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dc.contributor.authorTick, J
dc.contributor.authorPulkkinen, A
dc.contributor.authorLucka, F
dc.contributor.authorEllwood, R
dc.contributor.authorCox, BT
dc.contributor.authorKaipio, JP
dc.contributor.authorArridge, SR
dc.contributor.authorTarvainen, T
dc.date.accessioned2018-11-14T11:33:16Z
dc.date.available2018-11-14T11:33:16Z
dc.date.issued2018
dc.identifier.urihttps://erepo.uef.fi/handle/123456789/7169
dc.description.abstractThe image reconstruction problem (or inverse problem) in photoacoustic tomography is to resolve the initial pressure distribution from detected ultrasound waves generated within an object due to an illumination by a short light pulse. Recently, a Bayesian approach to photoacoustic image reconstruction with uncertainty quantification was proposed and studied with two dimensional numerical simulations. In this paper, the approach is extended to three spatial dimensions and, in addition to numerical simulations, experimental data are considered. The solution of the inverse problem is obtained by computing point estimates, i.e., maximum a posteriori estimate and posterior covariance. These are computed iteratively in a matrix-free form using a biconjugate gradient stabilized method utilizing the adjoint of the acoustic forward operator. The results show that the Bayesian approach can produce accurate estimates of the initial pressure distribution in realistic measurement geometries and that the reliability of these estimates can be assessed.
dc.language.isoenglanti
dc.publisherAcoustical Society of America (ASA)
dc.relation.ispartofseriesJOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
dc.relation.urihttp://dx.doi.org/10.1121/1.5057109
dc.rightsCC BY http://creativecommons.org/licenses/by/4.0/
dc.titleThree dimensional photoacoustic tomography in Bayesian framework
dc.description.versionpublished version
dc.contributor.departmentDepartment of Applied Physics, activities
uef.solecris.id58415015en
dc.type.publicationTieteelliset aikakauslehtiartikkelit
dc.rights.accessrights© Authors
dc.relation.doi10.1121/1.5057109
dc.description.reviewstatuspeerReviewed
dc.relation.articlenumber2061
dc.relation.issn1520-8524
dc.relation.issue4
dc.relation.volume144
dc.rights.accesslevelopenAccess
dc.type.okmA1
uef.solecris.openaccessHybridijulkaisukanavassa ilmestynyt avoin julkaisu


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