Analysis of the role of shear waves in transcranial photoacoustic tomography with a planar geometry

Robert W. Schoonover; Lihong V. Wang; Mark A. Anastasio

doi:10.1117/12.907389

23 February 2012 Analysis of the role of shear waves in transcranial photoacoustic tomography with a planar geometry

Robert W. Schoonover, Lihong V. Wang, Mark A. Anastasio

Proceedings Volume 8223, Photons Plus Ultrasound: Imaging and Sensing 2012; 822320 (2012) https://doi.org/10.1117/12.907389
Event: SPIE BiOS, 2012, San Francisco, California, United States

Abstract

We report on an investigation of the role of shear waves in transcranial PAT brain imaging. Using a recently developed PAT image reconstruction method for use with layered media, we quantify the extent to which accounting for shear waves in the reconstruction method can improve image quality. The effects of shear waves propagating in the solid layer on the ability to estimate Fourier components of the object are investigated as a function of the thickness of the layer supporting shear waves as well as the incidence angle of the field in the planewave representation. These results clarify the role of shear waves in transcranial PAT image formation and indicate that further research is warranted to develop reconstruction algorithms that account for shear waves.

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Robert W. Schoonover, Lihong V. Wang, and Mark A. Anastasio "Analysis of the role of shear waves in transcranial photoacoustic tomography with a planar geometry", Proc. SPIE 8223, Photons Plus Ultrasound: Imaging and Sensing 2012, 822320 (23 February 2012); https://doi.org/10.1117/12.907389

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KEYWORDS

Solids

Acquisition tracking and pointing

Reconstruction algorithms

Thallium

Acoustics

Absorption

Bone

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