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. 2013 Dec 5;54(4):280–289. doi: 10.2176/nmc.oa2013-0117

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© 2014 The Japan Neurosurgical Society

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/

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Fig. 1 — Graphs showing ¹¹C-methionine (MET)-PET/Gd (A), ¹¹C-choline (CHO)-PET/Gd (C), and ¹⁸F-fluorodeoxyglucose (FDG)-PET/Gd (E) volume ratios, and MET-PET/Gd (B), CHO-PET/Gd (D), and FDG-PET/Gd (F) overlap ratios of radiation necrosis (RN), anaplastic astrocytoma (AA), anaplastic oligodendroglioma (AO), and recurrent glioblastoma (Gr.4). The significant low values (P < 0.05) of both the PET/Gd volume ratio and the PET/Gd overlap ratio of RN compared with glioma recurrence were shown to be characteristic only for MET-PET. *P < 0.05, **P < 0.005, ***P < 0.001.