Hidehiko Okazawa, MD., PhD. is currently a professor and Director of the Biomedical Imaging Research Center, University of Fukui, Japan. He graduated from the School of Medicine, Kyoto University (1988). He has worked as a radiologist and nuclear medicine physician, and his field of expertise is PET and fMR imaging. He has worked at the Montreal Neurological Institute, McGill University as a post-doctoral fellow. He has published more than 140 brain imaging papers in the area of quantitative brain imaging, particularly on cerebrovascular diseases and dementia.