The Japan's first Graduate School of Biomedical Engineering was founded at Tohoku University in 2008. Our laboratory was also founded as "Biomedical Imaging Laboratory" in Division of Biomedical Measurements and Diagnostics. We are investigating 3D and 4D imaging, automatic tissue characterization and blood flow dynamics based on clinical CT, MRI and ultrasound images. We are developing some new instruments for biomedial imaging such as ultrasound microscope and photoacoustic imaging. We are always challenging visualization of tissues and living cells. We are conjuncted with Smart Aging International Research Center at Institute of Development, Aging and Cancer, Tohoku University since April 1, 2010. Here we are investigating assessment of aging of skin and artery. Aobayama laboratory was destroyed by the earthquake on Mar 11, 2011. Most of the instruments have been repaired and we have restarted our research in a new labpratory. 2012/1/11 Renewal of home page 2011/12/1 Moved to new laboratory 2011/11/20 HostedEMBOLUS2011 at Sendai 2010/9 /13 HostedUBM2010 at Matsushima Graduate School of Biomedical Engineering, Tohoku University Smart Aging International Research Center at Institute of Development, Aging and Cancer, Tohoku University		UBM2010 We hosted UBM2010 at Matsushima on September 13-16, 2010 EBMOLUS2011 We hosted EMBOLUS2011 (in Japanese)