RESUMEN
Magnetic resonance imaging (MRI) is the leading method of radiation diagnosis of brain tumors. In conditions of the artificial contrast enhancement there are more clearly differentiated the boundaries of the tumor node on the back of peritumorous edema and identified structural features of the tumor. The purpose of this study was to examine indicators of the dynamics of accumulation and removal of contrast agents by brain tumors in MRI technique with dynamic contrast and identify opportunities of this method in the differential diagnosis of various types of tumors.
Asunto(s)
Neoplasias Encefálicas/diagnóstico , Medios de Contraste , Imagen por Resonancia Magnética/métodos , Adulto , Anciano , Astrocitoma/diagnóstico , Encefalopatías/diagnóstico , Neoplasias Encefálicas/patología , Neoplasias Encefálicas/cirugía , Craneofaringioma/diagnóstico , Quistes/diagnóstico , Diagnóstico Diferencial , Femenino , Glioblastoma/diagnóstico , Humanos , Masculino , Meningioma/diagnóstico , Persona de Mediana Edad , Neurilemoma/diagnóstico , Glándula Pineal/patología , Pinealoma/diagnóstico , Neoplasias Hipofisarias/diagnósticoRESUMEN
1035 patients of suspected brain formations have been examined in a low-field magnetic resonance tomography (MPT) study. Various patterns of brain tumors were identified in 772 cases and diagnosis was verified by other procedures. Among the most frequent were neuro-epithelial tumors (157), meningiomas (161) and metastatic lesions (136). The MRT technique condition suggest histological pattern. Although less expensive and easier to service, low-field MRT's yield as much information for brain tumor diagnosis as medium- and high-field tomographs do.
