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  • 1
    Electronic Resource
    Electronic Resource
    Encephalo-duro-arterio-synangiosis in children with Moyamoya disease (1990)
    Springer
    Acta neurochirurgica 104 (1990), S. 96-102 
    Details
    ISSN: 0942-0940
    Keywords: Moyamoya disease ; surgical treatment ; encephalo-duro-arterio-synangiosis ; advantages and disadvantages
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Encephalo-duro-arterio-synangiosis (EDAS) was done in 16 Japanese children with Moyamoya disease on 22 sides. The results were evaluated clinically, angiographically, and by positron emission computed tomography (PET). Postoperative external carotid angiograms showed a good collateral circulation through EDAS in 72 percent of the treated sides. Two-thirds of the sides examined by PET showed improvement in cerebral blood circulation, particularly at the surgically-treated cortex. Postoperatively the symptoms disappeared in those with good new collateral formation. TIA, RIND, and/or involuntary movement disappaered in 31 percent and partially so in 44 percent 6 months after EDAS. The TIA in the lower limb and/ or involuntary movement persisted in some children. This surgical approach seems applicable particularly for children with the ischaemic type of Moyamoya disease, however, the procedure also has drawbacks. Development of collateral circulation was insufficient in some cases, and the territories of the anterior cerebral artery (ACA) or posterior cerebral artery (PCA) were often not covered, even in those with a good new collateral formation in the middle cerebral arterial (MCA) area.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01842826
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  • 2
    Electronic Resource
    Electronic Resource
    Reoperation for Moyamoya disease refractory to encephalo-duro-arterio-synangiosis (1990)
    Springer
    Acta neurochirurgica 107 (1990), S. 129-132 
    Details
    ISSN: 0942-0940
    Keywords: Moyamoya disease ; surgical treatment ; cases refractory to EDAS ; operative techniques of the second operation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Three cases of Moyamoya disease successfully treated by reoperation are reported with special reference to the operative techniques in the second operation. These children first underwent encephalo-duro-arterio-synangiosis (EDAS). Because two of the three postoperative collateral formations through EDAS were either poor or not present at all and their symptoms remained. Encephalo-myosynangiosis (EMS) was later added in the posterior frontal and/or parietal regions of the same side as the former EDAS. In the remaining one, the collaterals through EDAS were well formed but transient ischaemic attack (TIA) persisted in the lower limb. The collateral to the middle cerebral arterial (MCA) distribution, even though seemingly well formed, was not sufficient to obtain a complete subsidence of the symptoms. In this case encephalo-myo-arteriosynangiosis (EMAS) was later added to the antero-medial frontal region of the same side as the EDAS to form collaterals to the anterior cerebral arterial (ACA) distribution. In all three cases the angiograms after the second operation showed good formation of collaterals, and the symptoms subsided. The causes of poor collateral formation through EDAS and operative techniques for the additional operation for those cases refractory to EDAS are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01405791
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Magnetic resonance imaging in a juvenile type of distal and segmental muscular atrophy of the upper extremities (1994)
    Springer
    European radiology 4 (1994), S. 119-124 
    Details
    ISSN: 1432-1084
    Keywords: MR ; Cervical myelopathy ; Juvenile amyotrophy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Eight patients with a juvenile type of distal and segmental muscular atrophy of the upper extremities (DSMA), a type of cervical flexion myelophathy, were evaluated using MR imaging. In the neutral position there was no spinal cord compression, but in flexion the spinal cord was displaced anteriorly and was compressed by the posterior surfaces or margins of the vertebrae and/or any herniated disks in all cases. In flexion, compression of the cord was exaggerated in seven patients by the anterior displacement of the posterior margin of the thecal sac, which was accompanied by dilated posterior internal vertebral veins. In patients suspected of having DSMA, MR images made in flexion are regarded essential for verifying the diagnosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00231197
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  • 4
    Electronic Resource
    Electronic Resource
    Children with unilateral occlusion or stenosis of the ICA associated with surrounding Moyamoya vessels — “unilateral” Moyamoya disease (1994)
    Springer
    Acta neurochirurgica 131 (1994), S. 196-202 
    Details
    ISSN: 0942-0940
    Keywords: Unilateral Moyamoya disease ; Moyamoya disease ; Akin Moyamoya disease ; unilateral occlusion or stenosis of ICA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The clinical features of 6 children who are probable sufferers of “unilateral” Moyamoya disease are here reported. They showed angiographic findings which were compatible with those of Moyamoya disease, albeit only on one side. They did not, however, show any basic aetiologic factors. The age of onset, the clinical symptoms and the findings of electroencephalography, angiography, and positron emission tomography in these cases were also quite similar to those in the cases of Moyamoya disease except for unilateral involvement. All 6 patients underwent either direct or indirect EC-IC bypass sugery. In 3 children who received encephalo-duro-arteriosynangiosis, an indirect bypass procedure, the collateral circulation was well formed postoperatively. In the follow-up study, 2 of the 6 cases starting with a unilateral lesion developed bilateral involvement later. However, the other 4 cases persisted in showing only unilateral involvement. These 4 cases may suggest the existence of “unilateral” Moyamoya disease in the paediatric age, and it is recommended that such cases be treated similarly to those of bilateral Moyamoya disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01808612
