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Abstract #5182

Real-time hyperpolarized 13C-pyruvate CMRI imaging pipeline for monitoring of cardiotoxicity

Fatemeh Khashami1, Ivan E Dimitrov2,3, Maximilian Fuetterer4, Sebastian Kozerke4, Emily Buchanan3, Crystal E Harrison3, Mai Huynh3, Aneela Afzal1, Jae Mo Park3, Zoltan Kovacs3, Craig R. Malloy3,5, Anke Henning3, and Vlad G. Zaha1,3,6
1Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, United States, 2Philips Healthcare, Gainesville, FL, United States, 3Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, TX, United States, 4ETH Zurich, Institute for Biomedical Engineering, Zürich, Swaziland, 5Dallas VA Medical Center, Dallas, TX, United States, 6Harold C. Simmons Comprehensive Cancer Center, Dallas, TX, United States

Synopsis

Motivation: Real-time imaging protocol based on hyperpolarized 13C pyruvate to probe metabolic changes in patients undergoing standard-of-care chemotherapy for breast cancer, with cardiotoxic potential.

Goal(s): An imaging protocol that results in high-quality reproducible B0 heart shimming. To implement an echo-shifted mDIXON acquisition with spatial-spectral excitation to detect pyruvate and its major byproducts. A processing pipeline for reconstruction of metabolic images.

Approach: Single-shot EPI acquisitions with shifted echo times (n=6) were acquired following a SpSp excitation, as to generate signal for mDIXON / IDEAL reconstructed images of these metabolites.

Results: We have established a real-time 13C-hyperpolarization and imaging protocol and reconstruction pipeline

Impact: Noninvasive real-time metabolic imaging using hyperpolarized 13C may aid clinical evaluation of possible cardiac toxicity for breast cancer patients

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Keywords