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Abstract #1857

Hyperpolarized 13C MRS acceleration via SABRE-Hyperpolarization and a DIY perfusion system

Philipp Ralf Gross1,2, Stefan Petersen3, Henri de Maissin1,4, Eduard Y. Chekmenev5, Maxim Zaitsev3, Henning J. Jessen6, Leif Schröder7, Thomas Reinheckel4,8, Robert Zeiser4,8, Olaf Groß4,8, and Andreas B. Schmidt1,4,5
1Radiology - Medical Physics, University Medical Center Freiburg, Freiburg im Breisgau, Germany, 22. German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany, 3University Medical Center Freiburg, Freiburg im Breisgau, Germany, 4German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany, 5Wayne State University, Detroit, MI, United States, 6Albert-Ludwigs-University of Freiburg, Freiburg im Breisgau, Germany, 7German Cancer Research Center (DKFZ), Heidelberg, Germany, 8Faculty of Medicine, University of Freiburg, Freiburg, Germany

Synopsis

Keywords: Hyperpolarized MR (Non-Gas), Perfusion

Motivation: Hyperpolarized (HP) in vitro MRS procedures have limited throughput e.g. for drug effect monitoring and longitudinal studies.

Goal(s): Our Objective is to facilitate longitudinal HP in vitro MRS studies through rapid delivery of hyperpolarized molecules and integration of a cost-effective, continuous-flow perfusion system.

Approach: We have merged fast 13C SABRE-Hyperpolarization of [1-13C]-pyruvate-d3 with a, budget friendly DIY system, allowing for continuous NMR tube perfusion and batch-mode injection of hyperpolarized agents.

Results: Our work demonstrates the successful detection of multiple highly polarized pyruvate injections at repetition times as short as 6 minutes, holding potential for HP agent development and studying cell metabolism under therapies.

Impact: By combining rapid 13C agent hyperpolarization through SABRE with a cost-effective DIY perfusion system, our approach significantly increases the throughput and temporal resolution of hyperpolarized 13C MRS, unlocking new avenues for imaging agent development, metabolic studies and drug effect monitoring.

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