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Abstract #2396

Lactate and total choline show potential prognostic values in diffuse intrinsic pontine glioma

Esther Pavao1,2, Ritambhar Burman1, Andrew Burns1,3, Shubo Wang1, Soniya Pinto1, Silu Zhang1, Matthew Scoggins1, Laura Sanchez-Hernandez1, and Puneet Bagga1
1Diagnostic Imaging, St. Jude Children's Research Hospital, Memphis, TN, United States, 2Biomedical Engineering, University of Memphis, Memphis, TN, United States, 3Biomedical Engineering, University of Alabama, Birmingham, AL, United States

Synopsis

Keywords: Tumors (Pre-Treatment), Cancer, metabolism, spectroscopy

Motivation: Metabolic mapping in Diffuse intrinsic pontine glioma (DIPG) may indicate prognosis and potential therapeutic targets.

Goal(s): We intended to identify metabolic ratios that indicated dysregulated metabolic pathways using 1H-MRS and determine whether these metabolites are associated with overall survival length.

Approach: We performed CSI in patients with DIPG prior to radiation therapy. Then we assessed the predictive value of a metabolite ratio for patient overall survival.

Results: Lactate and total choline levels were found to be significantly associated with patient overall survival, making them potential prognostic predictors of overall survival in DIPG.

Impact: This study shows that more aggressive DIPGs are metabolically distinct from less aggressive tumors and that the metabolic differences can predict the overall survival of patients.

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