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Photoacoustic and Thermoacoustic Tomography: Image Formation Principles

In: Handbook of Mathematical Methods in Imaging

Author

Listed:
  • Kun Wang

    (Illinois Institute of Technology)

  • Mark A. Anastasio

    (Illinois Institute of Technology)

Abstract

Photoacoustic tomography (PAT), also known as thermoacoustic or optoacoustic tomography, is a rapidly emerging imaging technique that holds great promise for biomedical imaging. PAT is a hybrid imaging technique, and can be viewed either as an ultrasound mediated electromagnetic modality or an ultrasound modality that exploits electromagnetic-enhanced image contrast. In this chapter, we provide a review of the underlying imaging physics and contrast mechanisms in PAT. Additionally, the imaging models that relate the measured photoacoustic wavefields to the sought-after optical absorption distribution are described in their continuous and discrete forms. The basic principles of image reconstruction from discrete measurement data are presented, which includes a review of methods for modeling the measurement system response.

Suggested Citation

  • Kun Wang & Mark A. Anastasio, 2011. "Photoacoustic and Thermoacoustic Tomography: Image Formation Principles," Springer Books, in: Otmar Scherzer (ed.), Handbook of Mathematical Methods in Imaging, chapter 18, pages 781-815, Springer.
    • Handle: RePEc:spr:sprchp:978-0-387-92920-0_18
    DOI: 10.1007/978-0-387-92920-0_18
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