CSF DYNAMICS IN PATIENTS WITH MENINGIOMAS

The purpose of this work was to study CSF dynamics and brain elasticit y in patients with peritumoral BE. The investigations was carried out in 14 patients with supratentorial meningiomas. The volume of tumor an d the volume of BE was determined planimetrically on CT. CSF dynamics were evaluated using constant-pressure infusion-drainage tests. A sign ificant positive,correlation was observed between Ve and F. Definite i ncreases in F in patients with high Ve may depend on the sum of the cl earance of BE fluid and the amount of CSF produced. Increase in R corr elates with the maximum values of Vt and Ve. This increase in R may de pend on the compression of arachnoid villi by tumor and swollen brain.