The FMT® 4000 fluorescence tomography imaging system provides the greatest utiliy of the FMT Systems with the ability to quantitate up to four fluorophores simultaneously. The system comes with four excitation laser channels (635, 680, 750, and 790 nm) and is useful for a range of applications including oncology, inflammation, and cardiovascular disease. It is ideal for researchers who are well-versed in 3D fluorescence tomography and require the widest range of in vivo applications and imaging agents.