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17 February 2011 Photoacoustic tomography of water in biological tissue
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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.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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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