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Abstract #1038

A Novel PET/MRI Hybrid Probe enables Non-invasive Imaging of Perfusion and Excretion in vivo

Remy Chiaffarelli1,2, Jan Kretschmer1,2, Jonathan Cotton1,2, Miloslav Polasek3, and André Martins1,2,4
1Werner Siemens Imaging Center, University Hospital Tuebingen, Tuebingen, Germany, 2Cluster of Excellence iFIT (EXC 2180) “Image-Guided and Functionally Instructed Tumor Therapies”, University of Tuebingen, Tuebingen, Germany, 3Institute of Organic Chemistry and Biochemistry of the CAS, Prague, Czech Republic, 4German Cancer Consortium (DKTK), partner site Tübingen, German Cancer Research Center (DKFZ), Heidelberg, Germany

Synopsis

Keywords: Contrast Agents, PET/MR, Perfusion Kidney Gadolinium

Motivation: Our work is driven by the conviction that the integration of PET and MRI in molecular imaging has the potential to revolutionize diagnostic precision and patient care.

Goal(s): Enhance precision molecular imaging through the development of a unique hybrid PET/MRI perfusion probe, [18F][Gd(FL1­­)].

Approach: Develop a PET/MRI probe, [18F][Gd(FL1­­)], that is exceptionally stable, rapidly synthesized, efficiently radiolabeled, and allows simultaneous PET/MR imaging, focusing on tissue perfusion and renal filtration in preclinical models.

Results: After achieving high-yield radiosynthesis with a unique approach, our dual-modality probe showed consistent signals in both imaging modalities and was reliably quantified thanks to the combination of PET and MRI.

Impact: The first-of-its-kind hybrid PET/MR probe [18F][Gd(FL1­­)] can be readily and efficiently radio-synthetized and allows simultaneous PET/MR quantitative measurement of perfusion and excretion. This probe opens the path for quantifying molecular imaging probes in research and clinical practice.

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