Radionuclide techniques in the evaluation of cerebrospinal fluid shunts.

Currently, radionuclide studies offer the simplest and most accurate means of determining the patency of CSF shunts. The selection of the best test procedure depends upon the type of hydrocephalus and the type of shunt which has been inserted. This review documents the development of radionuclide shunt patency tests and suggests the optimum test procedure for a given clinical problem.