"Ultrasound Imaging: The Essence"

Dr. Alfred C. H. Yu
Medical Engineering Program,
The University of Hong Kong


Perhaps known for the imaging of developing fetuses inside the mother’s womb, ultrasound has emerged as a non-invasive imaging modality that can provide images of structural anatomy and blood flow in real time. In this part of the workshop, we shall discuss how the ultrasound images seen in clinics are actually being generated from an engineering science perspective. Concepts such as imaging modes, physical origin of imaging signals, and wave physics will be described. After attending this session, participants should be better prepared to read into the details of ultrasound imaging periodicals that have strong technical flavour. It also serves to set the stage for the next workshop session on a special ultrasound imaging mode commonly referred to as IVUS (intravascular ultrasound).


Alfred Yu is a Research Assistant Professor in the Medical Engineering Program and the Principal Investigator of the Biomedical Ultrasound Laboratory at the University of Hong Kong. He is also the present Chair of the Hong Kong Chapter of IEEE Engineering in Medicine and Biology Society. Immigrated to Canada when he was 10 years old, Dr. Yu obtained his undergraduate degree in Electrical Engineering at the University of Calgary. He then received his M.A.Sc. and Ph.D. training in Biomedical Engineering at the University of Toronto, and in between, he completed a corporate internship at Philips Research North America. His research interests are mainly centered around the field of biomedical ultrasound. His team is currently working on three ultrasound research areas: 1) development of new system hardware, 2) design of novel imaging paradigms, and 3) cellular investigations of ultrasound-induced therapeutic effects.