Cisternography

Cisternography is a medical imaging technique used to visualize and diagnose conditions related to the cerebrospinal fluid (CSF) pathways in the human body. This procedure involves the injection of a radioactive tracer into the CSF to allow for detailed imaging of the fluid's flow and distribution.

Procedure

The cisternography procedure begins with a lumbar puncture, where a needle is inserted into the lower back to access the CSF. A radioactive tracer, typically Indium-111 or Technetium-99m, is then injected into the CSF. The patient is then scanned using a gamma camera to capture images of the tracer as it moves through the CSF pathways.

Applications

Cisternography is primarily used to diagnose conditions that affect the CSF pathways, such as hydrocephalus, meningitis, and leakage of cerebrospinal fluid. It can also be used to guide treatment decisions for these conditions.

Risks and Complications

As with any medical procedure, cisternography carries some risks. These include infection, bleeding, and allergic reactions to the radioactive tracer. Additionally, the procedure may cause temporary discomfort or pain at the injection site.

History

Cisternography was first developed in the 1960s as a way to visualize the CSF pathways. Since then, it has been refined and improved, with newer tracers and imaging techniques providing more detailed and accurate images.

See Also

• Lumbar puncture
• Gamma camera
• Radioactive tracer

References

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