Lantheus Medical Imaging, Inc. engages in the manufacture, marketing, sale, and distribution of medical imaging products. It provides diagnostic imaging and nuclear medicine products that assist clinicians with the detection of disease, primarily cardiovascular. Its product protfolio includes DEFINITY, TechneLite, Xenon, AZEDRA, Cardiolite, and NEUROLITE. The company was founded in 1956 and is headquartered in North Billerica, MA.