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Proceedings Paper

Development of a fast-scanning combined ultrasound-photoacoustic biomicroscope
Author(s): Roger J. Zemp; Huihong Lu; Kory Mathewson; Janaka Ranasinghesagara; Yan Jiang; Andrew Walsh; Xuhui Chen
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Paper Abstract

Recently a realtime photoacoustic microscopy system has been demonstrated. Unfortunately, however, displayed B-scan images were sometimes difficult to interpret as there was little structural context. In this work, we provide structural context for photoacoustic microscopy images by adding ultrasound biomicroscopy as a complementary and synergistic modality. Our system uses a voice-coil translation stage capable of 1" lateral translation, and can operate in excess of 15 Hz for 1-cm translations, providing up to 30 ultrasound frames per second. The frame-rate of the photoacoustic acquisitions is limited by the 20-Hz pulse-repetition rate of the laser, but can be increased with a faster-repetition-rate laser. Data from the system is streamed in real time from a 2GS/s PCI data acquisition card to the host PC at rates as high as 200 MB/s. The system should prove useful for various in vivo studies, including combined ultrasound Doppler and photoacoustic imaging.

Paper Details

Date Published: 24 February 2009
PDF: 8 pages
Proc. SPIE 7177, Photons Plus Ultrasound: Imaging and Sensing 2009, 717711 (24 February 2009);
Show Author Affiliations
Roger J. Zemp, Univ. of Alberta (Canada)
Huihong Lu, Univ. of Alberta (Canada)
Kory Mathewson, Univ. of Alberta (Canada)
Janaka Ranasinghesagara, Univ. of Alberta (Canada)
Yan Jiang, Univ. of Alberta (Canada)
Andrew Walsh, Univ. of Alberta (Canada)
Xuhui Chen, Univ. of Alberta (Canada)

Published in SPIE Proceedings Vol. 7177:
Photons Plus Ultrasound: Imaging and Sensing 2009
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

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