Welcome to the Department of Radiology of Stony Brook University and Stony Brook UniversityHospital. Our Department transverses both institutions and our common mission is a commitment to excellence in medical imaging, responsive service and the responsible use of our resources in clinical care, education and research. Our goal is to help our customers achieve their goals. The Department is built upon a system of competence, teamwork, innovation and service for you our constituents and patients. To the patients who seek restoration of their health and well-being,
we are committed to educate, communicate and provide responsive courteous service that will enable them to effectively participate in the diagnosis and/ or treatment of their medical condition without unnecessary anxiety or confusion. To the physicians and health care providers who refer their patients to us for diagnostic and therapeutic radiology services,

Diffusion tensor imaging (DTI) represents the next generation of diffusion weighted imaging (DWI) in MR. Diffusion weighted imaging non-invasively looks at the restriction of random Brownian motion of tissue water and provides clues about the microenvironment in which the water molecules are dispersing. Disease may directly or indirectly change the diffusion characteristics of the underlying tissue and can therefore be detected using diffusion weighted imaging techniques. For example, the failure of the sodiumpotassium ATP pump causes cytotoxic edema following acute brain infarction.