68Ga-DOTA-NGR as a novel molecular probe for APN-positive tumor imaging using MicroPET

68Ga-DOTA-NGR was easily synthesized and showed favorable biodistribution and kinetics. 68Ga-DOTA-NGR could also specifically bind to the APN receptor in vitro and in vivo, and might be a potential molecular probe for the noninvasive detection of APN-positive tumors and neovasculature.