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  • 1
    Electronic Resource
    Electronic Resource
    Glossopharyngeal Neuralgia Associated with a Vascular Loop Demonstrated by Magnetic Resonance Imaging (1998)
    Springer
    Acta neurochirurgica 140 (1998), S. 813-818 
    Details
    ISSN: 0942-0940
    Keywords: Keywords: Glossopharyngeal neuralgia; magnetic resonance; neuro-vascular conflict; vascular decompression.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary  We report two cases of glossopharyngeal neuralgia associated with a vascular loop of the postero-inferior cerebellar artery, diagnosed by magnetic resonance imaging. Reviewing the literature, we found this to be the first report of a magnetic resonance-validated vascular abnormality related to such a condition. One patient was cured by surgical decompression, confirming the role of the abnormal vessel in the pain. As with trigeminal neuralgia, a possible vascular aetiology should be considered in glossopharyngeal neuralgia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007010050183
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Bilateral mesial temporal sclerosis: MRI with high-resolution fast spin-echo and fluid-attenuated inversion-recovery sequences (1999)
    Springer
    Neuroradiology 41 (1999), S. 471-479 
    Details
    ISSN: 1432-1920
    Keywords: Key words Sclerosis ; hippocampal ; Magnetic resonance imaging ; Epilepsy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a retrospective analysis of MRI in 206 patients with intractable seizures and describe the findings in bilateral mesial temporal sclerosis (MTS) on fast spin-echo (FSE) and fast fluid-attenuated inversion-recovery (fFLAIR) sequences. Criteria for MTS were atrophy, signal change and loss of the digitations of the head of the hippocampus. In patients with bilateral MRI signs of MTS, correlation with clinical electro, volumetric MRI data and neuropsychological tests, when available, was performed. Bilateral MTS was observed in seven patients. Bilateral loss of the digitations and signal change on fFLAIR was seen in all seven. In three, bilateral atrophy was obvious. In two patients, mild bilateral atrophy was observed and in two others, the hippocampi were: asymmetrical, with obvious atrophy on only one side. Volumetric data confirmed bilateral symmetrical atrophy in five patients, and volumes were at the lowest of the normal range in the other two. The EEG showed temporal abnormalities in all patients, unilateral in five and bilateral in two. All patients had memory impairment and neuropsychological data confirmed visual and verbal memory deficits; two patients failed the Wada test on both sides. High-resolution T2-weighted FSE and fFLAIR sequences allow diagnosis of bilateral MTS, which has important therapeutic and prognostic implications.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050786
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Temporal lobe epilepsy with varying severity: MRI study of 222 patients (1997)
    Springer
    Neuroradiology 39 (1997), S. 788-796 
    Details
    ISSN: 1432-1920
    Keywords: Key words Temporal lobe epilepsy ; Hippocampal sclerosis ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract MRI was performed in 222 consecutive adult patients with temporal lobe epilepsy of varying severity from January 1991 to May 1993. The diagnosis of hippocampal sclerosis was established visually by three independent observers. The accuracy of visual assessment of hippocampal asymmetry was compared with volumetric measurements. Neuropathological correlations were obtained in 63 patients with refractory seizures. Temporal lobe abnormalities were observed in 180 patients (81 %) as follows: hippocampal sclerosis in 122 (55 %); developmental abnormalities in 16 (7.2 %); tumours in 15 (6.8 %); scars in 11 (5 %); cavernous angiomas in 10 (4.5 %); miscellaneous lesions in 6. MRI was normal or showed unrelated changes in 42 patients (19 %). Visual assessment correctly lateralised hippocampal sclerosis in 79 of the 84 patients measured (94 %). Temporal lobectomy confirmed the MRI data (side and aetiology) in all 63 operated patients. Patients with normal MRI had an older age of seizure onset and were more often drug-responsive than patients with hippocampal sclerosis. MRI showed temporal lobe abnormalities in 81 % of epileptic patients with varying severity with good neuropathological correlation. Patients with normal MRI had a less severe form of the disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050507
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  • 4
    Electronic Resource
    Electronic Resource
    MRI of pituitary adenomas in acromegaly (1997)
    Springer
    Neuroradiology 39 (1997), S. 394-399 
    Details
    ISSN: 1432-1920
    Keywords: Key words Pituitary adenoma ; Acromegaly ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Adenomas causing acromegaly represent at least a quarter of pituitary adenomas. We studied 12 patients presenting with active acromegaly due to a pituitary adenoma with a 1.5 T superconductive MRI unit. All had T1-weighted sagittal and coronal sections before and after Gd-DTPA; six had coronal T2-weighted images. Surgical correlation was obtained in seven patients. Histologically, there were eight growth hormone (GH)-secreting and three mixed [GH and prolactin (PRL) secreting] adenomas, and one secreting GH, PRL and follicle-stimulating hormone. Macroadenomas (10) were more frequent than microadenomas (2). No correlation was found between serum GH and tumour size. There were nine adenomas in the lateral part of the pituitary gland; seven showed lateral or infrasellar invasion. Homogeneous, isointense signal on T1- and T2-weighted images was observed in six cases. Heterogeneous adenomas had cystic or necrotic components.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050431
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  • 5
    Electronic Resource
    Electronic Resource
    Long-term MR follow-up of cerebral lesions in neuro-Behçet's disease (1996)
    Springer
    Neuroradiology 38 (1996), S. 761-768 
    Details
    ISSN: 1432-1920
    Keywords: Key words Brain ; magnetic resonance imaging ; Behçet's disease ; Brain ; vasculitis ; Brain ; white matter
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract To study the long-term evolution of cerebral lesions in neuro-Behçet's disease, MRI was carried out on 12 patients, with follow-up from 1.5 to 6 years (mean 3.5 years). On the first MRI, 66 lesions in all were found; each patient had 1–10 lesions (mean 5.5). There were 30 (46 %) lesions in the brain stem, 18 (27 %) in the basal ganglia region and 18 (27 %) in the periventricular white matter. Of these 22 (33 %) were small, 31 (47 %) medium-size and 13 (20 %) large lesions. On the last MRI, 60 lesions were found; each patient had 1–10 lesions (mean 5). At this time 31 lesions (52 %) were in the brain stem, 13 (22 %) in the basal ganglia region and 16 (26 %) in the periventricular white matter. There were 41 (68 %) small, 13 (22 %) medium-size and 6 (10 %) large lesions. About 40 % of the lesions disappeared, 35 % reduced in size and 25 % remained unchanged. No lesion had enlarged. Of the 60 final lesions 20 (34 %) were not observed on the first study. Small new lesions were found in 5 of 12 patients (42 %), and were asymptomatic. Medium-size or large new lesions were found in 2 patients (17 %) who had stopped steroid treatment and had a neurological relapse. Enlargement of the ventricular system or worsening of initial cerebral atrophy was observed in 9 of 12 patients. Appearance of small lesions and worsening of cerebral atrophy on long-term follow-up suggest the possibility of subclinical progression of cerebral vasculitis and should be considered in the prognosis of neuro-Behçet's disease.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050343
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    Paper (German National Licenses)
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