Focusing light within scattering media for photoacoustic tomography in a limited-view-angle tomography setting

Hiroshi Abe, Tsuyoshi Shiina

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In photoacoustic there is a trade-off between resolution and contrast at each depth, so it is difficult to accurately depict objects in deep regions. In recent years, scattering light control has been studied in various imaging fields. In this report, this control was applied to photoacoustic signals to increase the signal amplitude in the scatting media. To control the light, we used a feedback optical wavefront shaping technique and genetic algorithms (GAs) to optimize feedback. For the feedback signal, we use a photoacoustic signal in a transducer setting and a photoacoustic image in a limited-view-angle linear array probe setting. We demonstrated that wavefront light optimized by changing the light's speckle size can enhance the photoacoustic signal in tissue-mimicking phantoms in a confirmation experiment. We need to improve speed for biological imaging, but focusing light through scattering materials has potential in various biomedical applications.

Original languageEnglish
Title of host publicationIEEE International Ultrasonics Symposium, IUS
PublisherIEEE Computer Society
Pages1273-1276
Number of pages4
ISBN (Electronic)9781479970490
DOIs
Publication statusPublished - 2014 Oct 20
Externally publishedYes
Event2014 IEEE International Ultrasonics Symposium, IUS 2014 - Chicago, United States
Duration: 2014 Sep 32014 Sep 6

Publication series

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

Conference

Conference2014 IEEE International Ultrasonics Symposium, IUS 2014
Country/TerritoryUnited States
CityChicago
Period14/9/314/9/6

Keywords

  • limited-view
  • photoacoustic
  • wavefront shaping

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Fingerprint

Dive into the research topics of 'Focusing light within scattering media for photoacoustic tomography in a limited-view-angle tomography setting'. Together they form a unique fingerprint.

Cite this