title: Study of brain tissue impedance in the hydrocephalic cat.
abstract: Impedographic studies were made in cats made hydrocephalic by intracisternal kaolin. Enlargement of the anterior horns preceded that of the body of the lateral ventricles, and there was a selectivity to pressure atrophy among different tissues within the brain. Furthermore, sequential measurement of impedance using chronically implanted electrodes demonstrated a gradual decrease of impedance in the periventricular white matter during the development of hydrocephalus, suggesting an expansion of the extracellular space in the tissue around the ventricular wall.
authors.affiliation: Neurosurgical Research Institute, Kitakyushu Central Hospital, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Higashi
authors.forename: Y
authors.initials: Y
authors.lastname: Noda
authors.forename: S
authors.initials: S
authors.lastname: Tachibana
mesh_terms: D000818:Animals; D001921:Brain / Q000473:pathology / Q000503:physiopathology; D002415:Cats; D006849:Hydrocephalus / Q000473:pathology / Q000503:physiopathology*; D010992:Plethysmography, Impedance / Q000379:methods*