Visualization of photoacoustic images in a limited-View measuring system using eigenvalues of a photoacoustic transmission matrix

• Abe, Hiroshi

  Graduate school of medicine, Kyoto University

• Shiina, Tsuyoshi

  Graduate school of medicine, Kyoto University

Abstract

Photoacoustic imaging is a unique imaging method that involves extracting information from points at different depths, an advantage of ultrasound imaging, while maintaining functional information, a key feature of conventional photo imaging. This makes it easy to add functional images to ultrasound images by adding a laser pulse source to the conventional ultrasound imaging device and detecting a photo-ultrasound signal via a conventional ultrasound probe. One challenge when using normal one-dimensional (1D) probes and generating photoacoustic images is the limited-view problem, in which artefacts are observed due to the positions of the ultrasound transducers. In this study, we used a photoacoustic transmission matrix (PA-TM) for simulation and performed a verification test using a 1D probe and a phantom. The results confirmed that the eigenvalues of the PA-TM visualized the light absorber itself in the limited-view measurement system, which eliminates reconstruction artefacts and further scattering artefacts, and that visualization is possible by signal intensity amplification through further phase modulation.

Journal

• Photoacoustics

  Photoacoustics 8 1-7, 2017-12

  Elsevier GmbH

Keywords

• Radiology, Nuclear Medicine and imaging
• Atomic and Molecular Physics, and Optics

Details

• CRID: 1050564285808119680
• NII Article ID: 120006394778
• ISSN: 22135979
• DOI: 10.1016/j.pacs.2017.06.003
• HANDLE: 2433/229123
• Web Site: https://api.elsevier.com/content/article/PII:S2213597916300702?httpAccept=text/xml
• Web Site: https://api.elsevier.com/content/article/PII:S2213597916300702?httpAccept=text/plain
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN