报 告 人：ProfessorXiaoning Jiang
工作单位：North Carolina State University(北卡罗莱纳州立大学)
Dr. Xiaoning Jiang is a Distinguished Professor of Mechanical and Aerospace Engineering and a University Faculty Scholar at North Carolina State University. He is also an Adjunct Professor of Biomedical Engineering at North Carolina State University and University of North Carolina, Chapel Hill. Dr. Jiang received his Ph.D. degree from Tsinghua University (1997) and his Postdoctoral training from the Pennsylvania State University (1997-2001). He was the Chief Scientist and Vice President for TRS Technologies, Inc. prior to joining NC State in 2009. Dr. Jiang is the author and co-author of two books, 5 book chapters, 9 issued US Patents, over 100 peer reviewed journal papers and over 100 conference papers on piezoelectric ultrasound transducers, ultrasound for medical imaging and therapy, drug delivery, ultrasound NDT/NDE, smart materials and structures and M/NEMS. Dr. Jiang is a member of the technical program committee for a few international conferences including IEEE Ultrasonics Symposium (TPC-5), SPIE Smart Structures and NDE, ASME IMECE, IEEE NMDC and IEEE NANO. He also serves as the NanoAcoustics Technical Committee Chair for IEEE NTC, IEEE NTC Distinguished Lecturer (2018, 2019), an editorial board member for the journal Sensors, an Associated Editor for IEEE Nanotechnology Magazine and a Senior Associate Editor for the ASME Journal of Engineering and Science in Medical Diagnostics and Therapy. Dr. Jiang is an ASME Fellow.
Cardiovascular disease (CVD) is a leading cause of death for both men and women in USA. Intravascular ultrasound imaging is expected to be effective in CVD diagnosis and the associated transducer innovation is critically important. In this talk, small aperture transducer materials, structures and devices are presented for advanced intravascular ultrasound imaging. In specific, we investigated high frequency (40-60 MHz) micromachined piezoelectric composite transducers and arrays with broad bandwidth (-6 dB fraction bandwidth ~ 80%) for intravascular ultrasound (IVUS) imaging. Dual frequency transducers and arrays (6.5 MHz/30 MHz, 3 MHz/30 MHz) were successfully developed for contrast enhanced intravascular superharmonic imaging (or acoustic angiography) toward detection of plaque vulnerability. These new findings suggest that small aperture, broadband and multifrequency intravascular ultrasound transducers are increasingly important in advancing intravascular ultrasound imaging, as well as minimal invasive diagnosis and image guided surgery.