0000000000594322
AUTHOR
K. J. Zülch
Intracranial Pressure and Mass Displacements of the Intracranial Contents
The brain is completely surrounded by the bony skull and its closely adherent, tough, dural inner lining. This converts the enclosed space into a watertight chamber with the exception of the small, basally situated foramen magnum. In adults, these factors combine to prevent the skull from expanding. Consequently, the intracranial volume cannot fluctuate. In addition, the intracranial contents — blood, brain, and spinal fluid — are essentially noncompressible.
Ossovenography and Epidural Venography
Henning (1940) and Ehrhardt and Kneip (1943) were the first to report injection of contrast medium into bone. In 1952 Fischgold et al. reported that contrast injections into a human spinous process resulted in an outline of the venous plexus of the attached vertebral body. In subsequent years improvements have been made which now permit contrast visualization of the venous plexuses of the entire vertebral axis.
Special Neuropathology — Morphology and Biology of the Space-Occupying and Atrophic Processes with Their Related Neuroradiological Changes
Site and expansion of the space-occupying and atrophic processes are to a certain degree type-specific. The neuroradiologist must therefore familiarize himself with the various kinds of disease processes.