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Broadening the detection view of high-frequency linear-array-based photoacoustic computed tomography by using planar acoustic reflectors

  • Guo Li
  • , Jun Xia
  • , Konstantin I. Maslov
  • , Lihong V. Wang
  • Washington University St. Louis

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

Photoacoustic computed tomography (PACT) with a linear transducer array suffers from limited detection view. To increase the detection aperture, it is possible to circularly scan the linear transducer array around the object at the expense of imaging speed. Here we propose an alternative method to double or triple the detection view angle without sacrificing the imaging speed. By using a planar acoustic reflector which creates a virtual linear transducer array, the detection view angle is doubled. Similarly, by using two planar acoustic reflectors placed at 120 degrees to each other, we can form two virtual linear transducer arrays, and the detection view angle is tripled. This paper comparatively studies the two cases. We found that the planar acoustic reflectors greatly increase the detection aperture and thus significantly enhance the image quality of linear-array-base PACT systems.

Original languageEnglish
Title of host publicationPhotons Plus Ultrasound
Subtitle of host publicationImaging and Sensing 2014
PublisherSPIE
ISBN (Print)9780819498564
DOIs
StatePublished - 2014
EventPhotons Plus Ultrasound: Imaging and Sensing 2014 - San Francisco, CA, United States
Duration: Feb 2 2014Feb 5 2014

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8943
ISSN (Print)1605-7422

Conference

ConferencePhotons Plus Ultrasound: Imaging and Sensing 2014
Country/TerritoryUnited States
CitySan Francisco, CA
Period02/2/1402/5/14

Keywords

  • Acoustic reflector
  • High frequency
  • Limited view
  • Linear transducer array
  • Photoacoustic computed tomography

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