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 language | English |
|---|---|
| Article number | 9393879 |
| Pages (from-to) | 2023-2029 |
| Number of pages | 7 |
| Journal | IEEE Transactions on Medical Imaging |
| Volume | 40 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 2021 |
| Externally published | Yes |
Keywords
- 3D imaging
- data acquisition
- high-speed imaging
- optoacoustic
- photoacoustic
- ultrasound
