isotope cisternography

isotope cisternography

The use of a radioactive tracer to investigate the circulation of cerebrospinal fluid. A tracer such as 131I serum albumin is injected in the lumbar subarachnoid space. Flow of the tracer toward the head and into areas of the brain can be recorded by means of serial scintillation scanning. This technique is useful in studying hydrocephalus.
See also: cisternography