Dr. Akasaka graduated from Wakayama Medical University in 1982 and finished his residency at Kobe City Medical Center General Hospital (KCGH). He had been clinical fellow at Harefield Hospital in United Kingdom in 1987. From 1989, he had done clinical research work in the field of coronary physiology using coronary flow velocity and pressure extensively at KCGH as a director of cardiac catheterization laboratory for 8 years. After he moved to Kawasaki Medical University as associate professor, he started OCT for 5 years. And then, he became Professor of Wakayama Medical University in 2005 and he has been devoted to the clinical research work using OCT and coronary physiology. He has published the many papers regarding coronary imaging using OCT in addition to coronary physiology research. Based on his clinical and research work, he has been the executive board members in various cardiology societies and the course co-directors of several coronary live-demonstration courses in the world