Fig. 3From: Detection limit of 89Zr-labeled T cells for cellular tracking: an in vitro imaging approach using clinical PET/CT and PET/MRIPearson correlation between the total cell-associated activity [kBq] measured in the well counter and on PET images for a 6-well plates and b 3 × 3 cubic-well plate. c Pearson correlation of PET/CT and PET/MRI CNR vs. total cellular activity [kBq] for 6-well plates. d Individual value plot and median of CNR per specific activity category for both PET/CT and PET/MRI for 6-well plates. e Pearson correlation of PET/CT and PET/MRI CNR vs. total cellular activity [kBq] for 3 × 3 cubic-well plate. f Scatter plot of PET/CT and PET/MRI well CNR vs. cell number per specific activity category. CNR: contrast-to-noise ratioBack to article page