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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 9 (1975), S. 217-222 
    ISSN: 1432-1920
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Cet article rapporte le cas d'une femme dont le tableau clinique, atypique, comportait des signes évoquant une encéphalite et d'autres une tumeur cérébrale. L'angiographie cérébrale objectivait une masse cérébrale unilatérale et une dilatation des veines médullaires profondes, habituellemant interprêtée comme un signe de néoplasme. Le diagnostic d'astrocytome fut porté à l'examen de la biopsie cérébrale. Par la suite, une rémission clinique spontanée et une régréssion des signes angiographiques furent constatées, ce qui a une réévaluation de l'examen microscopique et au diagnostic final d'encéphalite. La pathogenie des anomalies angiographiques cérébrales observée en cas d'encéphalite est passée en revue. La dilatation transitoire des veines médullaires profondes est probablement due à l'hyperhémia. La répétition a distance de l'angiographie est recommandée lorsque le diagntic d'encéphalite est suspecté.
    Abstract: Zussamenfassung Dieser Bericht betrifft den Fall einer Frau deren Erkrankung teilweise als Enzdphalitis, teilweise als Hirntumor angesehen wurde. Zerebrale Angiographie zeigte eine einseitige zerebrale Masse mit hervorstehenden tiefen medullaren Venen, gewöhnlich als Beweis einer bösartigen Geschwulst angenommen. Biopsie wurde als Astrozytom gelesen. Spontane Remission und Zurückgehen der angiographischen Befunde führten zu einer Revision der mikroskopischen Diagnose als Enzephalitis. Die Pathogenese der abnormalen zerebralen angiographischen Befunde wird diskutiert. Das vorübergehende Auftreten der tiefen medullaren Venen ist wahrscheinlich durch die Hyperämie bedingt. Nachfolgende Angiographie ist empfohlen, wenn ein Verdacht auf Enzephalitis besteht.
    Notes: Summary This case report concerns a woman who presented an atypical clinical pattern with some features of encephalitis and other features of brain tumor. Cerebral angiography showed a unilateral cerebral mass with prominence of deep medullary veins, usually interpreted as evidence of a neoplasm. Brain biopsy was interpreted as astrocytoma. Subsequent spontaneous clinical remission and regression of angiographic findings led to a reappraisal of the microscopic interpretation with a final diagnosis of encephalitis. The pathogenesis of cerebral angiographic abnormalities observed with encephalitis is reviewed. The transient prominence of deep medullary veins is probably due to hyperemia. Followup angiography is recommended when encaphalitis is suspected.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 26 (1984), S. 299-301 
    ISSN: 1432-1920
    Keywords: Computed tomography of pituitary gland ; pituitary gland ; post partum ; pregnancy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Eight volunteer post partum female patients were examined with high resolution computed tomography during the week immediately after delivery. All patients received high dose (40–70 gm) intravenous iodine contrast administration. The scans were examined for pituitary gland height, shape and homogeneity. All of the patients had enlarged glands by the traditional standards (i.e. gland height of 8 mm or greater). The diaphragma sellae in every case bulged upward with a convex domed appearance. The glands were generally inhomogeneous. One gland had a 4 mm focal well defined area of decreased attenuation. Two patients who were studied again months later had glands which had returned to “normal” size. The enlarged, upwardly convex pituitary gland appears to be typical and normal for the recently post partum period.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 27 (1985), S. 108-111 
    ISSN: 1432-1920
    Keywords: Anatomy, brain CT ; brain, normal CT anatomy ; gray matter/white matter ratio, frontal lobe
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We attempted to establish a computed tomographic value representing the normal volume ratio of gray matter to white matter (G/W) in children in order to have a baseline for studying various developmental disorders such as white matter hypoplasia. The records of 150 children 16 years of age or younger who had normal cranial computed tomography were reviewed. From these a group of 119 were excluded for various reasons. The remaining 31 were presumed to have normal brains. Using the region of interest function for tracing gray and white matter boundaries, superior and ventral to the foramen of Munro area, measurements were determined for consecutive adjacent frontal slices.Volumes were then calculated for both gray and white matter. A volume ratio of 2.010 (σ=0.349), G/W, was then derived from each of 31 children. The clinical value of this ratio will be determined by future investigation.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 29 (1987), S. 7-9 
    ISSN: 1432-1920
    Keywords: Carotid artery ; Magnetic resonance imaging ; Blood flow
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A Siemens 0.5 Tesla Magnetic Resonance Imaging (MRI) system was used with the saddle head coil and transverse scout localization for imaging 10 normal cervical carotid artery bifurcations in the sagittal plane. Good to excellent visualization of the flow voids and vessel contours was accomplished in all cases. Careful technique and patient cooperation are required.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 9 (1975), S. 87-97 
    ISSN: 1432-1920
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La vascularisation normale et pathologique de l'orbitè dépend en partie de trois branches artérielles profondes de l'artère maxillaire. Les auteurs décrivent les branches orbitaires de l'artère méningeé moyenne, temporale antérieure profonde et sous-orbitaire sur des angiogrammes sélectifs et microradiographies avec opacification vasculaire. L'artère méningeé moyenne participe avec les branches récurentes méningée et méningolacrymale. L'artère temporale antérieure profonde donne des branches constantes pour le territoire lacrymal latéral et inférieur. L'artère sous-orbitaire donne des branches pour le territoire inferomédian de l'orbite et lacrymal inférieur. L'angiographie sélective de la carotide externe peut opacifier l'ensemble du système artériel ophtalmique mais ne visualise que faiblement les veines ophtalmiques.
