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Updated: Jun 13, 2026

Integrated Photoacoustic Ophthalmoscopy and Spectral-domain Optical Coherence Tomography
Published on: January 15, 2013
Compressed sensing in photoacoustic tomography in vivo
Zijian Guo1, Changhui Li, Liang Song
1Washington University, Department of Biomedical Engineering, Optical Imaging Laboratory, 1 Brookings Drive, St. Louis, Missouri 63130, USA.
Abstract:
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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