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  • 1
    Electronic Resource
    Electronic Resource
    Sciatica caused by a dilated epidural vein: MR findings (1999)
    Springer
    European radiology 9 (1999), S. 113-114 
    Details
    ISSN: 1432-1084
    Keywords: Key words: MR imaging ; Spine ; Sciatica ; Varix
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. We report the MR imaging findings in a 41-year-old woman presenting with sudden low back pain and sciatica. At surgery a dilated epidural vein was found compressing the nerve root. The MR findings may suggest the diagnosis. Magnetic resonance imaging of a dilated epidural vein or varix causing sciatica has not been reported until now.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050640
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  • 2
    Electronic Resource
    Electronic Resource
    MRI of non-ischemic vascular disease: aneurysms and vascular malformations (1999)
    Springer
    European radiology 9 (1999), S. 1055-1060 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Cerebral aneurysm ; Cerebral arteriovenous malformations ; MR imaging ; Vascular studies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Due to flow-void phenomena, MRI is of great value in the demonstration of cerebral aneurysms and vascular malformations as well as of related parenchymal changes and hemorrhagic complications. Magnetic resonance angiography can produce vascular images which are of importance in the diagnosis and follow-up of the lesions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050791
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  • 3
    Electronic Resource
    Electronic Resource
    Functional MRI of the brain: localisation of eloquent cortex in focal brain lesion therapy (1998)
    Springer
    European radiology 8 (1998), S. 1573-1580 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Functional imaging ; Brain abnormalities ; MR studies ; Neoplasms ; Image correlation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The aim of this study was to assess the feasibility of functional MRI (fMRI) in a clinical environment on a large patient group, and to evaluate the pretherapeutic value of localisation of eloquent cortex. Forty patients with focal brain lesions of different origin were studied using fMRI. Functional information was obtained using motor, somatosensory, auditory and phonological stimuli depending on the localisation of the lesions. To obtain information about the spatial accuracy of fMRI, the results were compared with postoperative electrocortical stimulation. Two patients with secondary trigeminal neuralgia were scanned using a motor protocol and were implanted with an extradural plate electrode. Imaging was successful in 40 of 42 patients (including the 2 with trigeminal neuralgia). These patients were analysed for strength of activation, the relation of the lesion to activation sites and the presence of mass effect. The correlation between these data and surgical findings provided significant additional clinical information. Functional MRI can be accurately performed in patients with focal brain lesions using a dedicated approach. Functional MRI offers important clinical information as a contribution to a decrease in posttherapeutic morbidity. The accuracy of the technique can be confirmed by other modalities, including invasive cortical electrostimulation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050589
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  • 4
    Electronic Resource
    Electronic Resource
    Cranial CT revisited: do we really need contrast enhancement? (1998)
    Springer
    European radiology 8 (1998), S. 1447-1451 
    Details
    ISSN: 1432-1084
    Keywords: Key words: Brain ; CT ; Contrast
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. The aim of this study was to define guidelines for intravenous contrast administration in cranial CT, as currently there are no recent guidelines based on a large series of patients. In 1900 consecutive patients (1480 adults and 420 children) pre- and post-contrast scan was analysed in order to assess the contribution of contrast enhancement to the diagnosis. The findings were grouped according to whether abnormalities were seen on the pre- and/or post-contrast scan, or whether no abnormalities were seen at all. Sensitivity, specificity, positive predictive value, negative predictive value and accurracy of a pre-contrast scan were used to determine validity. Intravenous contrast enhancement only contributes to the diagnosis if a suspicious abnormality is seen on the unenhanced scan or in the appropriate clinical setting (33.6 %). In the remaining patients (65.6 %) there is no diagnostic contribution, except for a small number of abnormalities (0.8 %). These are often anatomical variants and have no therapeutic impact. The number of contrast-enhanced cranial CT examinations can significantly be reduced by using four general guidelines for contrast administration resulting in considerable cost savings without affecting the quality of service to the patient. These guidelines are defined by the clinical findings/presentation or by the findings on the unenhanced scan. The number of contrast-related complications will be reduced, which may have medicolegal implications. These guidelines can be applied in any radiology department.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050572
