First-in-Human: Simultaneous Hyperpolarized 1- 13 C-Pyruvate Magnetic Resonance Spectroscopy and 18 F-FDG PET (hyperPET) Imaging of a Patient With Lymphoma.

Loft, Mathias; Clemmensen, Andreas; Christensen, Emil Nørgaard; Denholt, Charlotte Lund; Johannesen, Helle Hjorth; Gillings, Nic; Carlsen, Esben Andreas; Clausen, Malene Martini et al. · Clin Nucl Med · 2025

case_report · Level V

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Abstract

Hyperpolarized 1- 13 C-pyruvate magnetic resonance spectroscopy (MRS) and MRS imaging (MRSI) offer noninvasive and real-time direct assessment of the altered metabolism of cancer cells known as the Warburg effect-a key hallmark of cancer. When combined with simultaneously acquired 18 F-FDG PET in a PET/MR scanner, coined hyperPET by us, this dual-modality may unveil cancer-type specific glucose metabolic phenotypes with potential implications for patient prognostication, treatment-response assessment, and prediction. We here present the first human data of simultaneously acquired hyperpolarized MRS/MRSI and PET performed in a PET/MR scanner-and the first human hyperpolarized MRS/MRSI data from a patient with lymphoma.

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