Fig. 2From: Detection limit of 89Zr-labeled T cells for cellular tracking: an in vitro imaging approach using clinical PET/CT and PET/MRIIndividual value plots and median of a total activity [kBq] in 106, 105, and 104 wells as measured by the well counter; b total activity [kBq] in 106, 105, and 104 wells as obtained from PET images acquired using PET/CT and PET/MRI; c cell number in 106, 105, and 104 wells; and d specific activity [kBq/106 cells] in different wellsBack to article page