Photoacoustic tomography of water in biological tissue

Zhun Xu; Changhui Li; Lihong V. Wang

doi:10.1117/12.873415

17 February 2011 Photoacoustic tomography of water in biological tissue

Zhun Xu, Changhui Li, Lihong V. Wang

Proceedings Volume 7899, Photons Plus Ultrasound: Imaging and Sensing 2011; 789912 (2011) https://doi.org/10.1117/12.873415
Event: SPIE BiOS, 2011, San Francisco, California, United States

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.

Citation Download Citation

Zhun Xu, Changhui Li, and Lihong V. Wang "Photoacoustic tomography of water in biological tissue", Proc. SPIE 7899, Photons Plus Ultrasound: Imaging and Sensing 2011, 789912 (17 February 2011); https://doi.org/10.1117/12.873415

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