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Click on the first letter in the test name:
CT scan - orbital Article
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CT scan - orbital ct-scan
Definition
An orbital CT scan is a procedure that uses x-rays to examine the orbits (the eye sockets) and the globes (the eyes).
Alternative Names
CT scan - orbital
Why the CT scan - orbital is Performed
This test is helpful in diagnosing a lesion or other diseases that affect the tissues in several areas. These areas are around the eyes, sinuses, optic nerves (nerves supplying the eyes), and eye muscles and blood vessels. Subtle fractures of the orbits may also be detected.
How the CT scan - orbital is Performed
A contrast dye may be injected into a vein before the test.
You lie on a table that can be moved by the technician operating the scanner. Only your head is positioned inside the CT scanner. The exam usually lasts no more than a few minutes.
You may be allowed to rest your head on a pillow, but this must be done before the scan begins. It is very important that once your head is in place, you do not move it during the test
How to Prepare for the CT scan - orbital
You must sign an informed consent form. Remove dentures, any jewelry, and anything metal.
How the CT scan - orbital Will Feel
The most discomfort arises from the need to lie still on the table during the scan. The scan itself is painless.
Risks
The amount of radiation in a CT scan is minimal. There may be some concern for nursing or pregnant women. However, the benefits of the scan generally outweigh any risk to the fetus or newborn.
Considerations
The contrast dye may cause serious allergic reactions in some patients. These reactions may include headache, nausea, and vomiting.
What Abnormal Results Mean
- Graves disease
- Lesions
- Tumor
- Bleeding
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