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  • 1
    ISSN: 1432-1920
    Keywords: Key words Sinuses ; dural ; Epidermoid cyst ; skull ; Magnetic resonance imaging ; Tinnitus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report an intradiploic epidermoid cyst of the skull responsible for transverse sinus compression and presenting with nonpulsatile tinnitus. Plain films and CT both demonstrated the tumour. Cerebral angiography showed best the degree of narrowing of the right transverse sinus, accompanied with turbulent flow probably leading to tinnitus. MRI demonstrated accurately both the tumour and the dural sinus compression. The tumour was totally removed, cranioplasty was performed, and the patient was discharged free of symptoms.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 16 (1994), S. 303-305 
    ISSN: 1279-8517
    Keywords: Myology ; Three-dimensional reconstruction ; Computed tomography ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Lors d'un examen radiologique de routine (TDM, IRM) pratiqué chez une femme de 72 ans, une image tissulaire molle fut mise en évidence dans le triangle cervical postérieur gauche. La reconstruction tridimensionnelle de cette structure a suggéré qu'il pouvait s'agir d'une variante musculaire, en l'occurrence d'un muscle élévateur de la clavicule. Dans notre cas, l'origine musculaire était située au niveau de la colonne cervicale supérieure et son insertion distale sur le tiers latéral de la clavicule. Cette exemple nous amène à rappeler l'aspect général des variantes anatomiques musculaires dans le contexte des techniques d'imagerie moderne.
    Notes: Summary During routine radiological examination of a 72 year-old woman a soft-tissue shadow in the left posterior triangle of the neck was observed. Three-dimensional reconstruction of this structure suggested that it might be a muscular variant: a levator claviculae muscle. In our case it took origin from the upper part of the cervical column and was inserted into the lateral third of the clavicle. With this example as a background, the general significance of anatomical muscular variants for modern imaging techniques is discussed.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1279-8517
    Keywords: Vascular model ; Methodology ; Reproducibility
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Un modèle in vitro des principales artères cérébrales humaines avec ou sans anévrysmes artériels sacciformes est présenté. Un moulage par corrosion des artères cérébrales fut obtenu sur un specimen humain. Trois anévrysmes furent simulés et ajoutés à ce moulage. Des copies en cire de ce montage furent produites, puis enrobées d'une résine liquide se solidifiant en blocs transparents. Après évacuation de la cire, un modèle consistant en une reproduction «en creux» de l'arbre vasculaire original dans un bloc transparent fut obtenu. Ce modèle est reproductible et anatomiquement réaliste. Comme il est transparent à la lumière visible et compatible avec les techniques d'imagerie moderne (angio-graphie numérisée, TDM, IRM, Doppler transcrânien), ce modèle devrait se révêler utile dans le cadre d'investigations de type hémodynamique et radiologique. La méthodologie décrite peut être appliquée à toute structure anatomique de configuration creuse, permettant la préparation de modèles artériels et veineux de régions anatomiques diverses, ainsi que de modèles basés sur d'autres systèmes anatomiques à l'exemple des voies biliaires ou urinaires.
    Notes: Summary Anin vitro model of the main human cerebral arteries with or without saccular arterial aneurysms is presented. A cast of the cerebral arteries was obtained in a human specimen. Three aneurysms were simulated and added to the cast. Wax copies of the cast were produced, and embedded with liquid resin solidifying into solid blocks. After evacuation of the wax, a model consisting of a hollow reproduction of the cast within the resin block was obtained. The model is reproducible and anatomically accurate. Since it is transparent to visible light, and compatible with x-ray, magnetic resonance and transcranial doppler techniques, it should prove useful for a wide range of haemodynamic and radiologic investigations. The reported technique may be adapted to any structure with a hollow configuration, allowing for the preparation of arterial and venous models from other vascular areas, as well as models from other anatomic systems, such as the biliary or urinary tracts.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1279-8517
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Conclusion Un modèle anatomique in vitro des artères cérébrales est présenté. Ce modèle est hautement reproductible et restitue l'arbre artériel humain dans sa complexité. Des anévrysmes sacciformes secondairement implantés sur le moulage artériel sont présentés comme exemple de pathologies qui peuvent être simulées sur ce modèle. Le modèle est obtenu avec un faible coût de production. Il est transparent à la lumière visible, et compatible avec les techniques radiologiques faisant appel aux rayons X, à l'imagerie par résonance magnétique et au Doppler transcrânien. Ce modèle devrait donc se révêler utile comme outil d'investigation hémodynamique et radiologique, ainsi que comme support d'enseignement.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1279-8517
    Keywords: Vascular model ; Methodology ; Reproducibility
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract An in vitro model of the main human cerebral arteries with or without saccular arterial aneurysms is presented. A cast of the cerebral arteries was obtained in a human specimen. Three aneurysms were simulated and added to the cast. Wax copies of the cast were produced, and embedded with liquid resin solidifying into solid blocks. After evacuation of the wax, a model consisting of a hollow reproduction of the cast within the resin block was obtained. The model is reproducible and anatomically accurate. Since it is transparent to visible light, and compatible with x-ray, magnetic resonance and transcranial doppler techniques, it should prove useful for a wide range of haemodynamic and radiologic investigations. The reported technique may be adapted to any structure with a hollow configuration, allowing for the preparation of arterial and venous models from other vascular areas, as well as models from other anatomic systems, such as the biliary or urinary tracts.
    Type of Medium: Electronic Resource
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