Compressed sensing in photoacoustic tomography in vivo.
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.
Guo
Zijian
Z
Washington University, Department of Biomedical Engineering, Optical Imaging Laboratory, 1 Brookings Drive, St. Louis, Missouri 63130, USA.
Li
Changhui
C
Song
Liang
L
Wang
Lihong V
LV
D000465:Algorithms; D044962:Data Compression / Q000379:methods*; D054459:Elasticity Imaging Techniques / Q000379:methods*; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D041622:Tomography, Optical / Q000379:methods*
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