Multi-target molecular imaging(MMI) is an important field of research in molecular imaging.It includes multi-tracer multi-target molecular imaging(MTMI)
fusion-molecule multi-target imaging(FMMI)
coupling-molecule multi-target imaging(CMMI)
and multi-target multifunctional molecular imaging(MMMI).In this paper
imaging modes of MMI are reviewed
and potential applications of positron emission tomography MMI in near future are discussed.