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Proceedings Paper

Photoacoustic tomography of water in biological tissue
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Paper Abstract

As an emerging imaging technique that combines high optical contrast and ultrasonic detection, photoacoustic tomography (PAT) has been widely used to image optically absorptive objects in both human and animal tissues. PAT overcomes the depth limitation of other high-resolution optical imaging methods, and it is also free from speckle artifacts. To our knowledge, water has never been imaged by PAT in biological tissue. Here, for the first time, we experimentally imaged water in both tissue phantoms and biological tissues using a near infrared (NIR) light source. The differences among photoacoustic images of water with different concentrations indicate that laser-based PAT can usefully detect and image water content in tissue.

Paper Details

Date Published: 17 February 2011
PDF: 5 pages
Proc. SPIE 7899, Photons Plus Ultrasound: Imaging and Sensing 2011, 789912 (17 February 2011); doi: 10.1117/12.873415
Show Author Affiliations
Zhun Xu, Washington Univ. in St. Louis (United States)
Changhui Li, Washington Univ. in St. Louis (United States)
Lihong V. Wang, Washington Univ. in St. Louis (United States)

Published in SPIE Proceedings Vol. 7899:
Photons Plus Ultrasound: Imaging and Sensing 2011
Alexander A. Oraevsky; Lihong V. Wang, Editor(s)

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