    Abstract: Zusammenfassung Sowohl die normale als auch die pathologische Vaskularisation der Orbita ist teilweise abhängig von der Blutversorgung über drei tiefe Äste der A. maxillaris. Die Autoren führten bei ihren Untersuchungen selektive Angiographien und Mikroradiographien durch. Die embryonale Entwicklung wird besprochen. Es wird darauf verwiesen, daß die vordere tiefe Temporalarterie konstant Äste abgibt zu den unteren und lateralen Orbita-Abschnitten. Die infraorbitale Arterie versorgt den unteren-medialen Abschnitt der Orbita. Eine selektive Arteriographie der A. carotis interna kann das ganze arterielle Gefäßsystem im Orbita-Bereich mit Kontrastmittel füllen.
    Notes: Summary Both normal and pathological orbital vascularization appears to be partially dependent on three deep maxillary artery branches. The authors use selective angiograms and microradiographs of injected specimens to describe the orbital branches of the middle meningeal, anterior deep temporal and infraorbital arteries. Variable embryological developments determine the orbital contributions of the middle meningeal artery via the recurrent meningeal and meningolacrimal branches. The anterior deep temporal artery supplies constant branches to the inferior and lateral lacrimal territories. The infraorbital artery sends branches to the inferomedial portion of the orbit and the inferior lacrimal territory. Selective external carotid angiography may opacify the whole ophthalmic arterial system and faintly opacifies the ophthalmic veins.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-1920
    Keywords: Lupus erythematosus ; Cererbral phlebitis ; Communicating hydrocephalus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two patients with systemic lupus erythematosus, who had striking angiographic abnormalities of venous contour, are presented. Both cases also had communicating hydrocephalus. Postmortem examination of one patient led to a histological explanation of the venous changes observed radiologically. Previous radiological reports have shown involvement of arteries but not veins with lupus erythematosus. The angiographic signs of phlebitis may signifity a meningeal reaction which, when combined with ventricular enlargement, should suggest communicating hydrocephalus.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 14 (1978), S. 219-229 
    ISSN: 1432-1920
    Keywords: Arterial occlusion ; Basilar artery occlusion ; Cerebrovascular occlusive disease ; Vertebrobasilar occlusion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The diagnosis of occlusion of the intradural vertebrobasilar artery (OIDVBA) was made by means of cerebral angiography in 22 patients. The clinical presentation, course and followup were studied in conjunction with the angiographic findings in each case and the following conclusions made. OIDVBA is not rare. It occurs one-fourth as often as occlusion of the carotid artery. The correct diagnosis is not made clinically before angiography in the majority of patients. Complete visualization of the neck and intracranial vasculature is necessary to document the occlusion. Atherosclerotic thrombosis is the most common type of occlusive lesion. The most common predisposing factors are atherosclerosis, hypertensive cardiovascular disease, diabetes mellitus, and developmental vertebrobasilar hypoplasia. Most patients with occlusion are in the 7th and 8th decades of life and transient attacks of vertebrobasilar ischemia precede the occlusion in one-half of the cases. Emboli usually lodge in the terminal portion of the basilar artery whereas thrombotic occlusions tend not to be located in a characteristic segment. A majority of patients diagnosed angiographically survive their OIDVBA, but most distal occlusions result in death, often following several weeks of coma. In the surviving majority, disturbance of gait, impairment of vision, and symptoms of transient vertebrobasilar ischemia are the most common sequelae.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 25 (1983), S. 87-92 
    ISSN: 1432-1920
    Keywords: Primitive neuroectodermal tumor ; cerebral neuroblastoma ; central neuroblastoma ; brain neoplasm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The neuroradiological findings in four cases of primitive neuroectodermal tumor of the cerebrum are described. These highly malignant neoplasms of childhood present as large, enhancing cerebral masses with extensive neovascularity. Cerebrospinal fluid seeding is common and distant extraneural metastases may occur.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-1920
    Keywords: Atrophy, cerebellar ; Cyst, hemorrhagic, arachnoid, cerebellar ; Hematoma, epidural or subdural, cerebellar ; Hygroma, subdural, cerebellar ; Hydrocephalus, hemorrhagic, cerebellar
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Retrospective analysis of axial CT scans from 600 consecutive pediatric patients revealed 37 patients (6%) with abnormal low density pericerebellar spaces. Fourteen of these 37 patients (38%) were diagnosed as cerebellar atrophy, whereas 23 of the 37 patients (62%) were diagnosed as mass-like pericerebellar fluid collections. Detailed analysis of the morphology of these spaces suggests that the CT criteria proposed in this paper distinguish between (a) those low attenuation pericerebellar spaces that represent cisternal dilatation caused by cerebellar atrophy (Group I — Atrophy) and (b) those low attenuation pericerebellar spaces that represent low density mass-like collections of fluid which distort a relatively normal cerebellum (Group II — Collections). Analysis of the medical records of the patients in Group II — Collections reveal a high incidence of prematurity, developmental delay, difficult birth and head trauma, possibly indicating that such collections represent sequelae of birth.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-1920
    Keywords: CT imaging-toxemia ; Angiographic imaging-toxemia ; Pregnancy, toxemia of ; Eclampsia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two patients with severe cerebral symptoms of toxemia of pregnancy were examined using computed tomography (CT) and angiography. CT disclosed extensive areas of low attenuation within the cerebral hemispheres. Angiography revealed constriction and narrowing of proximal and peripheral vessels suggesting vasculitis with extensive areas of impaired regional cerebral blood flow. A review of the known pathology and the theories regarding the pathophysiology of the cerebral effects of toxemia is presented.
    Type of Medium: Electronic Resource
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