Keiichi Itatani was born in 1977. He is a cardiovascular surgeon and a researcher of fluid dynamics. Since he graduated from the university of Tokyo in 2002, he has been involved in the clinical practice of cardiovascular surgery, and at the same time, has been thinking about “what the optimal cardiovascular surgery is”, and he started research of fluid dynamics in cardiology. He developed blood flow simulation method useing computational fluid dynamics (CFD), blood flow imaging with phase contrast MRI and echocardiography vector flow mapping (VFM) and he invented energy loss calculation method. He became an endowed chair, Department of Hemodynamic Analysis in Kitasato University School of Medicine in 2012. He founded Cardio Flow Design Inc in 2015, and he is working for the department of cardiovascular surgery in Kyoto Prefectural University of Medicine from 2015. He became an endowed chair of Cardiovascular Imaging Research Laboratory in Kyoto Prefectural University of Medicine in 2016. He became an adult congenital heart surgeon in Kyoto Prefectural University of Medicine in 2018. He became Hospital lecturer in the department of cardiovascular surgery in Osaka City University in 2021.He became a lecturer in cardiovascular surgery at Nagoya City University in 2022.He became an associate Professor at Nagoya City University Graduate School of Medical Sciences, Department of Cardiovascular Surgery, Director of the Adult Congenital Heart Disease Center in 2023.