Posterior fossa subdural hematoma demonstrated by vertebral angiographyMcClelland, R.; Ramirez-Lassepas, M.
doi: 10.1007/BF00329994pmid: 1256644
234 10 10 4 4 R. R. McClelland M. Ramirez-Lassepas Department of Radiology University of Minnesota, at St. Paul-Ramsey Hospital 55101 St. Paul Minnesota Department of Neurology University of Minnesota, at St. Paul-Ramsey Hospital 55101 St. Paul Minnesota Summary A case of spontaneous posterior fossa subdural hematoma secondary to anticoagulation therapy with definitive diagnosis made by vertebral angiography is reported. Vertebral angiographic findings are illustrated and demonstrate primarily mass effect from posterior compartment of posterior fossa and avascular area. Carotid angiography did not show hydrocephalus. A review of the literature was made and this appears to be the first reported case in which a posterior fossa subdural hematoma has been diagnosed by vertebral angiography.
Cerebral cortical arteries in the diagnosis of epidural hematomaGlickman, M.; Handel, S.; Hoff, J.; Coulson, W.
doi: 10.1007/BF00329995pmid: 1256646
234 10 10 4 4 M. G. Glickman S. F. Handel J. T. Hoff W. Coulson Department of Radiology University of California School of Medicine San Francisco California Department of Neurological Surgery University of California School of Medicine and San Francisco General Hospital San Francisco California Dept. of Radiology Yale-New Haven Hospital 789 Howard Ave. 06504 New Haven Conn. USA Summary Review of cerebral arteriograms of all our patients (19) with epidural hematoma over a 2 year period revealed evidence of localized extrinsic compression of the cerebral cortex in all cases. This finding, although not as specific as those previously described for epidural hematoma, was strongly suggestive. A 2 year prospective study was then initiated employing internal, rather than common carotid arteriography, because opacification of the external carotid artery is not necessary for evaluation of cortical compression. In this study, which consisted of 21 patients, epidural hematoma was correctly diagnosed in all, relying primarily on signs of localized extrinsic cerebral cortical compression. No epidural hematoma was misinterpreted as being a subdural hematoma or an intracerebral injury, and all epidural hematomas that were present were diagnosed correctly. We conclude that internal carotid arteriography is a sensitive method for diagnosing epidural hematoma. The signs of extrinsic cortical compression should be emphasized in the interpretation of arteriograms of patients with head injuries whether the internal or the common carotid artery is injected.
External detection of axoplasmic flow using radionuclidesWidén, L.; Greitz, T.; Micheloyannakis, J.; Åsard, P.
doi: 10.1007/BF00329996pmid: 56730
234 10 10 4 4 L. Widén T. Greitz J. Micheloyannakis P. E. Åsard Department of Clinical Neurophysiology and Neuroradiology Karolinska Sjukhuset Stockholm Sweden Department of Medical Physics Danderyds Sjukhus Stockholm Sweden Summary 1. In order to investigate the possibilities of studying the axoplasmic flow in vivo by means of radionuclide scanning 75 Se-methionine was injected into the L 6 , L 7 or S 1 spinal ganglia of cats and the spread of the isotope recorded with a gamma camera. — 2. After 4 hours the area of isotope distribution extended 1–2 cm cranially and caudally in the spinal cord and a further movement of 1–2 cm was noted during the following 2–5 days. — 3. Scanning of removed specimens of the spinal cord, roots, ganglia and nerves confirmed the intramedullary uptake and in addition revealed an uptake in the dorsal root. Determination of the specific radioactivity showed the presence of the isotope in the ventral root and spinal nerve also, not, however, sufficient for scintigraphy. — 4. Microautoradiographic studies with 3 H-methionine demonstrated isotope uptake in axons of the dorsal roots and root entry zone of the spinal cord. Hence, the spread of the isotope was likely to have occurred by axoplasmic flow. This seems to provide a basis for further in vivo studies of this phenomenon.
Cavum veli interpositi. Roentgen anatomy — Pathology and physiologyPicard, L.; Leymarie, F.; Roland, J.; Sigiel, M.; Masson, J.; André, J.; Renard, M.
doi: 10.1007/BF00329998pmid: 1256647
234 10 10 4 4 L. Picard F. Leymarie J. Roland M. Sigiel J. P. Masson J. M. André M. Renard Départment de Neuroradiologie Nancy/Cedex (France) Summary 158 pneumoencephalographies of infants less than 2 years old were examined and 53 of them had a large cavum veli interpositi. A neuroradiological description of this cistern is given and a comparison made with injected anatomical specimens. A statistical comparison with 105 pneumoencephalographies without a cavum veli interpositi does not show any correlation between the presence of this cistern and pathological conditions. This investigation indicates that a large cavum veli interpositi in the newborn has no relation to hydrocephalus or cerebral atrophy. The younger the child, the more frequent is the presence of this cistern, especially under eight months of age.