Cisternogram Study for Rhinorrhea

You have been scheduled for a cisternogram study, which involves the use of a small amount of radioactive material. The level of radioactivity used is extremely low and has no side effects.

Preparation for the procedure:
There are no pre-exam instructions. Please inform the technologist if you are pregnant or breast feeding. The imaging may be changed, or special instructions given based upon that information.

What to expect:
A physician will perform a lumbar puncture to infuse the isotope into the spinal canal. You will then lie flat for at least thirty minutes. Four to six absorbent dressings (nasal pledgets) will be placed in your nose to detect any leakage of cerebral spinal fluid. You will be asked to return four to six hours later for a scan. Once in the scan room you will lie on a table and a special detector called a gamma camera will be placed near your head to image the cerebral spinal fluid in your brain. The scan takes approximately one hour. You will be asked to return for another scan at twenty four hours. Your blood will be drawn and the nasal pledgets will be removed at this time. Occasionally further delay images are needed at forty eight and seventy two hours.

The images will be reviewed and the results will be sent to your physician. Your physician will discuss these results with you and explain what they mean in relation to your health.

Your questions and comments:
call (805) 563-5870.

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