Carbon-11-Labeled Methionine PET/CT in Patients With FDG-Occult Multiple Myeloma: A Prospective Pilot Study.

Wang, Yingbing; Yee, Andrew; Bernstein, Zachary; O'Donnell, Elizabeth; Raje, Noopur; Mahmood, Umar · AJR Am J Roentgenol · 2023

case_series · Level IV

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Abstract

In a pilot study (ClinicalTrials.gov NCT02646085), seven patients with treated multiple myeloma and negative FDG PET/CT underwent amino acid imaging with <sup>11</sup>C-methionine PET/CT. In five participants, <sup>11</sup>C-methionine PET/CT showed focal uptake corresponding with lytic lesions; two to 18 lesions were found (SUV<sub>max</sub>, 2.8-6.4). Findings indicated a potential role for <sup>11</sup>C-methionine PET/CT in detecting residual disease after negative FDG PET/CT, thereby guiding further treatment.

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