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  • 1
    Electronic Resource
    Electronic Resource
    Magnetic resonance imaging of the intracranial epidermoid (1989)
    Springer
    Acta neurochirurgica 101 (1989), S. 108-111 
    Details
    ISSN: 0942-0940
    Keywords: Epidermoid ; intracranial ; CT ; MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Magnetic resonance imaging (MRI) was performed in five cases of intracranial epidermoid. In three of the five patients, the lowdensity mass on the CT scans showed as low intensity on the T1 and high intensity on the T2 weighted images. In the two other patients, the masses with high or isodensity on CT showed as high intensity on the T1 weighted images and as high or low intensity on the T2 weighted images. Thus, the intensity of epidermoid on MRI correlated fairly well with the CT density, although the former was more variable. The variety of intensities on MRI reflects differences in the chemical composition of the components in the epidermoid tissue in addition to differences in the solid and liquid state of the tissue. An epidermoid could have similar MRI findings as an arachnoid cyst with regard to intensities but its irregular margin provides a useful guide for differentiation. As in other tumours, MRI is superior for evaluation of the size and the extent of the epidermoid as well as the displacement of important neurovascular structures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01410523
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Magnetic resonance imaging distinguishes progressive supranuclear palsy from multiple system atrophy (2000)
    Springer
    Journal of neural transmission 107 (2000), S. 1427-1436 
    Details
    ISSN: 1435-1463
    Keywords: Keywords: Brain ; MRI ; PSP ; MSA ; parkinsonism.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary. To establish diagnostic magnetic resonance imaging (MRI) criteria for differentiating progressive supranuclear palsy (PSP) from multiple system atrophy (MSA), magnetic resonance images from eight patients with probable PSP, 30 with probable MSA {nine striatonigral degeneration (MSA-P) and 21 olivopontocerebellar atrophy (MSA-C)}, and ten age-matched controls were retrospectively studied. Anteroposterior diameters in the midline sagittal T1-weighted image of the rostral (RMT) and caudal midbrain tegmentum (CMT), caudal pons and medulla were measured. Divergence of the red nuclei (RN) in the axial T2-weighted image was judged. All PSP images had a smaller RMT diameter than the lower limit of the normal range, showed RN divergence, and had a pontine diameter within the normal range. All MSA images had a CMT diameter within the normal range; no MSA images showed divergence of RN. Forty-four percent (4/9) of MSA-P and 76% (16/21) of MSA-C images had a pontine diameter smaller than the lower limit of the normal range. On basis of the results, we propose MRI diagnostic criteria for differentiating PSP from MSA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007020070006
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    A case of achondroplasia with downward displacement of the brain stem (1995)
    Springer
    Neuroradiology 37 (1995), S. 293-294 
    Details
    ISSN: 1432-1920
    Keywords: MRI ; Chiari malformation ; Achondroplasia ; Arachnoid cyst
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a case of achondroplasia with downward displacement of the brain stem. Although upward displacement and anterior angulation deformity of the brain stem are common findings in achondroplasia, they were not observed in this case, because of a coexistent Chiari malformation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00588337
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Spinal metastasis from occult intracranial germinoma mimicking primary intramedullary tumour (1994)
    Springer
    Neuroradiology 36 (1994), S. 137-138 
    Details
    ISSN: 1432-1920
    Keywords: Germinoma ; Spinal metastasis ; Intramedullary tumour ; Radiotherapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a patient who initially presented with an intramedullary spinal tumour and developed an intracranial germinoma 3.5 years later. The original spinal tumour was thought to be a metastasis from the germinoma, occult at that time.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00588080
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    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    A case of achondroplasia with downward displacement of the brain stem (1995)
    Springer
    Neuroradiology 37 (1995), S. 293-294 
    Details
    ISSN: 1432-1920
    Keywords: Key words MRI ; Chiari malformation ; Achondroplasia ; Arachnoid cyst
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a case of achondroplasia with downward displacement of the brain stem. Although upward displacement and anterior angulation deformity of the brain stem are common findings in achondroplasia, they were not observed in this case, because of a coexistent Chiari malformation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00588337
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    MR T2-weighted image of subacute cerebral infarct can be isointense to the surrounding brain: MR fogging in cerebral infarct (1994)
    Springer
    Magnetic resonance materials in physics, biology and medicine 2 (1994), S. 539-544 
    Details
    ISSN: 1352-8661
    Keywords: brain ; infarction ; hemorrhage ; NMR ; MR
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Physics
    Notes: Abstract Cerebral infarcts initially showing as markedly hyperintense on magnetic resonance (MR)T 2-weighted images decreased in intensity and became nearly isointense to normal brain tissue in subsequent MR studies. This MR fogging was observed in 7 (23%) out of 31 cases of cortical infarct and 4 (20%) out of 20 cases of perforator infarct in the second to sixth weeks of the disease. In all fogging cases, significant contrast enhancement (CE) was seen in the fogging area after intravenous administration of MR contrast agent. The CE study is recommended in MR of cerebral infarct during the subacute and early chronic stage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01766089
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    Paper (German National Licenses)
    Fulltext
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