Hartung-Gorre Verlag
Inh.: Dr.
Renate Gorre D-78465
Konstanz Fon: +49 (0)7533 97227 Fax: +49 (0)7533 97228 www.hartung-gorre.de
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S
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Series in
Microelectronics
edited by
Qiuting
Huang
Andreas Schenk
Mathieu
Maurice Luisier
Bernd
Witzigmann
Pascal Alexander Hager
Design of Fully-Digital
Medical Ultrasound Imaging
Systems
2019. XVI, 192 pages. € 64,00.
ISBN 978-3-86628-649-8
Abstract:
Ultrasound imaging is one of the most used clinical imaging modalities
thanks to its real-time output, ease-of-use, portability and low cost. From its inception, ultrasound imaging
strongly relied on hardware innovations to be the enabler for new imaging modalities
and system architectures.
In this thesis, several hardware innovations for future ultrasound
systems are explored that focus on replacing analog system parts with digital
solutions. In a first part,
fully-digital beamformers for 3D imaging are investigated
as an alternative to replace existing mixed-signal solutions. In a second part, a new
system architecture for software-defined 2D imaging is explored. To showcase the concept, a novel ultrasound
probe was designed, which embeds an entire 64-channel ultrasound front-end
within the probe handle, and provides access to the digitized sensor data over
a 25 Gbit/s fiber-optics interface. This optical
connector replaces the expensive analog cable harness used in conventional
probes. The probe was then connected to an off-the-shelf PC equipped with a
powerful GPU to demonstrate that advanced computeintensive
ultrasound modalities can be implemented at low cost.
About the Author
Pascal Alexander
Hager was born in Oberdiessbach,
Switzerland, in 1990. He received his
M.Sc. degree in electrical engineering and information technology from ETH
Zurich in 2014. He then joined the group of Prof. Dr. Luca Benini
at the Integrated Systems Laboratory (IIS) at ETH Zurich. His research
interests include medical ultrasound imaging, digital signal processing and
low-power integrated circuit design.
Keywords: Ultrasound Imaging, Medical Imaging, Digital Ultrasound Probe,
Software-defined Ultrasound, Ultrafast Imaging, Beamformer, GPU Beamforming, 3D
ultrasound, Multiplexer Probe, Optical Link
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