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Proceedings Paper

Photoacoustic tomograph with ultrasound probe beam
Author(s): Yaguang Zeng; Da Xing
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Paper Abstract

Photoacoustic has attracted high attention in recent years, because this imaging technique can combine the advantages of ultrasound and light to improve the image resolution and diagnostic depth of tissues. In this paper, An innovative method of recording photoacoustic (PA) waves in situ is proposed. A focused probe ultrasonic beam passes through a specimen and tags the position of the interested PA signal. The probe-beam interacts nonlinearly with PA wave, which take out more information interaction area. The PA signal in situ is obtained by demodulating the probe-beam. The technique can produce PA signal with high signal-to-noise ratio maging. The filter-back-project algorithm is used for reconstruction. And the PA tomography of a phantom with diameter of 3.5cm is obtained.

Paper Details

Date Published: 8 December 2003
PDF: 7 pages
Proc. SPIE 5254, Third International Conference on Photonics and Imaging in Biology and Medicine, (8 December 2003); doi: 10.1117/12.546098
Show Author Affiliations
Yaguang Zeng, South China Normal Univ. (China)
Da Xing, South China Normal Univ. (China)


Published in SPIE Proceedings Vol. 5254:
Third International Conference on Photonics and Imaging in Biology and Medicine
Qingming Luo; Valery V. Tuchin; Min Gu; Lihong V. Wang, Editor(s)

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