Image reconstruction in optoacoustic tomography accounting for frequency-dependent attenuation

Patrick La Rivière, Jin Zhang, Mark A. Anastasio

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Optoacoustic tomography (OAT) (also known as photoacoustic tomography or thermoacoustic tomography) is an emerging imaging modality that exploits the complementary strengths of optical and acoustical imaging to generate images whose contrast is due to optical absorption but whose resolution properties are determined by detected acoustic signals [1-16]. Briefly, one exposes a sample to pulses of electromagnetic radiation that cause small amounts of heating in the specimen. The heating engenders thermal expansion, which, in turn, gives rise to acoustic waves. The resulting acoustic pressure signal is generally measured by transducers arrayed around the object, usually on a planar, spherical, or cylindrical surface, and these data may be used to reconstruct images of the original electromagnetic absorption. Because the acoustic waves are generally less readily scattered in tissue than optical photons, the resulting images have higher resolution than compared to images that were obtained from measurements of the optical transmission.

Original languageEnglish (US)
Title of host publicationPhotoacoustic Imaging and Spectroscopy
PublisherCRC Press
Pages145-154
Number of pages10
ISBN (Electronic)9781420059922
ISBN (Print)9781420059915
DOIs
StatePublished - Jan 1 2017
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)

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  • Cite this

    La Rivière, P., Zhang, J., & Anastasio, M. A. (2017). Image reconstruction in optoacoustic tomography accounting for frequency-dependent attenuation. In Photoacoustic Imaging and Spectroscopy (pp. 145-154). CRC Press. https://doi.org/10.1201/9781420059922