Photoacoustic imaging by using a bundle of thin hollow-optical fibers

A. Seki, K. Iwai, T. Katagiri, Y. Matsuura

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

3 Citations (Scopus)

Abstract

We propose a photoacoustic imaging system composed of a flexible bundle of thin hollow-optical fibers that enables endoscopic diagnosis. The hollow-fiber bundle involves 37 fibers with an inner diameter of 100 μm and the total diameter of the bundle is 1.2 mm. A laser beam for photoacoustic excitation is scanned at the input end of fiber bundle and therefore, no scanning mechanism is necessary at the distal end. In addition, owing to the small numerical aperture of hollow optical fibers, a high resolution image is obtained without using a micro-lens array at the end. By using the fiber bundle probe, photoacoustic imaging of blood vessels in the ovarian membrane of fish were successfully obtained with a laser fluence of around 2.8 mJ/cm2.

Original languageEnglish
Title of host publicationOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVI
EditorsIsrael Gannot
PublisherSPIE
ISBN (Electronic)9781628419368
DOIs
Publication statusPublished - 2016
EventOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVI - San Francisco, United States
Duration: 2016 Feb 132016 Feb 14

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume9702
ISSN (Print)1605-7422

Other

OtherOptical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVI
CountryUnited States
CitySan Francisco
Period16/2/1316/2/14

Keywords

  • Hollow optical fiber
  • Photoacoustic imaging
  • Ultrasound

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging

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