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Anatomical and metabolic small-animal whole-body imaging using ring-shaped confocal photoacoustic computed tomography

  • Jun Xia
  • , Muhammad Chatni
  • , Konstantin Maslov
  • , Lihong V. Wang
  • Washington University St. Louis

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

4 Scopus citations

Abstract

Due to the wide use of animals for human disease studies, small animal whole-body imaging plays an increasingly important role in biomedical research. Currently, none of the existing imaging modalities can provide both anatomical and glucose metabolic information, leading to higher costs of building dual-modality systems. Even with image coregistration, the spatial resolution of the metabolic imaging modality is not improved. We present a ring-shaped confocal photoacoustic computed tomography (RC-PACT) system that can provide both assessments in a single modality. Utilizing the novel design of confocal full-ring light delivery and ultrasound transducer array detection, RC-PACT provides full-view cross-sectional imaging with high spatial resolution. Scanning along the orthogonal direction provides three-dimensional imaging. While the mouse anatomy was imaged with endogenous hemoglobin contrast, the glucose metabolism was imaged with a near-infrared dye-labeled 2-deoxyglucose. Through mouse tumor models, we demonstrate that RC-PACT may be a paradigm shifting imaging method for preclinical research.

Original languageEnglish
Title of host publicationPhotons Plus Ultrasound
Subtitle of host publicationImaging and Sensing 2013
PublisherSPIE
ISBN (Print)9780819493507
DOIs
StatePublished - Mar 4 2013
EventPhotons Plus Ultrasound: Imaging and Sensing 2013 - San Francisco, CA, United States
Duration: Feb 3 2013Feb 5 2013

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8581
ISSN (Print)1605-7422

Conference

ConferencePhotons Plus Ultrasound: Imaging and Sensing 2013
Country/TerritoryUnited States
CitySan Francisco, CA
Period02/3/1302/5/13

Keywords

  • metabolic imaging
  • Photoacoustic computed tomography
  • small-animal whole-body imaging

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