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  • Magnetic resonance imaging  (8)
  • CT  (3)
  • AIDS  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Traumatic lumbosacral nerve root meningoceles (1989)
    Springer
    Neuroradiology 31 (1989), S. 425-429 
    Details
    ISSN: 1432-1920
    Keywords: Nerve root avulsion ; Traumatic meningocele ; CT ; Myelography ; MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A case of traumatic lumbar meningoceles at four levels in combination with total and partial nerve root avulsion and with perservation of a nerve root is reported. Several diagnostic imaging techniques (myelography, CT, myelo-CT and MRI) are compared and their value in demonstrating the continuity of the nerve roots is discussed. MRI could assess the continuity of a nerve root in a traumatic meningocele, not demonstrable by myelography or myelo-CT. The combination of myelography, myelo-CT and MRI is likely to provide a complete diagnostic evaluation of nerve root lesions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00343868
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Cerebral ganglioglioma and neurofibromatosis type I (1991)
    Springer
    Neuroradiology 33 (1991), S. 357-359 
    Details
    ISSN: 1432-1920
    Keywords: Ganglioglioma ; Neurofibromatosis ; Computed tomography ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We report the occurrence of a left frontal lobe ganglioglioma in a patient with neurofibromatosis type I (von Recklinghausen's disease) and conclude that the occurrence of a cerebral ganglioglioma in a patient with neurofibromatosis must probably be considered coincidental.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00587825
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Gd-DTPA-enhanced MR in thoracic disc herniations (1989)
    Springer
    Neuroradiology 31 (1989), S. 75-79 
    Details
    ISSN: 1432-1920
    Keywords: Thoracic disc herniation ; Spine, intervertebral discs ; Spine, MR studies ; Spinal cord, compression ; Contrast media ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The Gd-DTPA-enhanced magnetic resonance findings in two patients with herniated thoracic intervertebral discs are reported. The first patient was a 56-year-old woman with a small subligamentous T6-7 disc herniation, slightly lateralized to the right. The second patient was a 51-year-old man with a central and right posterolateral disc herniation, including a large calcified fragment, at the T8-9 level. The nonenhanced MR examination revealed the presence of an extradural mass lesion in both patients, impinging upon the dural sac and compressing and displacing the spinal cord posteriorly. The lesion was slightly hypointense on both T1- and T2-weighted spin echo sequences. Following intravenous injection of Gd-DTPA in a dosage of 0.1 mmol/kg body weight, enhancement of the posterior longitudinal ligament was noted and triangular areas of contrast uptake were seen to occur in the epidural space above and below the herniated disc. At surgery, they were found to correspond to dilated and congested epidural veins.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00342035
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Nervous system manifestations and neuroradiologic findings in acquired immunodeficiency syndrome (AIDS) (1989)
    Springer
    Neuroradiology 31 (1989), S. 33-39 
    Details
    ISSN: 1432-1920
    Keywords: AIDS ; Central nervous system ; CT ; MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We report a series of thirteen patients with nervous system complications out of a total of thirty AIDS patients admitted to our hospital over the last two years for which CT and/or MRI have been performed. Five were homosexual men and eight patients (5 men, 3 women) were of African origin (Zaïre and Rwanda) (n=5) or had had sexual intercourse with the local African population (n=3). The nervous system complications encountered included: toxoplasma gondii brain abscess (2 patients); cryptococcus neoformans meningitis+toxoplasmosis (1 patient); toxoplasmosis+lymphoma (2 patients); progressive multifocal leucoencephalopathy (1 patient); lymphocytic meningitis or encephalitis (3 patients); lymphoma (1 patient); polyradiculoneuritis (3 patients). Three of thirteen patients had multiple intracranial abnormalities: one had concomitant intraparenchymal toxoplasma abscess and cryptococcal meningitis; in one patient a lymphoma developed after the successful medical treatment of a toxoplasma abscess; conversely, one patient developed a toxoplasma abscess two years after mediastinal radiotherapy for a systemic non-Hodgkin lymphoma. In conclusion, in our experience, nervous system toxoplasmosis is the most frequent AIDS related CNS complication. Our series demonstrates the high frequency of a second neurological disease occurring either concomitantly or separately. In these cases, while CT may readily identify the intracranial abnormalities, it contributes little towards an etiological diagnosis. Finally, our series illustrates the importance of a central African endemic focus for AIDS.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00342027
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    The value of MRI in the diagnosis of postoperative spondylodiscitis (2000)
    Springer
    Neuroradiology 42 (2000), S. 580-585 
    Details
    ISSN: 1432-1920
    Keywords: Key words Spine ; surgery ; Infection ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We evaluated the role of MRI in the diagnosis of postoperative spondylodiscitis. Spondylodiscitis is a serious complication of surgery, and the diagnosis frequently depends on a combination of clinical, laboratory and imaging findings. We compared the MRI findings in six patients with biopsy- or surgery-proven spondylodiscitis with those in 38 asymptomatic postoperative patients. Contrast enhancement and signal changes in the intervertebral disc or the vertebral endplates are not specific for spondylodiscitis, being also seen in the asymptomatic patients. However, absence of Modic type 1 changes, of contrast enhancement of the disc or of enhancing paravertebral soft tissues suggests that the patient does not have spondylodiscitis. MRI appears more useful for exclusion than for confirmation of postoperative spondylodiscitis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340000361
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Deep cerebral invasion by basal cell carcinoma of the scalp (1996)
    Springer
    Neuroradiology 38 (1996), S. 575-577 
    Details
