Handheld probe for portable high frame photoacoustic/ultrasound imaging system

Khalid Daoudi, P.J. van den Berg, O. Rabot, A. Kohl, S. Tisserand, P.J. Brands, Wiendelt Steenbergen

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

7 Citations (Scopus)

Abstract

Photoacoustics is a hybrid imaging modality that is based on the detection of acoustic waves generated by absorption of pulsed light by tissue chromophors. In current research, this technique uses large and costly photoacoustic systems with a low frame rate imaging. To open the door for widespread clinical use, a compact, cost effective and fast system is required. In this paper we report on the development of a small compact handset pulsed laser probe which will be connected to a portable ultrasound system for real-time photoacoustic imaging and ultrasound imaging. The probe integrates diode lasers driven by an electrical driver developed for very short high power pulses. It uses specifically developed highly efficient diode stacks with high frequency repetition rate up to 10 kHz, emitting at 800nm wavelength. The emitted beam is collimated and shaped with compact micro optics beam shaping system delivering a homogenized rectangular laser beam intensity distribution. The laser block is integrated with an ultrasound transducer in an ergonomically designed handset probe. This handset is a building block enabling for a low cost high frame rate photoacoustic and ultrasound imaging system. The probe was used with a modified ultrasound scanner and was tested by imaging a tissue mimicking phantom.
Original languageEnglish
Title of host publicationPhotons Plus Ultrasound: Imaging and Sensing 2013
EditorsAlexander A. Oraevsky, Lihong V. Wang
Place of PublicationBellingham, WA
PublisherSPIE
ISBN (Print)9780819493507
DOIs
Publication statusPublished - 2 Feb 2013
EventPhotons plus ultrasound : imaging and sensing 2013 - San Francisco, United States
Duration: 3 Feb 20135 Feb 2013

Publication series

NameProceedings of SPIE
PublisherSPIE
Volume8581
ISSN (Print)0277-786X

Conference

ConferencePhotons plus ultrasound : imaging and sensing 2013
CountryUnited States
CitySan Francisco
Period3/02/135/02/13

Keywords

  • Photoacoustics
  • Ultrasound
  • Laser diodes
  • Diffractive optical elements DOE

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