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In vivo three-dimensional photoacoustic imaging based on a clinical matrix array ultrasound probe

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In vivo three-dimensional photoacoustic imaging based on a clinical matrix array ultrasound probe

Auteurs : Yu Wang [États-Unis] ; Todd N. Erpelding [États-Unis] ; Ladislav Jankovic [États-Unis] ; Zijian Guo [États-Unis] ; Jean-Luc Robert [États-Unis] ; Guillaume David [États-Unis] ; Lihong V. Wang [États-Unis]

Source :

Journal of Biomedical Optics [ 1083-3668 ] ; 2012.

RBID : PMC:3380932

Abstract

Abstract.

We present an integrated photoacoustic and ultrasonic three-dimensional (3-D) volumetric imaging system based on a two-dimensional (2-D) matrix array ultrasound probe. A wavelength-tunable dye laser pumped by a Q-switched Nd:YAG laser serves as the light source and a modified commercial ultrasound imaging system (iU22, Philips Healthcare) with a 2-D array transducer (X7-2, Philips Healthcare) detects both the pulse-echo ultrasound and photoacoustic signals. A multichannel data acquisition system acquires the RF channel data. The imaging system enables rendering of co-registered 3-D ultrasound and photoacoustic images without mechanical scanning. The resolution along the azimuth, elevation, and axial direction are measured to be 0.69, 0.90 and 0.84 mm for photoacoustic imaging. In vivo 3-D photoacoustic mapping of the sentinel lymph node was demonstrated in a rat model using methylene blue dye. These results highlight the clinical potential of 3-D PA imaging for identification of sentinel lymph nodes for cancer staging in humans.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3380932

DOI: 10.1117/1.JBO.17.6.061208
PubMed: 22734738
PubMed Central: 3380932

Affiliations:

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PMC:3380932

Le document en format XML

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 three-dimensional photoacoustic imaging based on a clinical matrix array ultrasound probe</title>
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 three-dimensional photoacoustic imaging based on a clinical matrix array ultrasound probe</title>
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<front><div type="abstract" xml:lang="en"><title>Abstract.</title>
<p>We present an integrated photoacoustic and ultrasonic three-dimensional (3-D) volumetric imaging system based on a two-dimensional (2-D) matrix array ultrasound probe. A wavelength-tunable dye laser pumped by a <inline-formula><mml:math id="M1"><mml:mrow><mml:mi>Q</mml:mi>
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-switched Nd:YAG laser serves as the light source and a modified commercial ultrasound imaging system (iU22, Philips Healthcare) with a 2-D array transducer (X7-2, Philips Healthcare) detects both the pulse-echo ultrasound and photoacoustic signals. A multichannel data acquisition system acquires the RF channel data. The imaging system enables rendering of co-registered 3-D ultrasound and photoacoustic images without mechanical scanning. The resolution along the azimuth, elevation, and axial direction are measured to be 0.69, 0.90 and 0.84 mm for photoacoustic imaging. <italic>In vivo</italic>
 3-D photoacoustic mapping of the sentinel lymph node was demonstrated in a rat model using methylene blue dye. These results highlight the clinical potential of 3-D PA imaging for identification of sentinel lymph nodes for cancer staging in humans.</p>
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In vivo three-dimensional photoacoustic imaging based on a clinical matrix array ultrasound probe

In vivo three-dimensional photoacoustic imaging based on a clinical matrix array ultrasound probe

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Abstract

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