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Title: Photoacoustic phasoscopy super-contrast imaging

Phasoscopy is a recently proposed concept correlating electromagnetic (EM) absorption and scattering properties based on energy conservation. Phase information can be extracted from EM absorption induced acoustic wave and scattered EM wave for biological tissue characterization. In this paper, an imaging modality, termed photoacoustic phasoscopy imaging (PAPS), is proposed and verified experimentally based on phasoscopy concept with laser illumination. Both endogenous photoacoustic wave and scattered photons are collected simultaneously to extract the phase information. The PAPS images are then reconstructed on vessel-mimicking phantom and ex vivo porcine tissues to show significantly improved contrast than conventional photoacoustic imaging.
Authors:
; ;  [1]
  1. School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798 (Singapore)
Publication Date:
OSTI Identifier:
22300170
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 21; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION; ANIMAL TISSUES; ENERGY CONSERVATION; ILLUMINANCE; IMAGES; LASER RADIATION; PHANTOMS; PHOTONS; PLANT TISSUES; SCATTERING; SOUND WAVES