The feasibility of using center frequency spectra in photoacoustic imaging for tissue characterization

Azin Khodaverdi, Malin Larsson, Klara Wahldén, John Albinsson, Malin Malmsjö, Nina Reistad, Tobias Erlöv, Magnus Cinthio

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

In photoacoustic imaging, the amplitude of the photoacoustic signal is used for mapping the spatial distribution of a chromophore in the body and few studies have focused on the potential of using frequency content of the photoacoustic data. This study investigates the feasibility of using the photoacoustic center frequency spectrum in differentiating microspheres of various sizes and colors in phantoms. The microspheres with colors of green and blue, and the same size showed different center frequency spectrum shapes while keeping the offset (mean frequency) approximately the same. In addition, smaller microspheres showed higher center frequency offset, while larger microspheres showed smaller offset, suggesting the potential to use the center frequency spectrum for differentiating chromophores of various optical properties in the body.

Original languageEnglish
Title of host publicationIUS 2023 - IEEE International Ultrasonics Symposium, Proceedings
PublisherIEEE Computer Society
ISBN (Electronic)9798350346459
DOIs
Publication statusPublished - 2023
Event2023 IEEE International Ultrasonics Symposium, IUS 2023 - Montreal, Canada
Duration: 2023 Sept 32023 Sept 8

Publication series

NameIEEE International Ultrasonics Symposium, IUS
ISSN (Print)1948-5719
ISSN (Electronic)1948-5727

Conference

Conference2023 IEEE International Ultrasonics Symposium, IUS 2023
Country/TerritoryCanada
CityMontreal
Period2023/09/032023/09/08

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Subject classification (UKÄ)

  • Biomedical Laboratory Science/Technology

Free keywords

  • center frequency spectrum
  • frequency analysis
  • photoacoustic imaging
  • quantitative imaging
  • spectrum analysis
  • tissue characterization

Fingerprint

Dive into the research topics of 'The feasibility of using center frequency spectra in photoacoustic imaging for tissue characterization'. Together they form a unique fingerprint.

Cite this