Photoacoustic Lifetime Imaging of Hypoxia

Qi Shao, Joshua G. Punnoose

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

We present an approach based on photoacoustic lifetime imaging (PALI) to map the distribution of oxygen partial pressure (pO2) in tissue. This method utilizes methylene blue, a dye widely used in clinical applications, as an oxygen-sensitive imaging agent. PALI measurement of oxygen relies upon pO2-dependent excitation lifetime of the dye. The technique maps the excited triplet state of oxygen-sensitive dye, thus reflecting the spatial and temporal distributions of tissue oxygen.

Original languageEnglish (US)
Title of host publicationMethods in Molecular Biology
PublisherHumana Press Inc.
Pages141-147
Number of pages7
DOIs
StatePublished - 2024

Publication series

NameMethods in Molecular Biology
Volume2755
ISSN (Print)1064-3745
ISSN (Electronic)1940-6029

Bibliographical note

Publisher Copyright:
© The Author(s), under exclusive license to Springer Science+Business Media, LLC, part of Springer Nature 2024.

Keywords

  • Hypoxia
  • Methylene blue
  • Oxygen
  • Photoacoustic
  • Photoacoustic lifetime imaging

PubMed: MeSH publication types

  • Journal Article

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