Journal
NMR IN BIOMEDICINE
Volume 36, Issue 6, Pages -Publisher
WILEY
DOI: 10.1002/nbm.4785
Keywords
Amine CEST; Brain Tumor; CEST EPI; Glioblastoma; pH Imaging; Treatment Response
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Amine-weighted CEST MRI is a valuable imaging technique for brain tumors, sensitive to changes in amino acids and pH, and has the potential to greatly impact patients by understanding vulnerabilities in the tumor microenvironment and providing complementary value to conventional and exploratory therapies.
Amine-weighted chemical exchange saturation transfer (CEST) magnetic resonance imaging (MRI) is particularly valuable as an amine- and pH-sensitive imaging technique in brain tumors, targeting the intrinsically high concentration of amino acids with exchangeable amine protons and reduced extracellular pH in brain tumors. Amine-weighted CEST MRI contrast is dependent on the glioma genotype, likely related to differences in degree of malignancy and metabolic behavior. Amine-weighted CEST MRI may provide complementary value to anatomic imaging in conventional and exploratory therapies in brain tumors, including chemoradiation, antiangiogenic therapies, and immunotherapies. Continual improvement and clinical testing of amine-weighted CEST MRI has the potential to greatly impact patients with brain tumors by understanding vulnerabilities in the tumor microenvironment that may be therapeutically exploited.
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