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Photoacoustic reflection artifact reduction using photoacoustic-guided focused ultrasound: comparison between plane-wave and element-by-element synthetic backpropagation approach.

作者信息

Singh Mithun Kuniyil Ajith, Jaeger Michael, Frenz Martin, Steenbergen Wiendelt

机构信息

Biomedical Photonic Imaging Group, MIRA institute for Biomedical Technology and Technical Medicine, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.

Institute of Applied Physics, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland.

出版信息

Biomed Opt Express. 2017 Mar 20;8(4):2245-2260. doi: 10.1364/BOE.8.002245. eCollection 2017 Apr 1.


DOI:10.1364/BOE.8.002245
PMID:28736669
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5516831/
Abstract

Reflection artifacts caused by acoustic inhomogeneities constitute a major problem in epi-mode biomedical photoacoustic imaging. Photoacoustic transients from the skin and superficial optical absorbers traverse into the tissue and reflect off echogenic structures to generate reflection artifacts. These artifacts cause difficulties in the interpretation of images and reduce contrast and imaging depth. We recently developed a method called PAFUSion (photoacoustic-guided focused ultrasound) to circumvent the problem of reflection artifacts in photoacoustic imaging. We already demonstrated that the photoacoustic signals can be backpropagated using synthetic aperture pulse-echo data for identifying and reducing reflection artifacts . In this work, we propose an alternative variant of PAFUSion in which synthetic backpropagation of photoacoustic signals is based on multi-angled plane-wave ultrasound measurements. We implemented plane-wave and synthetic aperture PAFUSion in a handheld ultrasound/photoacoustic imaging system and demonstrate reduction of reflection artifacts in phantoms and measurements on a human finger using both approaches. Our results suggest that, while both approaches are equivalent in terms of artifact reduction efficiency, plane-wave PAFUSion requires less pulse echo acquisitions when the skin absorption is the main cause of reflection artifacts.

摘要

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Photoacoustic reflection artifact reduction using photoacoustic-guided focused ultrasound: comparison between plane-wave and element-by-element synthetic backpropagation approach.

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[2]
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本文引用的文献

[1]
Photoacoustic-guided focused ultrasound (PAFUSion) for identifying reflection artifacts in photoacoustic imaging.

Photoacoustics. 2015-9-28

[2]
Photoacoustic-guided focused ultrasound for accurate visualization of brachytherapy seeds with the photoacoustic needle.

J Biomed Opt. 2016-12-1

[3]
In vivo demonstration of reflection artifact reduction in photoacoustic imaging using synthetic aperture photoacoustic-guided focused ultrasound (PAFUSion).

Biomed Opt Express. 2016-7-11

[4]
Photoacoustic clutter reduction by inversion of a linear scatter model using plane wave ultrasound measurements.

Biomed Opt Express. 2016-3-24

[5]
Tutorial on photoacoustic tomography.

J Biomed Opt. 2016-6

[6]
Quantitative blood oxygen saturation imaging using combined photoacoustics and acousto-optics.

Opt Lett. 2016-4-15

[7]
The state of the art in breast imaging using the Twente Photoacoustic Mammoscope: results from 31 measurements on malignancies.

Eur Radiol. 2016-11

[8]
Performance characteristics of an interventional multispectral photoacoustic imaging system for guiding minimally invasive procedures.

J Biomed Opt. 2015-8

[9]
In vivo visualization of prostate brachytherapy seeds with photoacoustic imaging.

J Biomed Opt. 2014-12

[10]
Effect of irradiation distance on image contrast in epi-optoacoustic imaging of human volunteers.

Biomed Opt Express. 2014-10-1

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