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Med Phys. 1995 Oct;22(10):1605-9.

Photoacoustic ultrasound (PAUS)--reconstruction tomography.

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  • 1Department of Radiology, Indiana University Medical Center, Indianapolis 46202-5111, USA.


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.

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