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  • 1
    Digitale Medien
    Digitale Medien
    Time-resolved two-dimensional thick-slice magnetic resonance digital subtraction angiography in assessing brain tumors (2000)
    Springer
    European radiology 10 (2000), S. 736-744 
    Details
    ISSN: 1432-1084
    Schlagwort(e): Key words: Magnetic resonance angiography ; Digital subtraction angiography ; Two-dimensional Brain tumor ; Gadolinium
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract. The aim of this study was to evaluate clinical applicability of two-dimensional (2D) thick-slice, contrast-enhanced magnetic resonance digital subtraction angiography (MRDSA) with high temporal resolution in diagnosis of brain tumors. Forty-four patients with brain tumors including, 15 meningiomas, 8 gliomas, 6 metastatic tumors, 4 neuromas, and 2 hemangioblastomas, were studied with 2D MRDSA with frame rate approximately 1 s. Images were continuously obtained following the initiation of bolus injection of gadolinium chelates for 40 s and subtraction images were generated in a workstation. We evaluated visualization of normal cranial vessels on MRDSA and compared MRDSA and intra-arterial digital subtraction angiography (IADSA) with regard to hemodynamic information. Large cerebral arteries, all venous sinuses, and most tributaries were clearly visualized. A stain was present in hypervascular tumors including all 15 meningiomas and 2 hemangioblastomas on MRDSA. Presence of a stain demonstrated on MRDSA and that on IADSA coincided in 16 of 20 cases (Spearman rank correlation value was 0.85). The location, shape, and phase of the stain on MRDSA were similar to those on IADSA. Two-dimensional MRDSA with high temporal resolution has a unique ability to demonstrate cerebral hemodynamics, such as IADSA, and can play an important role in assessing brain tumors.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s003300050996
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Effect of cyclosporine therapy on idiopathic membranous nephropathy presented with refractory nephrotic syndrome (2000)
    Springer
    Clinical and experimental nephrology 4 (2000), S. 81-85 
    Details
    ISSN: 1437-7799
    Schlagwort(e): Key words Membranous nephropathy ; Nephrotic syndrome ; Cyclosporine
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Background. Recent studies suggested the possible benefits of cyclosporine (CsA) therapy in patients with membranous nephropathy, although most of these studies were short-term. An uncontrolled retrospective study was undertaken to evaluate the long-term effect of CsA therapy on idiopathic membranous nephropathy presented with refractory nephrotic syndrome. Methods. The subjects were eight patients with idiopathic membranous nephropathy presenting with refractory nephrotic syndrome. All patients had received a course of corticosteroid therapy before CsA therapy, and had not responded to the corticosteroid, including one or two administrations of intravenous methylprednisolone pulse therapy. The CsA doses were adjusted to maintain trough blood level at 100 ng/ml during the first 3 months and then reduced to maintain the level at 50 ng/ml in patients who had responded to partial remission. Results. CsA therapy induced a marked decrease in proteinuria from the first month, and a significant decrease from month 3 and thereafter. The mean serum total protein and albumin levels rose, and total cholesterol fell significantly with CsA therapy. The serum creatinine level was unchanged during CsA therapy. Three patients showed complete remission and two were in partial remission, while three were nephrotic at 12 months of CsA therapy. From 18 to 24 months of CsA therapy, three patients were in complete remission, four were in partial remission, and one patient was nephrotic. There were no side effects of CsA, except for gum hyperplasia and hypertrichosis in one patient. Conclusion. These results suggest that long-term CsA therapy at a low or moderate dose is potentially effective and safe in most nephrotic patients with idiopathic membranous nephropathy refractory to corticosteroid therapy.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/s101570050068
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