Ontology type: schema:ScholarlyArticle
2002-09-14
AUTHORSA. Scherer, H.-J. Wittsack, C. Strupp, N. Gattermann, R. Haas, U. Mödder
ABSTRACT. The objective of this study was to evaluate dynamic contrast-enhanced magnetic resonance imaging (d-MRI) as a prognostic indicator of lumbar vertebral fractures in patients with multiple myeloma. d-MRI of the lumbar spine was performed in ten patients with multiple myeloma. A fast gradient echo sequence (turbo fast low-angle shot, two-dimensional) was used, together with controlled bolus injection of gadolinium diethylenetriaminepentaacetic acid (Gd-DTPA). The maximum increase in signal intensity [amplitude (A), arbitrary units (a.u.)] was assessed for each lumbar vertebra. About half a year later (median: 6.2 months) magnetic resonance imaging was repeated to detect new fractures. Amplitudes of vertebrae which fractured after the initial d-MRI were compared with amplitudes of vertebrae which did not fracture during follow-up. Six of ten patients (7 of 50 lumbar vertebrae) showed new fractures. Five patients fractured one vertebra each, whereas one patient had several vertebrae involved. The initial d-MRI showed significantly higher amplitudes (p<0.0001) in those vertebrae that subsequently fractured (A: 33.1±8.1 vs 16.7±4.2). On retrospective analysis, a cutoff level of 25 a.u. discriminated without overlap between vertebrae that fractured during follow-up and those which did not. The maximum increase in signal intensity (the amplitude) on d-MRI appears to be a prognostic marker capable of predicting vertebral fractures of the lumbar spine in patients with multiple myeloma. d-MRI may therefore be helpful in identifying patients who might benefit from localized radiation therapy or surgical intervention. More... »
PAGES517-521
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DOIhttp://dx.doi.org/10.1007/s00277-002-0532-x
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PUBMEDhttps://www.ncbi.nlm.nih.gov/pubmed/12373353
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