D. N. Louis, H. Ohgaki, O. D. Wiestler, W. K. Cavenee, P. C. Burger et al., WHO classification of tumours of the central nervous system, Acta Neuropathol (Berl), vol.114, pp.97-109, 2007.

J. Spitaels, D. Devriendt, N. Sadeghi, S. Luce, D. Witte et al., Management of supratentorial recurrent low-grade glioma: a multidisciplinary experience in 35 adult patients, Oncol Lett, vol.14, pp.2789-95, 2017.

M. Xu, S. J. See, W. H. Ng, E. Arul, M. F. Back et al., Comparison of magnetic resonance spectroscopy and perfusion-weighted imaging in presurgical grading of oligodendroglial tumors, Neurosurgery, vol.56, pp.919-926, 2005.

S. Oshiro, H. Tsugu, F. Komatsu, H. Abe, H. Onishi et al., Quantitative assessment of gliomas by proton magnetic resonance spectroscopy, Anticancer Res, vol.27, pp.3757-63, 2007.

Y. E. Kuznetsov, Z. Caramanos, S. B. Antel, M. C. Preul, R. Leblanc et al., Proton magnetic resonance spectroscopic imaging can predict length of survival in patients with supratentorial gliomas, Neurosurgery, vol.53, pp.574-576, 2003.

T. Sankar, Y. E. Kuznetsov, R. W. Ryan, Z. Caramanos, S. B. Antel et al., The metabolic epicenter of supratentorial gliomas: a 1H-MRSI study, Can J Neurol Sci J Can Sci Neurol, vol.36, pp.696-706, 2009.

M. J. Van-den-bent, M. Smits, J. M. Kros, and S. M. Chang, Diffuse infiltrating oligodendroglioma and astrocytoma, J Clin Oncol Off J Am Soc Clin Oncol, vol.35, pp.2394-401, 2017.

M. Grech-sollars, B. Vaqas, G. Thompson, T. Barwick, L. Honeyfield et al., An MRS-and PET-guided biopsy tool for intraoperative neuronavigational systems, J Neurosurg, vol.2017, pp.1-7

A. J. Wright, G. Fellows, T. J. Byrnes, K. S. Opstad, D. Mcintyre et al., Pattern recognition of MRSI data shows regions of glioma growth that agree with DTI markers of brain tumor infiltration, Magn Reson Med, vol.62, pp.1646-51, 2009.

Y. Li, X. Liu, F. Wei, D. M. Sima, S. Van-cauter et al., An advanced MRI and MRSI data fusion scheme for enhancing unsupervised brain tumor differentiation, Comput Biol Med, vol.81, pp.121-130, 2017.

F. S. De-edelenyi, C. Rubin, F. Estève, S. Grand, M. Décorps et al., A new approach for analyzing proton magnetic resonance spectroscopic images of brain tumors: nosologic images, Nat Med, vol.6, pp.1287-1296, 2000.

T. R. Mcknight, Proton magnetic resonance spectroscopic evaluation of brain tumor metabolism, Semin Oncol, vol.31, pp.605-622, 2004.

H. Fudaba, T. Shimomura, T. Abe, H. Matsuta, Y. Momii et al., Comparison of multiple parameters obtained on 3T pulsed arterial spin-labeling, diffusion tensor imaging, and MRS and the Ki-67 labeling index in evaluating glioma grading, AJNR Am J Neuroradiol, vol.35, pp.2091-2099, 2014.

S. J. Nelson, A. K. Kadambi, I. Park, Y. Li, J. Crane et al., Association of early changes in 1H MRSI parameters with survival for patients with newly diagnosed glioblastoma receiving a multimodality treatment regimen, Neuro-Oncologia, vol.19, pp.430-439, 2017.

E. Hattingen, P. Raab, K. Franz, H. Lanfermann, M. Setzer et al., Prognostic value of choline and creatine in WHO grade II gliomas, Neuroradiology, vol.50, pp.759-67, 2008.

