Image distortion in thermoacoustic tomography caused by microwave diffraction
- 28 March 2008
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 77 (3) , 031923
- https://doi.org/10.1103/physreve.77.031923
Abstract
We report an intrinsic image distortion in microwave-induced thermoacoustic tomography. The distortion, due to microwave diffraction in the object to be imaged, leads to nonuniform excitation of acoustic pressure during microwave illumination. Both numerical simulations and phantom experiments demonstrate this phenomenon. A method of partial correction is also provided.Keywords
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