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Research Abstracts Online
January 2008 - March 2009

University of Minnesota Twin Cities
Institute of Technology
Department of Electrical and Computer Engineering

PI: Emad S. Ebbini

Waveform Design for High-frequency Ultrasound Imaging

Modern diagnostic ultrasound scanners rely heavily on array transducers and digital beamforming in a variety of medical applications. Advances in transducer technology and integrated electronics have encouraged a number of research groups investigating the use of arrays and digital beamforming in some high-frequency applications. Conventional beamforming, however, puts some severe constraints on high-frequency array transducers, which can severely limit their potential. This group is investigating new approaches to ultrasonic imaging combining array aperture design, transmit waveform design, and pre- and post-beamforming filtering to optimize the overall performance. A simulation study is underway to validate this new approach to pulse-echo imaging using high-frequency ultrasound array.

Group Member

Yayun Wan, Graduate Student