Special Section on Photons Plus Ultrasound: Imaging and Sensing

Compressed sensing in photoacoustic tomography in vivo

[+] Author Affiliations
Zijian Guo, Changhui Li, Liang Song, Lihong V. Wang

Washington University, Department of Biomedical Engineering, Optical Imaging Laboratory, 1 Brookings Drive, St. Louis, Missouri 63130

J. Biomed. Opt. 15(2), 021311 (April 12, 2010). doi:10.1117/1.3381187
History: Received August 11, 2009; Revised February 11, 2010; Accepted February 11, 2010; Published April 12, 2010; Online April 12, 2010
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The data acquisition speed in photoacoustic computed tomography (PACT) is limited by the laser repetition rate and the number of parallel ultrasound detecting channels. Reconstructing an image with fewer measurements can effectively accelerate the data acquisition and reduce the system cost. We adapt compressed sensing (CS) for the reconstruction in PACT. CS-based PACT is implemented as a nonlinear conjugate gradient descent algorithm and tested with both phantom and in vivo experiments.

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© 2010 Society of Photo-Optical Instrumentation Engineers

Citation

Zijian Guo ; Changhui Li ; Liang Song and Lihong V. Wang
"Compressed sensing in photoacoustic tomography in vivo", J. Biomed. Opt. 15(2), 021311 (April 12, 2010). ; http://dx.doi.org/10.1117/1.3381187


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