Reasons you may not be able to
have the test or why the results may not be helpful include:
Being pregnant. An angiogram is not usually
done during pregnancy because the radiation could damage the developing baby
Blockage or curving of the blood
vessels caused by
high blood pressure, or aging. This may make it hard
to guide the catheter through the blood vessels or hard to inject the
Not being able to lie still during the test.
What To Think About
A magnetic resonance angiogram (MRA) or
computed tomography angiogram (CTA) may be an option instead of an angiogram.
Each of these tests is less invasive than a standard angiogram. Some MRA tests
and all CTA tests require an injection of dye. A CTA also involves radiation
exposure. Some surgeons may want results
from a standard angiogram before doing surgery to repair a damaged or abnormal
For people with kidney problems,
dehydration, steps are taken to prevent kidney damage.
Less dye may be used or more fluids may be given before, during, and after the
test. If you have a history of kidney problems, other blood tests (creatinine,
blood urea nitrogen) may be done before an angiogram to make sure that your
kidneys are working well.
In rare cases,
surgery may be needed to repair a hole in the blood vessel where the catheter
was placed. There is also a substance that can be used to
help plug the hole in the vessel and stop the bleeding. The substance used to
plug the hole in the vessel is normally absorbed by the body over several
Other Works Consulted
Bluemke, D, et al. (2008). Noninvasive coronary artery
imaging: Magnetic resonance angiography and multidetector computed tomography
angiography. A scientific statement From the American Heart Association
Committee on Cardiovascular Imaging and Intervention of the Council on
Cardiovascular Radiology and Intervention, and the Councils on Clinical
Cardiology and Cardiovascular Disease in the Young. Circulation, 118: 586–606.
Chernecky CC, Berger BJ (2008). Laboratory Tests and Diagnostic Procedures, 5th ed. St. Louis:
Pagana KD, Pagana TJ (2010). Mosby’s Manual of Diagnostic and Laboratory Tests, 4th ed. St. Louis: Mosby.