Abstract #1913

in vivo Evaluation of 68Ga-Labeled Iron Oxide Nanoparticles as a PET/MR Imaging Probe

Renata Madru¹, Thuy Tran², Adnan Bibic³, Sarah Fredriksson⁴, Freddy Sthlberg⁵, Linda Knutsson⁵, Sven-Erik Strand⁵

¹Medical Radiation Physics, Lunds University, Lund, Sweden; ²Lund University BioImaging Centrum, Lund University, Lund, Skane, Sweden; ³Lund University BioImaging Centrum, Lund University, Lund, Sweden; ⁴Genovis AB, Lund, Sweden; ⁵Medical Radiation Physics, Lund University, Lund, Sweden

The purpose of this study was to develop a new PET/MRI probe to improve the current sentinel lymph node technique used for diagnostic and staging of breast cancer and malignant melanoma. Here we demonstrate the feasibility of labeling the synthetized SPIONs with the generator produced Ga-68 and accumulation of the 68Ga-SPIONs in lymph nodes after subcutanious injection in rats, verified by PET and MRI. The results are encouraging for future clinical applications adding important pre-operative information which may lead to new therapeutic strategies.