What is a cisternogram used for?
Your doctor has recommended you for a cisternogram. This test is used to look for problems with cerebrospinal fluid (CSF) flow. CSF flows through the subarachnoid space that surrounds your brain and spinal cord. Cisternograms may be used to diagnose a CSF leak or identify blockages in the CSF pathway.
How long does a cisternogram take?
The scan takes about 30-60 minutes. You will be scheduled for serial scans starting about 24 hours, 48 hours and possibly 72 hours after your initial scan. If you had pledgets placed, they will be removed at the 24-hour scan.
How do you prepare for a cisternogram?
Most people don’t need to do anything to prepare for a cisternogram. In some cases, your healthcare provider may give you special instructions about eating or drinking before the procedure. You should plan to have someone drive you home after your test.
How is a CT cisternogram performed?
In order to determine the position of the leak a contrast material is injected into the subarachnoid space via a lumbar approach. The patient is then tilted with the head down and a CT scan is performed to see where the CSF and the contrast is leaking out.
Can a CSF leak cause death?
A cranial CSF leak results in a runny nose and carries a high risk of meningitis, an inflammation of the membrane around the brain and spinal cord, which can be fatal and requires emergency attention.
What is a CT cisternography?
Computed tomography (CT) cisternography is an imaging technique used to diagnose CSF rhinorrhea or CSF otorrhea (CSF leaks), as CT allows the assessment of the bones of the base of the skull.
What is an isotope Cisternogram?
Another modality without significant current use is isotope cisternography. The method involves injecting a radiolabeled isotope into the CSF space. Using this method, the excretion of the isotope can be monitored.
How much does a Cisternogram cost?
On MDsave, the cost of a Cisternogram for Normal Pressure Hydrocephalus (NPH) ranges from $561 to $1,107. Those on high deductible health plans or without insurance can save when they buy their procedure upfront through MDsave.
What are Pledgets for Cisternogram?
This test is used to diagnose a cerebrospinal fluid (CSF) leak. It can be ordered with pledgets (for CSF leaks of the head) or without (for spinal leaks or normal-pressure hydrocephalus). Patients: Please do not eat or drink anything for eight hours before this study.
What is MRI cisternography?
Magnetic Resonance Imaging (MRI) cisternography is a radiation test that creates images of the cerebrospinal fluid CSF. The CSF flows through the cavities of the brain and spinal cord.
What is the pH of in-111 DTPA?
In-111 DTPA Description In-111 DTPA is supplied as a sterile, pyrogen-free, isotonic, aqueous solution that is buffered to pH 7 to 8. At calibration time, each milliliter contains 2.5 mCi of Pentetate Indium Disodium In-111 (no carrier-added) and sodium bicarbonate for pH adjustment.
Is 111in-dtpa chemically stable in intrathecal administration?
For the past one year 301 RI cisternographies were performed in 160 cases at the Neurosurgical Survice of Shizuoka Rosai Hospital. Among those 169Yb-DTPA was used in 137 occasions, 111In-DTPA in 53, and both 169Yb-DTPA and 111In-DTPA in 30. The results of this study were as follow. 1. 111In-DTPA was chemically stable in intrathecal administration.
What is in-111 DTPA made of?
In-111 DTPA is supplied as a sterile, pyrogen-free, isotonic, aqueous solution that is buffered to pH 7 to 8. At calibration time, each milliliter contains 2.5 mCi of Pentetate Indium Disodium In-111 (no carrier-added) and sodium bicarbonate for pH adjustment.
How does in-111 enter the basal cisterns?
After intrathecal administration, the In-111 DTPA is absorbed from the subarachnoid space and the remainder flows superiorly to the basal cisterns within 2 to 4 hours and subsequently will be apparent in the Sylvian cisterns, the interhemispheric cisterns, and over the cerebral convexities.