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Infusion Cisternography

Oslo University Hospital, Oslo, Norway

Correspondence: For reprints contact: Bjørn Magnaes, Dept. of Neurosurgery, Rikshospitalet, Oslo 1, Norway.

ABSTRACT

A source of error in cerebrospinal fluid (CSF) infusion tests is leakage at the dural puncture site. The addition of a bolus of radionuclide to the infusion fluid was helpful in detecting the existence of leakage as shown by increased infusion pressure in six of eight patients studied with and without scintigraphic evidence of leakage. Comparison of CSF dynamics in 26 patients studied by infusion cisternography and conventional cisternography showed similar patterns, suggesting no alteration of CSF dynamics by the artificial CSF infusion. Combining the two tests, therefore, resulted in simple identification of the leakage and saved the patient time and discomfort.