Impact of device geometry on the imaging characteristics of an intravascular photoacoustic catheter

Min Wu; Krista Jansen; G Springeling; Ton van der Steen; Gijs van Soest

doi:10.1364/AO.53.008131

Impact of device geometry on the imaging characteristics of an intravascular photoacoustic catheter

Min Wu, Krista Jansen, G Springeling, Ton van der Steen, Gijs van Soest

Research output: Contribution to journal › Article › Academic › peer-review

16 Citations (Scopus)

Abstract

A basic requirement for intravascular photoacoustic (IVPA) imaging catheters is that the delivery of light lies within the ultrasonic field of view. Size and manufacturing constraints favor probe designs with offset optical and acoustic beams. This noncollinear dual beam arrangement leads to a curved PA point spread function (PSF). In this work, we characterize the three-dimensional shape of the PSF for IVPA imaging in clear and optically scattering media. We show that the product of the two beam profiles can accurately model the measured peak response in clear and scattering media. We discuss the impact of the PSF shape and its relation to probe construction. We test the imaging capability of the catheter on a phantom and a human artery ex vivo. (C) 2014 Optical Society of America.

Original language	Undefined/Unknown
Pages (from-to)	8131-8139
Number of pages	9
Journal	Applied Optics
Volume	53
Issue number	34
DOIs	https://doi.org/10.1364/AO.53.008131
Publication status	Published - 2014

Access to Document

10.1364/AO.53.008131

http://hdl.handle.net/1765/90082

Cite this

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abstract = "A basic requirement for intravascular photoacoustic (IVPA) imaging catheters is that the delivery of light lies within the ultrasonic field of view. Size and manufacturing constraints favor probe designs with offset optical and acoustic beams. This noncollinear dual beam arrangement leads to a curved PA point spread function (PSF). In this work, we characterize the three-dimensional shape of the PSF for IVPA imaging in clear and optically scattering media. We show that the product of the two beam profiles can accurately model the measured peak response in clear and scattering media. We discuss the impact of the PSF shape and its relation to probe construction. We test the imaging capability of the catheter on a phantom and a human artery ex vivo. (C) 2014 Optical Society of America.",

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AU - Jansen, Krista

AU - Springeling, G

AU - van der Steen, Ton

AU - van Soest, Gijs

PY - 2014

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AB - A basic requirement for intravascular photoacoustic (IVPA) imaging catheters is that the delivery of light lies within the ultrasonic field of view. Size and manufacturing constraints favor probe designs with offset optical and acoustic beams. This noncollinear dual beam arrangement leads to a curved PA point spread function (PSF). In this work, we characterize the three-dimensional shape of the PSF for IVPA imaging in clear and optically scattering media. We show that the product of the two beam profiles can accurately model the measured peak response in clear and scattering media. We discuss the impact of the PSF shape and its relation to probe construction. We test the imaging capability of the catheter on a phantom and a human artery ex vivo. (C) 2014 Optical Society of America.

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