CSF Fluid Flow - Cisternography

Indications

• Differential diagnosis and localization of CSF leaks.
• Evaluation of patients suspected of having communicating hydrocephalus.
• Evaluation of functional status of ventricular shunts.

Radiopharmaceutical

500 microcuries In-111-DTPA injected into the lumbar subarachnoid space per Radiologist under fluoroscopic guidance.ly

Patient Preparation

• If time permits, patient should be NPO prior to the examination.
• Informed consent prior to Lumbar Puncture.
• Risk and benefits of Lumbar Puncture discussed by Radiologist prior to puncture.
• Radiation involved discussed by Radiologist prior to puncture

Procedure

• Make standard preparation, sterile technique and Radiologist will perform lumbar puncture.
• Injection of 500 microcuries In-111-DTPA
• At 4 to 6 hours and 24, 48 hour obtain anterior, posterior, both laterals, and Vertex view of the head .72 hour if requested per Radiologist.