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Visually Accessible Rembrandt Images (VASARI) is a standardized reporting system for gliomas that combines MRI features (eg, enhancement pattern and location). This meta-analysis found that overall survival is predicted by multifocality, ependymal invasion, and enhancing tumor crossing the midline. However, due to the heterogeneity of studies, IDH mutation prediction remains uncertain.

In this retrospective, single-center cohort study, 141 patients (173 lesions) with a new or increasing contrast-enhancing lesion after radiotherapy with or without chemotherapy were assessed with ASL perfusion. Although ASL performed poorly in differentiating progressive disease from treatment-induced effects in high-grade gliomas within 6 months after radiation therapy, it showed fair performance after this period.