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Research Papers: Imaging

On the use of frequency-domain reconstruction algorithms for photoacoustic imaging

[+] Author Affiliations
Rainer Schulze

Austrian Academy of Sciences, Johann Radon Institute for Computational and Applied Mathematics, 4040 Linz, Austria

Gerhard Zangerl

University of Vienna, Computational Science Center, 1090 Vienna, Austria

Markus Holotta

Medical University Innsbruck, Department Radiology, 6020 Innsbruck, Austria

Dirk Meyer

Leopold-Franzens University Innsbruck, Institute for Molecular Biology, 6020 Innsbruck, Austria

Florian Handle

Medical University Innsbruck, Internal Medicine I, 6020 Innsbruck, Austria

Robert Nuster, Günther Paltauf

Karl-Franzens University Graz, Institute for Physics, 8010 Graz, Austria

Otmar Scherzer

Austrian Academy of Sciences, Johann Radon Institute for Computational and Applied Mathematics, 4040 Linz, Austria

University of Vienna, Computational Science Center, 1090 Vienna, Austria

J. Biomed. Opt. 16(8), 086002 (March 17, 2011June 06, 2011June 07, 2011August 01, 2011August 01, 2011). doi:10.1117/1.3605696
History: Received March 17, 2011; Revised June 06, 2011; Accepted June 07, 2011; Published August 01, 2011; Online August 01, 2011
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We investigate the use of a frequency-domain reconstruction algorithm based on the nonuniform fast Fourier transform (NUFFT) for photoacoustic imaging (PAI). Standard algorithms based on the fast Fourier transform (FFT) are computationally efficient, but compromise the image quality by artifacts. In our previous work we have developed an algorithm for PAI based on the NUFFT which is computationally efficient and can reconstruct images with the quality known from temporal backprojection algorithms. In this paper we review imaging qualities, such as resolution, signal-to-noise ratio, and the effects of artifacts in real-world situations. Reconstruction examples show that artifacts are reduced significantly. In particular, image details with a larger distance from the detectors can be resolved more accurately than with standard FFT algorithms.

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© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation

Rainer Schulze ; Gerhard Zangerl ; Markus Holotta ; Dirk Meyer ; Florian Handle, et al.
"On the use of frequency-domain reconstruction algorithms for photoacoustic imaging", J. Biomed. Opt. 16(8), 086002 (March 17, 2011June 06, 2011June 07, 2011August 01, 2011August 01, 2011). ; http://dx.doi.org/10.1117/1.3605696


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