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  • 5
    Electronic Resource
    Electronic Resource
    MR imaging and angiography of cerebral venous angiomas associated with brain tumors (1992)
    Springer
    Neuroradiology 34 (1992), S. 25-29 
    Details
    ISSN: 1432-1920
    Keywords: Venous angioma ; Brain tumor ; Magnetic resonance imaging ; Cerebral angiography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary MR study of 6 patients with concurrent venous angioma and brain tumor revealed that in 2 of the 6 cases, the draining vein of the venous angioma was located near to the tumor and was displaced by the tumor. Two of the 6 venous angiomas were too small to visualize prior to contrast enhancement, but could be detected following administration of Gd-DTPA. Angiography was required for definitive diagnosis of the venous angiomas. When a venous angioma is suspected or is detected incidentally, especially when very near a brain tumor, angiography should be considered before performing surgery to avoid surgical complications. Otherwise, ligation of the vein draining the venous angioma may lead to venous infarction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00588428
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  • 6
    Electronic Resource
    Electronic Resource
    Olivary degeneration after cerebellar or brain stem haemorrhage: MRI (1993)
    Springer
    Neuroradiology 35 (1993), S. 335-338 
    Details
    ISSN: 1432-1920
    Keywords: Olivary degeneration ; Cerebellar haemorrhage ; Brain stem haemorrhage ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Magnetic resonance (MR) images of seven patients with olivary degeneration caused by cerebellar or brain stem haemorrhages were reviewed. In four patients with cerebellar haemorrhage, old haematomas were identified as being located in the dentate nucleus; the contralateral inferior olivary nuclei were hyperintense on proton-density- and T2-weighted images. In two patients with pontine haemorrhages, the old haematomas were in the tegmentum and the ipsilateral inferior olivary nuclei, which were hyperintense. In one case of midbrain haemorrhage, the inferior olivary nuclei were hyperintense bilaterally. The briefest interval from the ictus to MRI was 2 months. Hypertrophic olivary nuclei were observed only at least 4 months after the ictus. Olivary degeneration after cerebellar or brain stem haemorrhage should not be confused with ischaemic, neoplastic, or other primary pathological conditions of the medulla.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00588362
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  • 7
    Electronic Resource
    Electronic Resource
    Intracranial adenoid cystic carcinoma mimicking meningioma: report of two cases (1993)
    Springer
    Neuroradiology 35 (1993), S. 462-465 
    Details
    ISSN: 1432-1920
    Keywords: Adenoid cystic carcinoma ; Meningioma ; Dural tail sign
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Two cases of intracranial adenoid cystic carcinoma mimicking meningioma are reported. In one, MRI showed not only a homogeneously enhancing extra-axial tumour attached to the dura mater of the posterior cranial fossa, but also surrounding dural enhancement, the “dural tail sign”. In the second, CT demonstrated a well-demarcated enhancing extra-axial tumour, indistinguishable from a sphenoid ridge meningioma extending into the orbit. The neuroradiological features of intracranial adenoid cystic carcinoma may thus closely resemble those of meningioma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00602833
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  • 8
    Electronic Resource
    Electronic Resource
    MRI of the brain in chronic carbon monoxide poisoning (1994)
    Springer
    Neuroradiology 36 (1994), S. 399-401 
    Details
    ISSN: 1432-1920
    Keywords: Carbon monoxide poisoning ; Cerebral white matter degeneration ; Cerebral cortical atrophy ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We examined 13 patients with chronic carbon monoxide (CO) poisoning by magnetic resonance imaging (MRI); all of them had been in an explosion in a coal mine 25 years previously. Symmetrical globus pallidus lesions were observed in 12, as was degeneration of the white matter, with focal cortical atrophy. The temporal parietal and occipital lobes were usually affected, the parietooccipital region being the most frequently and extensively damaged. Of the 12 patients with white matter degeneration 7 had definitely asymmetrical cortical and subcortical lesions. There were 6 patients with dilated temporal horns, probably due to atrophy of the hippocampal gyri. A history of CO inhalation and an awareness of the typical distributions of lesions are important for recognition of the effects of CO poisoning, especially when patients are in the chronic stage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00612127
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    Paper (German National Licenses)
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