Assessing the performance and limits of an optoacoustic image reconstruction algorithm using computer-simulated experimental measurements

Steven Jacques

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An optoacoustic imaging algorithm uses backprojection of the time-resolved velocity potential to map the sources of pressure waves detected by an array of acoustic detectors. The relationship between pressure (P) and velocity potential (vp) is P = -rho*d(vp)/dt, or vp = -Integral(P dt)/rho where rho is density, t is time, and d(vp)/dt is the time derivative of the velocity potential. In a forward calculation, a computer simulation can predict the complex pressure waves arriving at each of an array of detectors due to any arbitrary spatial distribution of initial pressure generation. In an inverse calculation, such computer-simulated experimental measurements are used to spatially map the initial pressure source which in optoacoustic imaging corresponds to the initial distribution of pulsed laser energy deposition. Hence, the performance of the inverse calculation as an image reconstruction algorithm could be tested using ideal computer-simulated data. In this report, the image reconstruction algorithm was systematically tested to specify the expected performance under optimal conditions, to illustrate the source/detector geometries that frustrate image reconstruction, and to assess the impact of measurement noise. Typical reconstruction errors were +/- 20%.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsA.A. Oraevsky
Pages146-152
Number of pages7
Volume4618
DOIs
StatePublished - 2002
EventBiomedical Optoacoustics III - San Jose, CA, United States
Duration: Jan 20 2002Jan 21 2002

Other

OtherBiomedical Optoacoustics III
CountryUnited States
CitySan Jose, CA
Period1/20/021/21/02

Fingerprint

Photoacoustic effect
image reconstruction
Image reconstruction
Detectors
elastic waves
detectors
Imaging techniques
noise measurement
Pulsed lasers
Spatial distribution
pulsed lasers
spatial distribution
computerized simulation
Acoustics
Derivatives
acoustics
Geometry
Computer simulation
geometry

Keywords

  • Biomedical optics
  • Imaging
  • Optoacoustic
  • Photoacoustic

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Jacques, S. (2002). Assessing the performance and limits of an optoacoustic image reconstruction algorithm using computer-simulated experimental measurements. In A. A. Oraevsky (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4618, pp. 146-152) https://doi.org/10.1117/12.469859

Assessing the performance and limits of an optoacoustic image reconstruction algorithm using computer-simulated experimental measurements. / Jacques, Steven.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / A.A. Oraevsky. Vol. 4618 2002. p. 146-152.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Jacques, S 2002, Assessing the performance and limits of an optoacoustic image reconstruction algorithm using computer-simulated experimental measurements. in AA Oraevsky (ed.), Proceedings of SPIE - The International Society for Optical Engineering. vol. 4618, pp. 146-152, Biomedical Optoacoustics III, San Jose, CA, United States, 1/20/02. https://doi.org/10.1117/12.469859
Jacques S. Assessing the performance and limits of an optoacoustic image reconstruction algorithm using computer-simulated experimental measurements. In Oraevsky AA, editor, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4618. 2002. p. 146-152 https://doi.org/10.1117/12.469859
Jacques, Steven. / Assessing the performance and limits of an optoacoustic image reconstruction algorithm using computer-simulated experimental measurements. Proceedings of SPIE - The International Society for Optical Engineering. editor / A.A. Oraevsky. Vol. 4618 2002. pp. 146-152
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