LightSpeed: A Compact, High-Speed Optical-Link-Based 3D Optoacoustic Imager

Cagla Ozsoy, Andrea Cossettini, Ali Ozbek, Sergei Vostrikov, Pascal Hager, Xose Luis Dean-Ben, Luca Benini, Daniel Razansky

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Wide-scale adoption of optoacoustic imaging in biology and medicine critically depends on availability of affordable scanners combining ease of operation with optimal imaging performance. Here we introduce LightSpeed: a low-cost real-time volumetric handheld optoacoustic imager based on a new compact software-defined ultrasound digital acquisition platform and a pulsed laser diode. It supports the simultaneous signal acquisition from up to 192 ultrasound channels and provides a hig-bandwidth direct optical link (2x 100G Ethernet) to the host-PC for ultra-high frame rate image acquisitions. We demonstrate use of the system for ultrafast (500Hz) 3D human angiography with a rapidly moving handheld probe. LightSpeed attained image quality comparable with a conventional optoacoustic imaging systems employing bulky acquisition electronics and a Q-switched pulsed laser. Our results thus pave the way towards a new generation of compact, affordable and high-performance optoacoustic scanners.

Original languageEnglish
Article number9393879
Pages (from-to)2023-2029
Number of pages7
JournalIEEE Transactions on Medical Imaging
Volume40
Issue number8
DOIs
StatePublished - Aug 2021
Externally publishedYes

Keywords

  • 3D imaging
  • data acquisition
  • high-speed imaging
  • optoacoustic
  • photoacoustic
  • ultrasound

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