lantheus holdings, inc. (nasdaq: lnth) is the parent company of lantheus medical imaging, inc. (lmi), which is a global leader in the development, manufacture and commercialization of innovative diagnostic imaging agents and products. lmi provides a broad portfolio of products, which are primarily used for the diagnosis of cardiovascular diseases. lmi’s key products include the echocardiography contrast agent definity® vial for (perflutren lipid microsphere) injectable suspension; technelite® (technetium tc99m generator), a technetium-based generator that provides the essential medical isotope used in nuclear medicine procedures; and xenon (xenon xe 133 gas), an inhaled radiopharmaceutical imaging agent used to evaluate pulmonary function and for imaging the lungs. the company is headquartered in north billerica, massachusetts with offices in puerto rico and canada. for more information, visit www.lantheus.com.