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  • Magnetic resonance imaging  (17)
  • Oryza sativa  (3)
  • 79.20  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Spontaneous spinal epidural haematomas with repeated remission and relapse (1997)
    Springer
    Neuroradiology 39 (1997), S. 737-740 
    Details
    ISSN: 1432-1920
    Keywords: Key words Epidural haematoma ; Spine ; Magnetic resonance imaging ; Computed tomographic myelography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We present a case of spontaneous spinal epidural haematoma (SSEH) with a rare clinical course of repeated spontaneous recovery and relapse. The patient suffered three episodes of upper-back pain of sudden onset followed by sensory and motor dysfunction after weight lifting. In the first two episodes, the neurological deficits recovered spontaneously and completely. In the last episode, paraplegia persisted even after emergency surgery. Serial studies with computed tomographic (CT) myelography and magnetic resonance imaging (MRI) demonstrated the remitting and relapsing course of the SSEHs. The possible causes of the SSEHs and the mechanisms of spontaneous recovery are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050498
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Enhanced cervical MRI in identifying intracranial dural arteriovenous fistulae with spinal perimedullary venous drainage (1998)
    Springer
    Neuroradiology 40 (1998), S. 393-397 
    Details
    ISSN: 1432-1920
    Keywords: Key words Brain diseases ; Arteriovenous fistula ; Myelopathy ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Diagnosis of an intracranial dural arteriovenous fistula (DAVF) with spinal perimedullary venous drainage is challenging because the presenting symptoms are usually related to dysfunction of the spine, not of the brain. Repeated spinal angiograms are usually performed before the diagnosis is finally made by cerebral angiography. We report two cases of intracranial DAVFs with spinal perimedullary venous drainage. In both cases contrast-enhanced cervical MRI demonstrated dilated lower brainstem and upper spinal veins, which, we believe, is a good indicator of the existence of such drainage. We suggest that, in cases with perimedullary serpentine enhancement on thoracic or lumbar MR images, additional Gd-enhanced cervical spinal MR imaging should be performed. The simple process of tracing the veins upwards may avoid a lot of unnecessary examinations and delay in the diagnosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050609
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Senescence of rice leaves XXIX. Ethylene production, polyamine level and polyamine biosynthetic enzyme activity during senescence
    Amsterdam : Elsevier
    Plant Science 78 (1991), S. 193-198 
    Details
    ISSN: 0168-9452
    Keywords: Oryza sativa ; S-adenosyl-l-methionine decarboxylase ; arginine decarboxylaase ; ethylene ; leaf senescence ; ornithine decarboxylase ; putrescine ; spermidine ; spermine
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0168-9452(91)90198-H
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Trapping and reflection coefficients for3He in Ni at oblique incidence (1983)
    Springer
    Applied physics 31 (1983), S. 37-44 
    Details
    ISSN: 1432-0630
    Keywords: 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The areal density and the depth distribution of3He trapped in Ni as a function of the bombarding fiuence was measured in the energy range of 1–25 keV and at angles of incidence between 0 and 85° using nuclear reaction analysis. At fluences below saturation a linear relation is found between the areal density and the fiuence. From its slope the trapping and reflection coefficients can be determined. The experimental data for trapping and reflection coefficients and for the depth profiles were compared with computer simulation results from the TRIM program. To reduce uncertainties in the absolute values of the experimental trapping coefficients, they were normalized to the TRIM values at normal incidence. The dependence of the measured reflection coefficient on the angle of incidence between 0 and 80° shows good agreement with the calculated data for incident energies from 3 to 25 keV, but for 1 keV the measured reflection coefficients are higher than the calculated ones.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00617186
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Trapping and reflection coefficients for deuterium in graphite at oblique incidence (1984)
    Springer
    Applied physics 33 (1984), S. 265-268 
    Details
    ISSN: 1432-0630
    Keywords: 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Trapping and particle reflection coefficients for 0.4–10keVD on graphite have been measured for angles of incidence 0≦α≦85° by determining the areal density of implanted D as a function of the implanted fluence. The experimental data are compared to computer calculations with the TRIM-program. The agreement between measurement and calculation is good.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00614669
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Optic atrophy and cerebral infarcts caused by methanol intoxication: MRI (1997)
    Springer
    Neuroradiology 39 (1997), S. 192-194 
    Details
    ISSN: 1432-1920
    Keywords: Key words Brain ; Toxic encephalopathy ; Methanol intoxication ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We present the MRI findings of cerebral and optic pathway damage in the acute and subacute stages of methanol intoxication. In the acute stage, CT and MRI showed bilateral haemorrhagic necrosis of the corpus striatum and infarcts in the anterior and middle cerebral arterial territories. MRI in the subacute stage demonstrated atrophy of the optic chiasm and prechiasmatic optic nerves in addition to the cerebral infarcts. The patient survived, with total blindness.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050391
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Balò's concentric sclerosis: MRI (1996)
    Springer
    Neuroradiology 38 (1996), S. 322-324 
    Details
    ISSN: 1432-1920
    Keywords: Demyelinating disease ; Sclerosis ; Brain ; Magnetic resonance imaging ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a case of Balò's concentric sclerosis. In the past, the diagnosis was usually made post mortem. In this case, we found that CT demonstrated only low-density lesions, but not their concentric pattern. However, MRI showed a striking feature, reminiscent of histopathology of Balò's concentric sclerosis, and played an important role in antemortem diagnosis of this rare demyelinating disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00596578
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Balò's concentric sclerosis: MRI (1996)
    Springer
    Neuroradiology 38 (1996), S. 322-324 
    Details
    ISSN: 1432-1920
    Keywords: Key words Demyelinating disease ; Sclerosis ; Brain ; Magnetic resonance imaging ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a case of Balò's concentric sclerosis. In the past, the diagnosis was usually made post mortem. In this case, we found that CT demonstrated only low-density lesions, but not their concentric pattern. However, MRI showed a striking feature, reminiscent of histopathology of Balò's concentric sclerosis, and played an important role in antemortem diagnosis of this rare demyelinating disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00596578
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Primary chiasmal sarcoid granuloma: MRI (1999)
    Springer
    Neuroradiology 41 (1999), S. 440-442 
    Details
    ISSN: 1432-1920
    Keywords: Key words Optic chiasm ; Sarcoidosis ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report MRI findings of a pathologically proven primary sarcoid granuloma of chiasmal origin that mimicked an optic pathway glioma
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050780
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Unilateral congenital cerebral venous dysgenesis (2000)
    Springer
    Neuroradiology 42 (2000), S. 40-42 
    Details
    ISSN: 1432-1920
    Keywords: Key words Veins, cerebral, anomalies ; Angiography ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract I report a 30-year-old woman with congenital cerebral venous dysgenesis with absence of the internal cerebral and basal veins and most of the cortical veins. Unlike the more common bilateral picture, she had involvement only on the left side, which delayed presentation and gave relatively mild symptoms. The embryological mechanism and differential diagnosis of unilateral absence of the internal cerebral, basal and cortical veins are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050010
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    Paper (German National Licenses)
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