    ISSN: 1432-1920
    Keywords: Key words Carcinoma ; basal cell ; Magnetic resonance imaging ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report recurrent basal cell carcinoma of the scalp with deep cerebral invasion in an 82-year-old man. Plain films and CT showed extensive, full thickness, skull destruction at the vertex. Gadolinium-enhanced MRI revealed neoplastic invasion of the meninges and left cerebral hemisphere, down to the lateral ventricle. We postulate that tumour extended into the brain along perivascular spaces of transcerebral vessels. This hypothesis is supported by the cleft-like contrast enhancement on MRI.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00626103
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Deep cerebral invasion by basal cell carcinoma of the scalp (1996)
    Springer
    Neuroradiology 38 (1996), S. 575-577 
    Details
    ISSN: 1432-1920
    Keywords: Carcinoma, basal cell ; Magnetic resonance imaging ; Computed tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report recurrent basal cell carcinoma of the scalp with deep cerebral invasion in an 82-year-old man. Plain films and CT showed extensive, full thickness, skull destruction at the vertex. Gadolinium-enhanced MRI revealed neoplastic invasion of the meninges and left cerebral hemisphere, down to the lateral ventricle. We postulate that tumour extended into the brain along perivascular spaces of transcerebral vessels. This hypothesis is supported by the cleft-like contrast enhancement on MRI.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00626103
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Clinical usefulness of contrast-enhanced MP-RAGE of the brain (1996)
    Springer
    Neuroradiology 38 (1996), S. S14 
    Details
    ISSN: 1432-1920
    Keywords: Key words Brain ; Magnetic resonance imaging ; techniques ; Magnetic resonance imaging ; contrast enhancement ; Three-dimensional imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Our purpose was to evaluate the usefulness of a 3D T1-weighted gradient-echo sequence (MP-RAGE) in clinical practice. We prospectively examined 200 patients with a variety of neurological disorders and symptoms. We compared lesion conspicuity and contrast enhancement on MP-RAGE images with conventional gadolinium-enhanced spin-echo (SE) T1-weighted images. Both the original MP-RAGE data and the reformatted images were characterised by improved differentiation between grey and white matter. More lesions were found on the 3D series, in both patients with neoplastic and non-neoplastic disease. Contrast enhancement of small oedematous lesions affecting the white matter in demyelinating disease was less obvious. Multiplanar reformatting, which can be realised in any desired plane and surface rendering with sophisticated segmentation algorithms superbly displayed the underlying anatomical relationships between lesions and normal brain structures. Excellent spatial resolution, the absence of posterior fossa artefacts and equivalent contrast enhancement resulted in an increased number of space-occupying lesions being found on the MP-RAGE images. Thus contrast-enhanced MP-RAGE is an alternative to conventional SE imaging in the investigation of intracranial masses. Although the total number of lesions found in patients with demyelinating disease was significantly higher on MP-RAGE, demonstration of blood-brain-barrier breakdown in active lesions was less obvious.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050911
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    MRI after successful lumbar discectomy (1996)
    Springer
    Neuroradiology 38 (1996), S. S90 
    Details
    ISSN: 1432-1920
    Keywords: Key words Spine ; Intervertebral discs ; Magnetic resonance imaging ; Spinal surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Our aim was to establish the normal range of MRI findings after successful lumbar discectomy. We prospectively examined 34 consecutive patients with an excellent clinical outcome by MRI 6 weeks and 6 months after surgery. All examinations included sagittal and axial spin-echo (SE) T1-weighted images before and after intravenous gadolinium-DTPA and fast SE T2-weighted images. Contrast enhancement along the surgical tract was seen in all patients 6 weeks and 6 months after surgery. After 6 months minimal or no mass effect on the dural sac by epidural scar was seen. In 20 % of patients there was recurrent disc herniation, with mass effect. Enhancing nerve roots were seen in 20 % of patients 6 weeks postoperatively, and half of these were associated with recurrent disc herniation at the same side. None of these patients still showed nerve root enhancement 6 months after surgery. Postoperative MRI studies must be interpreted with great care since the features described in the failed back surgery syndrome are also found, to some extent, in asymptomatic postoperative patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050929
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    MRI after successful lumbar discectomy (1996)
    Springer
    Neuroradiology 38 (1996), S. S90 
    Details
    ISSN: 1432-1920
    Keywords: Spine ; Intervertebral discs ; Magnetic resonance imaging ; Spinal surgery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Our aim was to establish the normal range of MRI findings after successful lumbar discectomy. We prospectively examined 34 consecutive patients with an excellent clinical outcome by MRI 6 weeks and 6 months after surgery. All examinations included sagittal and axial spin-echo (SE) T1-weighted images before and after intravenous gadolinium-DTPA and fast SE T2-weighted images. Contrast enhancement along the surgical tract was seen in all patients 6 weeks and 6 months after surgery. After 6 months minimal or no mass effect on the dural sac by epidural scar was seen. In 20% of patients there was recurrent disc herniation, with mass effect. Enhancing nerve roots were seen in 20% of patients 6 weeks postoperatively, and half of these were associated with recurrent disc herniation at the same side. None of these patients still showed nerve root enhancement 6 months after surgery. Postoperative MRI studies must be interpreted with great care since the features described in the failed back surgery syndrome are also found, to some extent, in asymptomatic postoperative patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02278130
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    Paper (German National Licenses)
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