CONFERENCE PROCEEDINGS
Advanced Search
Home > Journals > J. Biomed. Opt. > Volume 24 > Issue 4 > Article
Open Access
26 April 2019 All-reflective ring illumination system for photoacoustic tomography
Suhail Salem Alshahrani, Yan Yan, Naser Alijabbari, Alexander Pattyn, Ivan Avrutsky, Eugene Malyarenko, Joemini Poudel, Mark Anastasio, Mohammad Mehrmohammadi
Author Affiliations +
Journal of Biomedical Optics, Vol. 24, Issue 4, 046004 (April 2019). https://doi.org/10.1117/1.JBO.24.4.046004
Abstract
Given that breast cancer is the second leading cause of cancer-related deaths among women in the United States, it is necessary to continue improving the sensitivity and specificity of breast imaging systems that diagnose breast lesions. Photoacoustic (PA) imaging can provide functional information during in vivo studies and can augment the structural information provided by ultrasound (US) imaging. A full-ring, all-reflective, illumination system for photoacoustic tomography (PAT) coupled to a full-ring US receiver is developed and tested. The US/PA tomography system utilizes a cone mirror and conical reflectors to optimize light delivery for PAT imaging and has the potential to image objects that are placed within the ring US transducer. The conical reflector used in this system distributes the laser energy over a circular cross-sectional area, thereby reducing the overall fluence. This, in turn, allows the operator to increase the laser energy achieving better cross-sectional penetration depth. A proof-of-concept design utilizing a single cone mirror and a parabolic reflector is used for imaging cylindrical phantoms with light-absorbing objects. For the given phantoms, it has been shown that there was no restriction in imaging a given targeted cross-sectional area irrespective of vertical depth, demonstrating the potential of mirror-based, ring-illuminated PAT system. In addition, the all-reflective ring illumination method shows a uniform PA signal across the scanned cross-sectional area.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
Citation Download Citation
Suhail Salem Alshahrani, Yan Yan, Naser Alijabbari, Alexander Pattyn, Ivan Avrutsky, Eugene Malyarenko, Joemini Poudel, Mark Anastasio, and Mohammad Mehrmohammadi "All-reflective ring illumination system for photoacoustic tomography," Journal of Biomedical Optics 24(4), 046004 (26 April 2019). https://doi.org/10.1117/1.JBO.24.4.046004
Received: 18 January 2019; Accepted: 8 April 2019; Published: 26 April 2019
JOURNAL ARTICLE
 7 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Lens.org Logo
CITATIONS
Cited by 12 scholarly publications.
Advertisement
Advertisement
KEYWORDS
Imaging systems
Reflectors
Transducers
Acquisition tracking and pointing
Photoacoustic tomography
Mirrors
Breast
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top