Invited Speakers 


Yongping Zheng
received the BSc and MEng in Electronics and Information Engineering from the University of Science and Technology of China. He received the PhD degree in Biomedical Engineering from the Hong Kong Polytechnic University (PolyU) in 1997. After a postdoctoral fellowship at the University of Windsor, Canada, he joined PolyU as an Assistant Professor in 2001 and was prompted to Associate Professor and Professor in 2005 and 2008, respectively. He served as the Associate Director of the Research Institute of Innovative Products in PolyU from 2008 to 2010. He is currently serving as Acting Head of the Interdisciplinary Division of Biomedical Engineering and a member of PolyU Knowledge Transfer Committee.

Prof. Zhengˇ¦s main research interests include biomedical ultrasound instrumentation, 3D ultrasound imaging, tissue elasticity measurement and imaging, and wearable sensors for healthcare. He has published over 100 SCI papers, and over 160 conference abstracts and proceeding papers. His research and development works have won many international awards. As Chief Supervisor, he has trained 6 Postdoctoral Fellows, 6 PhD (4 got Faculty Distinguished Thesis Award), 5 MPhil graduates, and 4 PhD, 1 MPhil students are currently under his supervision. He is in the editorial boards of number of journals and the Associate Editor of Transactions of Hong Kong Institution of Engineers. He is a Senior Member of IEEE and a member of HKIE. He holds 7 US and 10 Chinese patents and has other 8 patents pending, in the field of biomedical ultrasound and wearable sensors. Nine out of these patents have been successfully licensed to industry for commercialization.


Ultrasound imaging has been routinely used in hospitals and clinics for the diagnosis and assessment of various diseases. It cannot only provide anatomical information (B-mode), but also tissue and organ motion (M-mode) and blood flow information (Pulse Doppler, Color Doppler, and Power Doppler). In comparison with MRI, ultrasound is more mobile, accessible, and with low-cost and real-time features. With the development of micro-bubble based contrast agents, not only blood flow image can be enhanced but also blood perfusion information can be obtained. Recently, photoacoutics technique uses high-energy pulse laser induced ultrasound to achieve high resolution imaging for blood and its oxygenation without the need of any contract agent. However, recent innovations in biomedical ultrasound imaging are much more than these.

With rapid advancements of computing technologies and simultaneously micro-electronics, biomedical imaging has entered a new era of innovation and development, including 3D ultrasound imaging, tissue elasticity imaging, sonomyography ˇV quantitative and dynamic analysis of muscle during contraction, palm-size and wireless ultrasound imaging devices, etc. In this talk, innovations in 3D ultrasound imaging for musculoskeletal tissues will be introduced, including free-hand 3D ultrasound systems, reconstruction of 3D ultrasound, volume-free 3D ultrasound measurement, radiation-free assessment of scoliosis (scolioscanTM), 3D annotation for breast cancer ultrasound imaging. Sonomyography (a term coined in 2006), which represents real-time architectural changes of muscle extracted from ultrasound images during contraction, will also be introduced. This novel signal about muscle contract can be used for muscle functional assessment as well as human-machine interface, such as powered prosthesis control. It has triggered many research efforts on how to effectively extract different sonomyography signals, including muscle thickness, cross-sectional area, pennation angle, fascicle length, etc. Real-time extraction of architectural features requires significant computational power. Similarly, ultrasound elasticity imaging, which is particularly useful for breast and prostate cancer diagnosis, benefits a lot from the recent advancement of computer technology. Another domain of innovations in biomedical ultrasound imaging is the development of palm-size and wireless ultrasound imaging devices, which is changing the paradigm of medical imaging. All these recent innovations in biomedical ultrasound imaging are significantly aided by the rapid advancements in computer technologies. In summary, with the further development and penetration of mobile computing, multi-core and GPU-embedded CPU, lighter and smaller while more powerful tablet PC, and the possibility of using more complicated image processing algorithms, more innovations are expected in biomedical ultrasound imaging.


ICCH International Conference on Computerized Healthcare 2012