| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Fast Photoacoustic Imaging of Blood Vessels Based on an Annular Transducer Array |
| YANG Di-Wu1**, ZENG Lv-Ming2, JI Xuan-Rong3, HUANG Zhong1, CHEN Xing-Hui1, TAN Zhi1 |
1Department of Physics and Engineering, Hunan University of Technology, Zhuzhou 412000
2Key Lab of Optic-Electronic and Communication, Jiangxi Sciences and Technology Normal College, Nanchang 330038
3Doppler Electronic Technologies Company Ltd., Guangzhou 510663
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| Cite this article: |
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YANG Di-Wu, ZENG Lv-Ming, JI Xuan-Rong et al 2012 Chin. Phys. Lett. 29 104302 |
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Abstract We present a photoacoustic imaging system for rapid high-resolution photoacoustic imaging of blood vessels based on an annular transducer array. The annular transducer array consists of 256 elements arranged along a 300° arc with a 50-mm radius of curvature, using piezocomposite technology for high sensitivity and high signal-to-noise ratio. An eight-channel data acquisition system is applied to capture the photoacoustic signals using multiplexing and a limited-view filtered back projection algorithm is used to reconstruct the photoacoustic images. The experiments with phantom and blood vessels of a chicken are performed and clear photoacoustic images are obtained. The results demonstrate that the photoacoustic imaging system using the annular transducer array holds the potential application in monitoring neovascularization in tumor angiogenesis.
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Received: 14 May 2012
Published: 01 October 2012
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| PACS: |
43.35.+d
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(Ultrasonics, quantum acoustics, and physical effects of sound)
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87.57.cf
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(Spatial resolution)
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43.60.+d
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(Acoustic signal processing)
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43.80.+p
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(Bioacoustics)
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