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Photoacoustic ultrasound (PAUS)-Reconstruction tomography
June 04 1998
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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.