Proton MR Spectroscopy Provides Relevant Prognostic Information in High-Grade Astrocytomas
نویسندگان
چکیده
منابع مشابه
Proton MR spectroscopy provides relevant prognostic information in high-grade astrocytomas.
BACKGROUND AND PURPOSE There is a large range of survival times in patients with HGA that can only be partially explained by histologic grade and clinical aspects. This study aims to retrospectively assess the predictive value of single-voxel (1)H-MRS regarding survival in HGA. MATERIALS AND METHODS Pretreatment (1)H-MRS in 187 patients with HGA produced 180 spectra at STE (30 ms) and 182 at ...
متن کاملComparison of perfusion, diffusion, and MR spectroscopy between low-grade enhancing pilocytic astrocytomas and high-grade astrocytomas.
BACKGROUND AND PURPOSE The differentiation of pilocytic astrocytomas and high-grade astrocytomas is sometimes difficult. There are limited comparisons in the literature of the advanced MR imaging findings of pilocytic astrocytomas versus high-grade astrocytomas. The purpose of this study was to assess the MR imaging, PWI, DWI, and MR spectroscopy characteristics of pilocytic astrocytomas compar...
متن کاملComparison of Perfusion, Diffusion, andMR Spectroscopy between Low-Grade Enhancing Pilocytic Astrocytomas and High-Grade Astrocytomas
BACKGROUNDAND PURPOSE: The differentiation of pilocytic astrocytomas and high-grade astrocytomas is sometimes difficult. There are limited comparisons in the literature of the advanced MR imaging findings of pilocytic astrocytomas versus high-grade astrocytomas. The purpose of this study was to assess the MR imaging, PWI, DWI, and MR spectroscopy characteristics of pilocytic astrocytomas compar...
متن کاملPrognostic value of perfusion MR imaging of high-grade astrocytomas: long-term follow-up study.
BACKGROUND AND PURPOSE Although the prognostic value of perfusion MR imaging in various gliomas has been investigated, that in high-grade astrocytomas alone has not been fully evaluated. The purpose of this study was to evaluate retrospectively whether the tumor maximum relative cerebral blood volume (rCBV) on pretreatment perfusion MR imaging is of prognostic value in patients with high-grade ...
متن کاملMR of recurrent high-grade astrocytomas after intralesional immunotherapy.
PURPOSE To describe the MR findings in six patients with recurrent cerebral astrocytomas before, immediately after, and 3 months after local immunotherapy with tumor-infiltrating lymphocytes and interleukin-2. METHODS Contrast-enhanced MR studies were obtained in six patients (three with anaplastic astrocytoma and three with glioblastoma multiforme) at the time of tumor recurrence, after a se...
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ژورنال
عنوان ژورنال: American Journal of Neuroradiology
سال: 2010
ISSN: 0195-6108,1936-959X
DOI: 10.3174/ajnr.a2251