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  • 1
    ISSN: 0942-0940
    Keywords: Internal carotid artery ; vertebral artery ; agenesis of cerebral arteries ; aneurysm ; subarachnoid haemorrhage
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A case of congenital absence of the right internal carotid and of the left vertebral arteries, associated with an aneurysm on the anterior communicating artery, is reported. Some aspects of this anomaly are reviewed.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 52 (1980), S. 299-303 
    ISSN: 0942-0940
    Keywords: Intramedullary metastasis ; computerized tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The authors describe two cases in which computerized tomography (CT) revealed the presence of cervical intramedullary metastases in the form of increased density areas.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 66 (1982), S. 61-69 
    ISSN: 0942-0940
    Keywords: Cerebral arteries, anomaly ; internal carotid artery ; anterior cerebral arteries, aneurysm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A new case of an unusual anomalous anastomotic vessel between the carotid syphon and the pericallosal artery is reported. The description of their most characteristic angiographic and anatomical features is completed with a survey of analogous anomalies found in the literature. The incidence of associated other congenital vascular anomalies and berry aneurysms is high. An explanation of the embryonic development of this vessel is hypothetical. Its angiographic recognition may be useful.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 74 (1985), S. 105-112 
    ISSN: 0942-0940
    Keywords: Cerebellar infarction ; computerized tomography ; CSF shunt ; external ventricular drainage ; posterior fossa surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary After reviewing the literature, a personal series of 10 adult patients with cerebellar infarction diagnosed by CT scan is described. The clinical picture in young adult men is characterized by rapid onset of headache, vomiting, vertigo, ataxia and blurred vision. After this sudden onset the patients may present a stable course or a rapid or delayed onset of brain stem compression, revealed by impairment of consciousness. CT scan is the diagnostic method of choice. The correlation between angiographic and CT localization of the infarction is not good. For therapy the following policy is suggested: in alert and clinically stable patients: medical treatment (mannitol, glycerol, dexamethason), ICP and serial CT monitoring; in alert patients with hydrocephalus or mass effect: medical treatment and monitoring as mentioned before; ventricular drainage if ICP surpasses 350 mm H2O; in patients with impaired consciousness and hydrocephalus or mass effect: immediate ventricular drainage. If it is not followed by prompt improvement of the level of consciousness, an emergency suboccipital craniectomy with removal of the infarcted tissue should be done.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 2 (1971), S. 216-222 
    ISSN: 1432-1920
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Resume Les auteurs présentent une étude anatomique et radiographique de l'artère auditive interne. Rarement elle se détache du tronc basilaire pour atteindre l'oreille interne sans abandonner de collatérales pour le cervelet; plus souvent elle est une branche de l'artère cérébello-labyrinthique dont elle naît non loin du conduit auditif interne. Le premier segment on segment cisternal ou précanalaire traverse la citerne ponto-cérébelleuse. Le segment intra-canalaire circule le long du plancher du conduit auditif interne. L'étude de l'artère auditive interne s'avère intéressante dans les cas de processus expansif de l'angle ponto-cérébelleux et de troubles de l'oreille interne dont l'origine est vasculaire.
    Abstract: Zusammenfassung Anatomische und röntgenologische Beschreibung der A. auditiva interna. Dieses Gefäß entspringt selten von der A. basilaris. In der Mehrzahl der Fälle liegt sie als Ast der A. cerebello-labyrinthi vor. Das erste Segment der A. auditiva interna verläuft durch die Cisterna ponto-cerebellaris und endet in der Nähe des Meatus acusticus internus. Von hierab reicht das intracanaliculäre Segment, das der inneren Begrenzung des inneren Gehörganges folgt. Der angiographische Nachweis dieses Gefäßes orlaubt eine größere Sicherheit bei der Diagnostik von raumfordernden Prozessen im Bereich des Kleinhirnbrückenwinkels und von Erkrankungen im Bereich des Innenohrs.
    Notes: Summary The authors have made a full anatomical description and roentgenological study of the internal auditory or labyrinthine artery. The internal auditory artery seldom arises from the basilar trunk and reaches the inner ear without giving off collateral branches to the cerebellum; more often it originates as a branch of the cerebello-labyrinthine artery near to the internal auditory meatus. The first segment of the internal auditory artery goes through the pontocerebellar cistern (precanalicular or cisternal segment) ending with a slight angle close to the internal auditory meatus; at this level the intracanalicular segment arises and follows the inferior wall of the internal auditory canal with a fluctuating path. Angiographic studies made on a group of patients affected by lesions of different nature affecting the petrous portion of temporal bone have shown that the roentgenological visualization of the internal auditory artery offers greater accuracy in diagnosing expanding processes in the region of the ponto-cerebellar angle and opens new horizons for the study of those diseases of the ear, in the pathogenesis of which a vascular factor plays an important role.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 5 (1973), S. 190-194 
    ISSN: 1432-1920
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les auteurs ont utilisé l'hyperventilation artificielle en cours d'encéphalographie gazeuse fractionnée. Chez 9 malades ayant subi une encéphalographie gazeuse fractionnée conventionnelle, l'hyperventilation fut installée à la fin de l'examen. Dans les autres cas où l'encéphalographie selon la technique conventionnelle n'avait pas donné les résultats escomptés l'examen fut répété cinq jours plustard, après hyperventilation mécanique pendant 30 minutes sous pression positive intermittente. Chez 3 malades présentant des processus expansifs de la fosse postérieure, l'encéphalographie avec hyperventilation confirma le défaut de passage de l'air dans le système ventriculaire; chez 12 malades on obtint soit la visualisation soit un meilleur remplissage du système ventriculaire et des espaces sous-arachnoïdiens. La grande fréquence du bon remplissage du système ventriculaire et des espaces sous-arachnoïdiens réduit le nombre de patients nécessitant une ventriculographie. L'encéphalographie gazeuse fractionnée après hyperventilation fut bien tolérée par tous les malades.
    Abstract: Zusammenfassung Während der fraktionierten Encephalographie wurde eine artefizielle Hyperventilation durchgeführt. Bei Kranken, deren Encephalographie-Ergebnisse mit der konventionellen Untersuchungstechnik unzureichend waren, wurde die Untersuchung 5 Tage später unter Hyperventilation wiederholt. Es fand sieh eine bessere Passage der eingeführten Luft, eine bessere Füllung des Ventrikelsystems und der Subarachnoidealräume. Die Untersuchung wurde von allen Patienten gut toleriert.
    Notes: Summary Artificial hyperventilation was used during fractional encephalography. In 9 patients who underwent conventional fractional encephalography, the hyperventilation was started at the end of the investigation. In the remaining cases, in which fractional encephalography by the conventional technique gave unsatisfactory results, the examination was repeated 5 days later after mechanical hyperventilation for 30 min under intermittent positive pressure. In 3 patients with expanding processes of the posterior cranial fossa, hyperventilation encephalography confirmed the failure of passage of air into the ventricular system, and in 12 patients either visualisation or improved filling of the ventricular system and subarachnoid spaces was obtained. The great incidence of good filling of both the ventricular system and the subarachnoid spaces reduces the number of patients requiring ventriculography. Fractional encephalography following hyperventilation was well tolerated in all the patients.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Skeletal radiology 14 (1985), S. 226-230 
    ISSN: 1432-2161
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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