Compartmental analysis of cerebrospinal fluid transfer and absorption in simulated hydrocephalus. 1985

P N Brown, and P C Jackson, and G E Staddon, and R B Richardson, and H B Griffith

A mathematical model of the cerebrospinal fluid (CSF) flow dynamics found in hydrocephalic infants with myelomeningocele lesions was constructed using criteria obtained from analogous clinical situations where 125I-labelled and 131I-labelled ortho-iodobenzoyl-amino-acetic acid (hippuran) had been employed to measure CSF flow dynamics. The quantitative results from this study allowed clinical data to be assessed and the importance of various CSF transfer mechanisms to be discussed. Our mathematical model indicates that the majority of radiopharmaceutical passes from the cerebral reservoir (the ventricles) into the blood. Experimental evidence indicates that the principal mechanism responsible for this movement is the bulk flow of CSF between its sites of production in the choroid plexus and absorption by the arachnoid villi.

UI MeSH Term Description Entries
D007223 Infant A child between 1 and 23 months of age. Infants
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008433 Mathematics The deductive study of shape, quantity, and dependence. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) Mathematic
D008591 Meningomyelocele Congenital, or rarely acquired, herniation of meningeal and spinal cord tissue through a bony defect in the vertebral column. The majority of these defects occur in the lumbosacral region. Clinical features include PARAPLEGIA, loss of sensation in the lower body, and incontinence. This condition may be associated with the ARNOLD-CHIARI MALFORMATION and HYDROCEPHALUS. (From Joynt, Clinical Neurology, 1992, Ch55, pp35-6) Myelocele,Myelomeningocele,Acquired Meningomyelocele,Myelomeningocele, Acquired,Acquired Meningomyeloceles,Acquired Myelomeningocele,Acquired Myelomeningoceles,Meningomyelocele, Acquired,Meningomyeloceles,Meningomyeloceles, Acquired,Myeloceles,Myelomeningoceles,Myelomeningoceles, Acquired
D008959 Models, Neurological Theoretical representations that simulate the behavior or activity of the neurological system, processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment. Neurologic Models,Model, Neurological,Neurologic Model,Neurological Model,Neurological Models,Model, Neurologic,Models, Neurologic
D001812 Blood-Brain Barrier Specialized non-fenestrated tightly-joined ENDOTHELIAL CELLS with TIGHT JUNCTIONS that form a transport barrier for certain substances between the cerebral capillaries and the BRAIN tissue. Brain-Blood Barrier,Hemato-Encephalic Barrier,Barrier, Blood-Brain,Barrier, Brain-Blood,Barrier, Hemato-Encephalic,Barriers, Blood-Brain,Barriers, Brain-Blood,Barriers, Hemato-Encephalic,Blood Brain Barrier,Blood-Brain Barriers,Brain Blood Barrier,Brain-Blood Barriers,Hemato Encephalic Barrier,Hemato-Encephalic Barriers
D002552 Cerebral Ventricles Four CSF-filled (see CEREBROSPINAL FLUID) cavities within the cerebral hemispheres (LATERAL VENTRICLES), in the midline (THIRD VENTRICLE) and within the PONS and MEDULLA OBLONGATA (FOURTH VENTRICLE). Foramen of Monro,Cerebral Ventricular System,Cerebral Ventricle,Cerebral Ventricular Systems,Monro Foramen,System, Cerebral Ventricular,Systems, Cerebral Ventricular,Ventricle, Cerebral,Ventricles, Cerebral,Ventricular System, Cerebral,Ventricular Systems, Cerebral
D002555 Cerebrospinal Fluid A watery fluid that is continuously produced in the CHOROID PLEXUS and circulates around the surface of the BRAIN; SPINAL CORD; and in the CEREBRAL VENTRICLES. Cerebro Spinal Fluid,Cerebro Spinal Fluids,Cerebrospinal Fluids,Fluid, Cerebro Spinal,Fluid, Cerebrospinal,Fluids, Cerebro Spinal,Fluids, Cerebrospinal,Spinal Fluid, Cerebro,Spinal Fluids, Cerebro
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006849 Hydrocephalus Excessive accumulation of cerebrospinal fluid within the cranium which may be associated with dilation of cerebral ventricles, INTRACRANIAL HYPERTENSION; HEADACHE; lethargy; URINARY INCONTINENCE; and ATAXIA. Communicating Hydrocephalus,Congenital Hydrocephalus,Obstructive Hydrocephalus,Post-Traumatic Hydrocephalus,Aqueductal Stenosis,Cerebral Ventriculomegaly,Fetal Cerebral Ventriculomegaly,Hydrocephalus Ex-Vacuo,Hydrocephaly,Aqueductal Stenoses,Cerebral Ventriculomegalies,Cerebral Ventriculomegalies, Fetal,Cerebral Ventriculomegaly, Fetal,Fetal Cerebral Ventriculomegalies,Hydrocephalus Ex Vacuo,Hydrocephalus Ex-Vacuos,Hydrocephalus, Communicating,Hydrocephalus, Congenital,Hydrocephalus, Obstructive,Hydrocephalus, Post-Traumatic,Post Traumatic Hydrocephalus,Stenoses, Aqueductal,Stenosis, Aqueductal,Ventriculomegalies, Cerebral,Ventriculomegalies, Fetal Cerebral,Ventriculomegaly, Cerebral,Ventriculomegaly, Fetal Cerebral

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