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Alternative names Return to top
Bladder scanDefinition Return to top
A Radionuclide cystogram is a test (nuclear scan) using radioactive material (radioisotope) that is placed into the bladder. A scanner then detects radioactivity to evaluate bladder and urinary tract functions.How the test is performed Return to top
The specific procedure may vary slightly depending on the reason for the examination (reflux, distention, incomplete emptying, etc.)
You are asked to lie on the scanner table. After cleaning the urinary opening, a catheter is placed into the bladder via the urethra. A solution containing the radioisotope is instilled into the bladder until the bladder is full (or you indicate that the bladder feels full).
Depending on the suspected problem, the timing of scanning/imaging varies. The bladder may be scanned while full. You may be asked to urinate while being scanned (into a urinal, bedpan, or towels).
To test for incomplete bladder emptying, images may be taken with the bladder full, then the person is allowed to get up and urinate into the toilet, return to the scanner, and images are taken immediately after emptying the bladder.
How to prepare for the test Return to top
No medication, fasting, or special diets are usually necessary.How the test will feel Return to top
There may be some discomfort during insertion of the catheter. Catheterization and urination in public (and sometimes, when lying on the table) may be difficult or embarrassing. You cannot feel the radioisotope or the scanning.Why the test is performed Return to top
This test is performed to evaluate the filling and emptying of the bladder, and to evaluate for reflux of urine or obstruction to the flow of urine.Normal Values Return to top
A normal value is no reflux or other abnormal urine flow, and no obstruction to the flow of urine occurs. The bladder empties completely.What abnormal results mean Return to top
What the risks are Return to top
Risks are essentially the same as for X-rays (radiation) and catheterization of the bladder.Special considerations Return to top
This test is very useful to provide information about how the bladder responds to pressure, without exposure to radiographic contrast materials. Update Date: 10/17/2003 Updated by: Jeffrey Brown, M.D., Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO. Review provided by VeriMed Healthcare Network.
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Page last updated: 28 October 2004 |