title: Photoacoustic ultrasound (PAUS)--reconstruction tomography.
abstract: The theoretical underpinnings of photoacoustic ultrasound (PAUS) reconstruction tomography are presented. A formal relationship between PAUS signals and the heterogeneous distribution of optical absorption within the object being investigated is developed. Based on this theory, a reconstruction approach, analogous to that used in x-ray computed tomography, is suggested. Initial experimental results suggest that this approach produces "reasonable" reconstructions for absorbers distributed within a narrow plane embedded within a highly scattering medium.
authors.affiliation: Department of Radiology, Indiana University Medical Center, Indianapolis 46202-5111, USA.
authors.forename: R A
authors.initials: RA
authors.lastname: Kruger
authors.forename: P
authors.initials: P
authors.lastname: Liu
authors.forename: Y R
authors.initials: YR
authors.lastname: Fang
authors.forename: C R
authors.initials: CR
authors.lastname: Appledorn
mesh_terms: D000162:Acoustics; D006801:Humans; D008433:Mathematics; D008962:Models, Theoretical; D019047:Phantoms, Imaging; D012542:Scattering, Radiation; D014056:Tomography, X-Ray; D014463:Ultrasonography