2C –Ultrasound System Design and Software Beamformation

TitleUltrasound System Design and Software Beamformation
InstructorKai Thomenius, MIT, USA
Overview of topics covered

  • Ultrasound scanner as a linear system

  • Simulation of ultrasonic image formation

  • Impact microelectronics on ultrasound scanners

  • Scanner miniaturization and 3D imaging

  • Software beamformation and its implications

  • New beamformation initiatives

TimeMonday, October 22
AbstractThe consideration of the components of an ultrasound scanner as parts of a linear system is presented. This is used as a launching point to a discussion of various methods of simulation of the image formation process. Hardware implementations of scanners are discussed with particular attention at the way increasingly faster and smaller microelectronics have influenced a scanner, its form factor, and range of clinical applications. The most recent phase of this process involves the migration of remaining digital hardware processing into software implementations. This short course will finish with a discussion of several software beamformation approaches that have been implemented already. A review of new approaches that become available with the processing of channel data (i.e. pre-beamformed data) and possible new diagnostic methods will be discussed. Of interest in this context is the potential role of new initiatives, largely in academia, to further develop modern beamformers such as the PICMUS challenge at IUS2016.
Short CV of Instructor Kai E. Thomenius took on the role of a Research Scientist at the Institute of Medical Engineering and Science at MIT in Cambridge, MA after his retirement from a position of a Chief Technologist in the Diagnostics and Biomedical Technologies group at General Electric Global Research facility in Niskayuna, NY, USA. Previously, he held senior R&D roles at ATL Ultrasound Inc., Interspec Inc., Elscint Inc., as well as other ultrasound companies. In addition, he has been an Adjunct Professor in the Electrical, Computer, and Systems Engineering Department at Rensselaer Polytechnic Institute. Dr. Thomenius' academic background is in electrical engineering with a minor in physiology; all of his degrees are from Rutgers University. His long-term interests have been in ultrasound beam formation and miniaturization of ultrasound scanners, propagation of acoustic waves in inhomogeneous media, delivery of drugs and plasmid DNA to cells, and determination of physiological information from the echoes that arise from such beams. Dr. Thomenius is a Fellow of the American Institute of Ultrasound in Medicine and is the 2017 recipient of the Joseph H. Holmes Pioneer Award from the American Institute of Ultrasound in Medicine.