$
- Other names Celiac
and mesenteric arteriography.
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Indication for Test
- Diagnose diseases
of the blood vessels in the small and large intestine such as a narrowing
that could limit blood flow.
- To identify when
a tumor has invaded a blood vessel which would preclude resection of the
tumor.
- To identify the site
of bleeding in the abdomen and possibly stop the bleeding by injecting a
plug or chemical.
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Preparation
- Consume only clear
liquids for six to eight hours before the procedure.
- Remove all clothing
and wear a hospital gown.
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Procedure
- About 30 minutes before
the procedure, patient is given a sedative.
- Your heart rate and
blood pressure are monitored during the test.
- An intravenous line
is placed into your arm to provide fluids and medications necessary for
the test.
- Anesthetic is injected
at the catheter insertion site and a small incision is made in the groin.
- A catheter is inserted
into the major artery in the abdomen and guided to the area to be examined
with the help of a x-ray machine.
- Contrast dye is injected
through the catheter and the Radiologist views the arteries while x-ray
pictures are made for later interpretation
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After the Procedure
- The catheter is removed
and a pressure dressing is applied until bleeding stops.
- You will be instructed
to lie with your legs straight for about four hours. A small sandbag is
usually placed over the incision for a few hours to prevent bleeding.
- You are monitored
for at least four hours, and the puncture site will be examined for signs
of bleeding or swelling.
- If there is no bleeding
after 4 hours, outpatients can leave but must be driven home.
- Before you go home,
you are taught how to apply pressure to stop any bleeding that may occur
later. Any bleeding that lasts more than a few minutes requires emergency
medical attention.
- Activity should be
limited for several days, particularly in the leg in which the test was
performed.
- After the test, you
should drink extra fluid to aid in flushing the dye out of the body by the
kidneys.
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Factors affecting results
- Movement during the
X-rays may cause blurred images.
- Obesity and failure
to fast before the procedure may obscure the X-rays.
- Sometimes it is impossible
to place the catheter into a specific artery that needs to be examined.
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Advantages
- This is the best test
for providing an excellent view of the arteries in the abdomen.
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Disadvantages
- It's invasive.
- It entails risks of
bleeding or abnormal clotting.
- It also entails exposure
to radiation.
- Potential for allergic
reactions to the dye.
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