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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 8 — Apr. 14, 2008
  • pp: 5314–5319

Photoacoustic tomography imaging using a 4f acoustic lens and peak-hold technology

Yadong Wei, Zhilie Tang, Hanchao Zhang, Yongheng He, and Haifeng Liu  »View Author Affiliations

Optics Express, Vol. 16, Issue 8, pp. 5314-5319 (2008)

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In this paper we present a new high-contrast photoacoustic tomography (PAT) imaging system using a 4f acoustic lens, a 64-element linear transducer array and peak-hold technology. This PAT imaging system has been developed to obtain three-dimensional (3D) PAT images of experimental samples. By utilizing a 4f acoustic lens, the photoacoustic (PA) signals generated from the sample are directly imaged on the imaging plane and collected by the 64-element linear transducer array, which changes them into the corresponding electronic signals. Then we can get one-dimensional (1D) images from the electronic signals using a peak detection-and-hold circuit. After vertical scanning with a stepping motor on the imaging plane, a 2D PA image of the sample is successfully obtained. Combined with the time-resolved technique, we can then get 3D PAT images. The results show that the reconstructed images agree well with the original samples.

© 2008 Optical Society of America

OCIS Codes
(170.0110) Medical optics and biotechnology : Imaging systems
(170.3010) Medical optics and biotechnology : Image reconstruction techniques
(170.5120) Medical optics and biotechnology : Photoacoustic imaging
(170.6920) Medical optics and biotechnology : Time-resolved imaging

ToC Category:
Medical Optics and Biotechnology

Original Manuscript: February 11, 2008
Revised Manuscript: March 22, 2008
Manuscript Accepted: March 28, 2008
Published: April 2, 2008

Virtual Issues
Vol. 3, Iss. 5 Virtual Journal for Biomedical Optics

Yadong Wei, Zhilie Tang, Hanchao Zhang, Yongheng He, and Haifeng Liu, "Photoacoustic tomography imaging using a 4f acoustic lens and peak-hold technology," Opt. Express 16, 5314-5319 (2008)

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