Semiautomated Methods for Quantitating CSF Volume on Cranial Computed Tomography

Abstract

Two methods for quantitating cerebrospinal fluid (CSF) volume in each hemicranium and on the total section on cranial computed tomography are described and compared. Both analyses utilize information input by the user, but differ in their treatment of volume averaging. The second analysis (Automated Section Information-l) measured partially volumed CSF more sensitively. Potential inaccuracies due to technical artifacts are summarized.