Several cases are presented which illustrate the indications and results of a relatively new procedure of intrathecal injection of radioiodinated human seruin albumin I 131 to demonstrate cerebrospinal fluid dynamics. This procedure has been used in conjunction with pneumoencephalography in the diagnosis of communicating hydrocephalus. A proper dose as well as adequate volume are necessary to obtain diagnostic scans.
Fenton, J. L.; Eyler, W. R.; DuSault, L. A.; Griser, G. M.; and Stebner, F. C.
"Isotope Cisternography — RISA®,"
Henry Ford Hospital Medical Journal
: Vol. 17
Available at: https://scholarlycommons.henryford.com/hfhmedjournal/vol17/iss2/8