Radiosynthesis and Preliminary Biological Evaluation of ¹⁸F-Fluoropropionyl-Chlorotoxin as a Potential PET Tracer for Glioma Imaging

Figure 4

(a–c) A tumor-bearing rat with [¹⁸F]-FP-chlorotoxin PET examination showing that the tumor had a high accumulation of this new PET tracer with the highest uptake at 90 min after injection. (d) [¹⁸F]-FDG PET examination of the same rat demonstrating hypermetabolic foci in the tumor area. (a) 60 min. (b) 90 min. (c) 120 min. (d) 60 min.