Advanced imaging in adult diffusely infiltrating low-grade gliomas.

Clicks: 344
ID: 72067
2019
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Abstract
The adult diffusely infiltrating low-grade gliomas (LGGs) are typically IDH mutant and slow-growing gliomas having moderately increased cellularity generally without mitosis, necrosis, and microvascular proliferation. Supra-total resection of LGG significantly increases the overall survival by delaying malignant transformation compared with a simple debulking so accurate MR diagnosis is crucial for treatment planning. Data from meta-analysis support the addition of diffusion and perfusion-weighted MR imaging and MR spectroscopy in the diagnosis of suspected LGG. Typically, LGG has lower cellularity (ADC), angiogenesis (rCBV), capillary permeability (K), and mitotic activity (Cho/Cr ratio) compared to high-grade glioma. The identification of 2-hydroxyglutarate by MR spectroscopy can reflect the IDH status of the tumor. The initial low ADC, high rCBV, and K values are consistent with the poor prognosis. The gradual increase in intratumoral Cho/Cr ratio and rCBV values are well correlated with tumor progression. Besides MR-based technical artifacts, which are minimized by the voxel-based assessment of data obtained by histogram analysis, the problems derived from the diversity and the analysis of imaging data should be solved by using artificial intelligence techniques. The quantitative multiparametric MR imaging of LGG can either improve the diagnostic accuracy of their differential diagnosis or assess their prognosis.
Reference Key
bulakbasi2019advancedinsights Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Bulakbaşı, Nail;Paksoy, Yahya;
Journal insights into imaging
Year 2019
DOI
10.1186/s13244-019-0793-8
URL
Keywords
Magnetic resonance imaging astrocytoma (grade ii) oligodendroglioma (adult)

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