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Knee Pain Health Center

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Knee Pain Health Center

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Magnetic Resonance Imaging (MRI) of the Knee

(continued)

What To Think About

Sometimes your MRI test results may be different than those from CT, ultrasound, or X-ray tests because the MRI scan is more specific.
In some people, a knee MRI has given enough information about the knee joint that those people do not need an arthroscopy. For more information, see the topic Arthroscopy.
Contrast material put directly in the knee (arthrogram) may be done in people who cannot have an MRI or where MRI is not available. An arthrogram may also be done in people with total knee joint replacements to check for loose parts. For more information, see the topic Arthrogram.
Open MRI machines are now made so that the magnet does not completely surround you. Open MRI is useful for people who are claustrophobic or obese. But these machines are not available everywhere. Also, these machines may not be able to do all the studies needed to check for problems.

Other Works Consulted
Chernecky CC, Berger BJ (2008). Laboratory Tests and Diagnostic Procedures, 5th ed. St. Louis: Saunders.
Fischbach FT, Dunning MB III, eds. (2009). Manual of Laboratory and Diagnostic Tests, 8th ed. Philadelphia: Lippincott Williams and Wilkins.
Pagana KD, Pagana TJ (2010). Mosby?s Manual of Diagnostic and Laboratory Tests, 4th ed. St. Louis: Mosby Elsevier.

By	Healthwise Staff
Primary Medical Reviewer	Kathleen Romito, MD - Family Medicine
Specialist Medical Reviewer	Paul D. Traughber, MD - Diagnostic Radiology
Last Revised	December 8, 2010

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WebMD Medical Reference from Healthwise

Last Updated: December 08, 2010

This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.