R. Guillevin, C. Menuel, H. Duffau, M. Kujas, L. Capelle et al., Proton magnetic resonance spectroscopy predicts proliferative activity in diffuse low-grade gliomas, J Neurooncol, vol.87, pp.181-188, 2008.

B. Sellem, D. Waissi, W. Dormishian, M. Bund, C. Dietemann et al., Predictive value of 1 month postoperative MRSI and FDG-PET evaluations of glioblastomas nd, OMICS J Radiol, vol.5, issue.220, 2016.

J. Oh, R. G. Henry, A. Pirzkall, Y. Lu, X. Li et al., Survival analysis in patients with glioblastoma multiforme: predictive value of choline-to-N-acetylaspartate index, apparent diffusion coefficient, and relative cerebral blood volume, J Magn Reson Imaging JMRI, vol.19, pp.546-54, 2004.

C. Hlaihel, L. Guilloton, J. Guyotat, N. Streichenberger, J. Honnorat et al., Predictive value of multimodality MRI using conventional, perfusion, and spectroscopy MR in anaplastic transformation of low-grade oligodendrogliomas, J Neurooncol, vol.97, pp.73-80, 2010.

T. Isobe, H. Akutsu, T. Yamamoto, M. Shiigai, T. Masumoto et al., Usefulness of quantitative H-MR spectroscopy for the differentiation between radiation necrosis and recurrence of anaplastic oligodendroglioma, No Shinkei Geka, vol.39, pp.485-90, 2011.

Q. T. Ostrom, L. Bauchet, F. G. Davis, I. Deltour, J. L. Fisher et al., The epidemiology of glioma in adults: a "state of the science, review. Neuro-Oncol, vol.16, pp.896-913, 2014.

F. Raschke, E. Fuster-garcia, K. S. Opstad, and F. A. Howe, Classification of single-voxel 1H spectra of brain tumours using LCModel, NMR Biomed, vol.25, pp.322-353, 2012.

F. A. Howe, S. J. Barton, S. A. Cudlip, M. Stubbs, D. E. Saunders et al., Metabolic profiles of human brain tumors using quantitative in vivo 1H magnetic resonance spectroscopy, Magn Reson Med, vol.49, pp.223-255, 2003.

W. Hollingworth, L. S. Medina, R. E. Lenkinski, D. K. Shibata, B. Bernal et al., A systematic literature review of magnetic resonance spectroscopy for the characterization of brain tumors, AJNR Am J Neuroradiol, vol.27, pp.1404-1415, 2006.

M. V. Spampinato, J. K. Smith, L. Kwock, M. Ewend, J. D. Grimme et al., Cerebral blood volume measurements and proton MR spectroscopy in grading of oligodendroglial tumors, AJR Am J Roentgenol, vol.188, pp.204-216, 2007.

G. Erb, K. Elbayed, M. Piotto, J. Raya, A. Neuville et al., Toward improved grading of malignancy in oligodendrogliomas using metabolomics, Magn Reson Med, vol.59, pp.959-65, 2008.

C. Majós, J. Bruna, M. Julià-sapé, M. Cos, A. Camins et al., Proton MR spectroscopy provides relevant prognostic information in high-grade astrocytomas, AJNR Am J Neuroradiol, vol.32, pp.74-80, 2011.

J. S. Smith, E. F. Chang, K. R. Lamborn, S. M. Chang, M. D. Prados et al., Role of extent of resection in the long-term outcome of low-grade hemispheric gliomas, J Clin Oncol Off J Am Soc Clin Oncol, vol.26, pp.1338-1383, 2008.

N. Sanai and M. S. Berger, Extent of resection influences outcomes for patients with gliomas, Rev Neurol (Paris), vol.167, pp.648-54, 2011.

N. Sanai and M. S. Berger, Recent surgical management of gliomas, Adv Exp Med Biol, vol.746, pp.12-25, 2012.

C. Bund, Magnetic Resonance Imaging, vol.52, pp.75-83, 2018.