Spatially varying optical and acoustic property reconstruction using finite-element-based photoacoustic tomography

Huabei Jiang, Zhen Yuan, Xuejun Gu

Research output: Contribution to journalArticle

102 Scopus citations

Abstract

A finite-element reconstruction algorithm for simultaneous reconstruction of both optical and acoustic properties of heterogeneous media is presented. The algorithm is based on the Helmholtz-like photoacoustic wave equation in the frequency domain. A dual meshing scheme is described and an adjoint sensitivity method is adopted for efficient inverse computation. The algorithm is implemented with the second-order absorbing boundary conditions and with a multireceiving and multifrequency strategy. The algorithm is evaluated using simulated data under various practical cases including different noise levels, varied range of receiving frequency, different contrast levels between the heterogeneity and background region, and multiple targets. The effect of acoustic heterogeneity on conventional pure optical absorption reconstruction is also studied.

Original languageEnglish (US)
Pages (from-to)878-888
Number of pages11
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Volume23
Issue number4
DOIs
StatePublished - Apr 2006

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Computer Vision and Pattern Recognition

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