Figure 4From: Novel 89Zr cell labeling approach for PET-based cell trafficking studies Retention of 89 Zr in 89 Zr-labeled cells expressed as radioactivity in MBq in the cell population. The retention value is representing total radioactivity/106 cells in the proliferating cell population. No significant change was observed in retention of 89Zr in radiolabeled cells. Values are shown as mean ± standard deviation, n = 3.Back to article page