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  • 5
    Electronic Resource
    Electronic Resource
    Coincidence of developmental venous anomalies and other brain lesions: a clinical study (1995)
    Springer
    European radiology 5 (1995), S. 495-500 
    Details
    ISSN: 1432-1084
    Keywords: Angioma ; Central nervous system ; Brain ; MRI ; Arteriovenous malformation ; Cerebral
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In a retrospective study of 72 patients with developmental venous anomalies (DVA) diagnosed by MRI and/or angiography, 33 associated lesions were found in 32 patients (44%). Study of the clinical files allowed classification of the patient population into three groups. In group 1 (11 patients: 34%) the symptoms were attributed with certainty to the associated lesions (1 brain infarction, 2 multiple sclerosis patients, 1 case of meningitis, and 7 patients with tumors). In group 2 (9 patients: 28%) the symptoms were probably caused by the associated lesion and not by the associated DVA (1 contusion, 1 Sturge-Weber angiomatosis, and 7 hemorrhagic DVA). In group 3 (12 patients: 38%) the symptoms were nonspecific (10 cavernous angiomas, 1 varix with sinus pericranii, and 1 ectasia of the middle cerebral artery. These findings sustain the theory that DVA is a congenital anomaly of the venous drainage of the brain, without pathological significance, and must be considered as an incidental finding.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00208341
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  • 6
    Electronic Resource
    Electronic Resource
    Book reviews (1996)
    Springer
    European radiology 6 (1996), S. 854-854 
    Details
    ISSN: 1432-1084
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00240689
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Cranial Base Perforation Caused by a Ventriculosubgaleal Shunt (1998)
    Springer
    Acta neurochirurgica 140 (1998), S. 1205-1206 
    Details
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007010050238
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  • 8
    Electronic Resource
    Electronic Resource
    Quiz case of the month (2000)
    Springer
    European radiology 10 (2000), S. 199-200 
    Details
    ISSN: 1432-1084
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003300050035
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  • 9
    Electronic Resource
    Electronic Resource
    Bilateral lumbar intraspinal synovial cysts: Gd-enhanced MRI (1993)
    Springer
    European radiology 3 (1993), S. 471-473 
    Details
    ISSN: 1432-1084
    Keywords: Spine, cysts ; Spine, MR studies ; Synovial membrane, cysts ; Spine, facet joints
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a case of bilateral synovial cysts at L4–L5 level, examined by myelography, computed tomography (CT) and magnetic resonance imaging (MRI). On myelography, the lesions appeared as extradural masses. On CT, the lesions were cystic, with calcifiedd walls and were in close proximity to the facet joints. On MRI, the cystic nature of the lesions was confirmed. The wall appeared hypo-intense both on T1- and T2-weighted images (WI), and enhanced after intravenous administration of Gadolinium-DTPA (Gd-DTPA). This enhancement is thought to represent the peripheral fibrous capsule of the lesion and might be of importance both in the detection and the differential diagnosis of these lesions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00221427
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  • 10
    Electronic Resource
    Electronic Resource
    Cerebrovascular occlusive complications in osteopetrosis major (1990)
    Springer
    Neuroradiology 32 (1990), S. 511-513 
    Details
    ISSN: 1432-1920
    Keywords: Bones, osteochondrodysplasias ; Brain infarction ; Carotid arteries, stenosis or obstruction ; Vertebral arteries, stenosis or obstruction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We report the case of a 16-year-old patient with osteopetrosis major, complaining of transient sensory and motor disturbances in the left upper limb and diziness on changing the position of his head. Selective angiography of the cerebral vessels showed severe narrowing of the internal carotid artery within the petrous carotid canal and in its supraclinoid portion. The cervical vertebral arteries showed multiple stenosis within the vertebral canal. These findings are explained by narrowing of the basal foramina by the osteopetrotic bone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02426467
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