期刊
JOURNAL OF BIOMEDICAL OPTICS
卷 15, 期 2, 页码 -出版社
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
DOI: 10.1117/1.3381187
关键词
photoacoustic imaging; computed tomography; compressed sensing; conjugate gradient descent algorithm
资金
- NCI NIH HHS [U54 CA136398, R01 CA134539, R01 CA113453901] Funding Source: Medline
- NIBIB NIH HHS [R01 EB008085, R01 EB000712] Funding Source: Medline
- NINDS NIH HHS [R01 NS46214, R01 NS046214] Funding Source: Medline
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. (C) 2010 society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3381187]
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