FIGURE 2.

Dynamic image sequence acquired on day 0 for rhesus monkey B in each chelator-linker group. Each image is 10-min duration, with first image beginning approximately 2 min after antibody injection. Hot spot in arm of ⁸⁹Zr-DFO-squaramide–anti-gD group represents activity at injection site. Yellow arrows indicate activity in bladder observed in ⁸⁹Zr-DFO-Bz-NCS–anti-gD and ⁸⁹Zr-DFO*-Bz-NCS–anti-gD groups. Red arrow indicates activity in gastrointestinal tract observed only in ⁸⁹Zr-DFO-Bz-NCS–anti-gD group.