A radiological study used to evaluate the flow pattern of cerebrospinal fluid (CSF) by the introduction of a non-diffusible radiopharmaceutical agent into the subarachnoid space. Cisternography is used in the diagnosis of communicating hydrocephalus and CSF leaks and the postoperative evaluation of ventricular shunts.
Radiographic evaluation of the basal cisterns of the brain and of the flow of cerebrospinal fluid, e.g., with magnetic resonance imaging or an injected radioisotope. It is used to detect cerebrospinal fluid leaks, to visualize aneurysms and tumors, and to assess the anatomy of the cranial nerves.