期刊
IEEE TRANSACTIONS ON MEDICAL IMAGING
卷 21, 期 7, 页码 823-828出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMI.2002.801172
关键词
Fourier-domain reconstruction; planar; thermoacoustic tomography
类别
资金
- NCI NIH HHS [R21 CA83760, R01 CA71980] Funding Source: Medline
We report an exact and fast Fourier-domain reconstruction algorithm for thermoacoustic tomography in a planar configuration assuming thermal confinement and constant acoustic speed. The effects of the finite size of the detector and the finite length of the excitation pulse are explicitly included in the reconstruction algorithm. The algorithm is numerically and experimentally verified. We also demonstrate that the blurring caused by the finite size of the detector surface is the primary limiting factor on the resolution and that it can be compensated for by deconvolution.
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