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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Behavior Therapy 6 (1975), S. 315-323 
    ISSN: 0005-7894
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Psychology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric radiology 9 (1980), S. 1-4 
    ISSN: 1432-1998
    Keywords: CT screening ; Tuberous sclerosis ; Contrast enhancement ; Genetic counseling ; Renal angiomyolipoma ; Occult neoplasia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The families of two patients with known tuberous sclerosis were electively evaluated by computed tomography. The CT positive (and negative) examination proved to be valuable for the genetic counseling of family members without overt clinical manifestations of tuberous sclerosis. Two patients had evidence of smaller enhancing lesions (minimal demonstrable mass without hydrocephalus) following intravenous contrast enhancement. We, therefore, suggest the use of contrast enhanced scans in addition to the plain scans to identify what may represent occult neoplasms. Addominal CT scans can prove useful in identifying the frequently associated renal hamartomas.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric radiology 18 (1988), S. 429-431 
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We describe a patient with pseudopseudohypoparathyroidism who had an osseous tubercle on the anterolateral margin of the foramen magnum causing compression of the spinal cord. This patient had no evidence for any endocrinopathies and had no other spinal canal anomalies. We suggest that the morphologic phenotype found in patients with pseudopseudohypoparathyroidism, also known as Albright's hereditary osteodystrophy, has an associated risk for spinal cord compression due to congenital vertebral anomalies. The poor recovery of neurologic function following spinal decompression mandates prompt recognition and therapy of this condition in patients with Albright's hereditary osteodystrophy.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-0649
    Keywords: PACS: 07.77.Gx; 32.80.Pj; 32.80.Lg
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. We report measurements of the angular distribution of optical suppression in photoassociative ionization collisions taking place within a bright, slow Na atom beam. At a collision “temperature” (T=Ekin/kB) of about 5 mK we observe rich structure in the suppression measure as a function of the angle between the atom-beam axis and the polarization axis of the suppressor light beam. This structure cannot be explained by the superposition of individual partial-wave contributions to the suppression measure, and we propose a partial-wave interference phenomenon to account for it.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-1920
    Keywords: Rabbit brain Anatomy ; Rabbit brain tumor ; Sequential computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The accuracy of CT imaging in evaluating VX-2 tumor growth in the rabbit brain was assessed. CT scanning was performed in 5 outbred New Zealand white male rabbits before and at 4, 7, 9 and 13 (in 3 animals) days after surgical implantation of 3x105 viable VX-2 tumor cells in the frontoparietal lobes. The CT studies were correlated with gross pathology in each. The tumor was visualized with CT in all 5 rabbits by the 9th day post implantation when the tumor ranged in size from 4–6x3–4x2–3 mm. Between the 9th and 13th day, the tumor increased 6-fold in two rabbits and 12-fold in the third rabbit. CT is a useful technique to evaluate brain tumor growth in this model and should be valuable in documenting the efficacy of chemotherapy on tumor growth.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-1920
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary With adequate concentrations of commercially available nonradioactive xenon an enhancement of brain substance was readily demonstrated by computed tomography (CT). By performing successive CT scans at a fixed brain level following xenon inhalation, the partition coefficient and clearance of xenon as well as the regional cerebral blood flow (rCBF) could be calculated. The expected physiologic alterations in rCBF with acute cerebral infarction and changes in arterial CO2 were accurately defined by xenon-enhanced CT scanning affirming the potential future applications of this technique.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 20 (1980), S. 197-201 
    ISSN: 1432-1920
    Keywords: Catheterization complications ; Angiographic complications ; Catheters ; Guidewires ; Cerebral angiography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Techniques for uncoiling knots formed in catheters during angiography have been the subject of several previous reports. A new technique for catheter unknotting is presented, based on the use of graded flexibility guidewires. The application of this graded taper method appears particularly pertinent to uncoiling softer, narrow-caliber, adversely looped catheters. Moreover, the mechanisms of knot uncoiling in the previous reports are reassessed and their imprecisions corrected.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 13 (1977), S. 7-17 
    ISSN: 1432-1920
    Keywords: CSF kinetics ; CT cisternography ; Metrizamide enhancement
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Twenty-five patients studied by serial metrizamide (Amipaque) CT cisternography were used to analyze CSF kinetics. Delayed CSF flow patterns were noted in 7 patients, while intermediate patterns occurred in 4. The abnormal cisternogram was characterized primarily by ventricular reflux and stasis and secondarily by diminution of the parasagittal blush and a periventricular rim of decreased absorption. The intermediate group had minimal ventricular stasis after 24 hours and a normal parasagittal blush. After clinical and biochemical evaluation of the patient with dementia, CT scanning is usually indicated. If a profile suggestive of communicating hydrocephalus emerges, CSF kinetics can be monitored dynamically by CT scanning with metrizamide enhancement.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 14 (1977), S. 1-3 
    ISSN: 1432-1920
    Keywords: Spinal arteriovenous malformation ; Spinal calcifications ; Spinal arteriography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A case of a calcified intramedullary aneurysm in a spinal angioma is presented. The value of preoperative angiography in the evaluation of intraspinal calcifications is discussed.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-1920
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La visualisation angiographique per se des veines cérébrales profondes péri-ventriculaires n'est pas forcément anormale. Leur visualisation spontanée dépend de la sélectivité de l'injection, de la qualité de l'image radiographique et de la quantité de produit de contraste injectée. Les veines cérébrales profondes péri-ventriculaires normales furent observées sur la phase veineuse tardive dans 2/3 des angiographies carotidiennes internes sélectives normales; leurs situations étaient le plus souvent adjacentes à l'atrium et à la partie postérieure du corps du ventricule latéral. Les veines cérébrales profondes périventriculaires normales et anormales peuvent être distinguées par le temps d'apparition, le calibre, la longueur et la distribution régionale.
    Abstract: Zusammenfassung Die angiographische Darstellung der normalen tiefen Mark-Venen ist nicht als unbedingt pathologisch anzusehen. Ihre Darstellung unter normalen Bedingungen ist von der selektiven Injektion, der Qualität der Röntgenbilder und der Quantität des injizierten Kontrastmittels abhängig. Diese normalen Venen stellen sich in der späten venösen Phase bei zwei Drittel der normalen Carotis-interna-Angiographien dar. Sie sind an den Seitenventrikeln lokalisiert. Die normalen können von pathologischen Venen aufgrund der Zeit der Darsteliung, des Kalibers und der regionalen Zuordnung unterschieden werden.
    Notes: Summary The angiographic demonstration per se of cerebral deep medullary veins does not necessarily indicate abnormality. Their visualization, under normal conditions, depends on the selectivity of injection, the quality of radiographic imaging, and the quantity of contrast material injected. Normal deep medullary veins were recognized in the late venous phase of two-thirds of normal selective internal carotid angiographies; their location most often was adjacent to the atrium and posterior body of the lateral ventricle. Normal and abnormal deep medullary veins can be differentiated in terms of appearance-time, caliber, length and regional distribution.
    Type of Medium: Electronic Resource
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