Real-time photoacoustic imaging based on multielement linear transducer array

Bangzheng Yin; Da Xing; Yi Wang; Yaguang Zeng; Yi Tan

doi:10.1117/12.573521

18 January 2005 Real-time photoacoustic imaging based on multielement linear transducer array

Bangzheng Yin, Da Xing, Yi Wang, Yaguang Zeng, Yi Tan

Proceedings Volume 5630, Optics in Health Care and Biomedical Optics: Diagnostics and Treatment II; (2005) https://doi.org/10.1117/12.573521
Event: Photonics Asia, 2004, Beijing, China

Abstract

A real-time photoacoustic (PA) imaging system based on multi-element linear transducer array was developed and test on phantoms. A Q switched Nd:YAG laser operating at 532 nm and 20Hz repeat rate was used in our experiment as thermal source. The multi-element linear transducer array consists of 320 elements. By phase-controlled method, 64 signals, one of which gathered by 11-group element, make up of an image. It was acquired in only about 3 seconds. Phantom experiment results can map the distribution of the optical absorption correctly. Compared to other existing technology and algorithm, the PA imaging based on transducer array was characterize by speediness and convenience. It can provide a new approach for tissue functional imaging in vivo, and may have potentials in developing into an appliance for clinic diagnosis.

Citation Download Citation

Bangzheng Yin, Da Xing, Yi Wang, Yaguang Zeng, and Yi Tan "Real-time photoacoustic imaging based on multielement linear transducer array", Proc. SPIE 5630, Optics in Health Care and Biomedical Optics: Diagnostics and Treatment II, (18 January 2005); https://doi.org/10.1117/12.573521

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KEYWORDS

Transducers

Signal detection

Sensors

Acoustics

Tissues

Absorption

Reconstruction algorithms

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