Analysis of the effect of the paramagnetic contrast in the amplitude and width of the metabolite peaks using multivoxel spectroscopy in patients with intracranial tumors / "Estudo do efeito do contraste paramagnético na amplitude e largura dos picos dos metabólitos na espectroscopia com múltiplos volumes de interesse em pacientes com tumores intracranianos"

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

In order to evaluate the gadolinium effect on the metabolites choline (CHO), creatine (CRE) and N-acetyl-aspartate (NAA) we performed multivoxel spectroscopy in 25 patients with intracranial tumors before and after the injection of the contrast material. The metabolite ratios CHO/CRE, CHO/NAA and NAA/CRE and the peak width at half height of the metabolites were calculated and compared between the pre and post contrast spectra. Measurements showed reduction of the CO/CRE and CO/NAA ratios and of the NAA width after the administration of the contrast material

ASSUNTO(S)

magnetic resonance spectroscopy colina gadolÍnio espectroscopia de ressonÂncia magnÉtica creatina creatine meios de contraste choline brain neoplasms gadolinium neoplasias cerebrais contrast media gadolÍnio dtpa gadolinium dtpa

ACESSO AO ARTIGO

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