AUTHOR=Kumar Manoj , Nanga Ravi Prakash Reddy , Verma Gaurav , Wilson Neil , Brisset Jean Christophe , Nath Kavindra , Chawla Sanjeev 

TITLE=Emerging MR Imaging and Spectroscopic Methods to Study Brain Tumor Metabolism

JOURNAL=Frontiers in Neurology

VOLUME=13

YEAR=2022

URL=https://www.frontiersin.org/journals/neurology/articles/10.3389/fneur.2022.789355

DOI=10.3389/fneur.2022.789355

ISSN=1664-2295

ABSTRACT=<p>Proton magnetic resonance spectroscopy (<sup>1</sup>H-MRS) provides a non-invasive biochemical profile of brain tumors. The conventional <sup>1</sup>H-MRS methods present a few challenges mainly related to limited spatial coverage and low spatial and spectral resolutions. In the recent past, the advent and development of more sophisticated metabolic imaging and spectroscopic sequences have revolutionized the field of neuro-oncologic metabolomics. In this review article, we will briefly describe the scientific premises of three-dimensional echoplanar spectroscopic imaging (3D-EPSI), two-dimensional correlation spectroscopy (2D-COSY), and chemical exchange saturation technique (CEST) MRI techniques. Several published studies have shown how these emerging techniques can significantly impact the management of patients with glioma by determining histologic grades, molecular profiles, planning treatment strategies, and assessing the therapeutic responses. The purpose of this review article is to summarize the potential clinical applications of these techniques in studying brain tumor metabolism.</p>