document: Exact frequency-domain reconstruction for thermoacoustic tomography . II . Cylindrical geometry For pt . I see ibid. , vol . 21 , no. 7 , p. 823-8 -LRB- 2002 -RRB- . Microwave-induced thermoacoustic tomography -LRB- TAT -RRB- in a cylindrical configuration is developed to image biological tissue . Thermoacoustic signals are acquired by scanning a flat ultrasonic transducer . Using a new expansion of a spherical wave in cylindrical coordinates , we apply the Fourier and Hankel transforms to TAT and obtain an exact frequency-domain reconstruction method . The effect of discrete spatial sampling on image quality is analyzed . An aliasing-proof reconstruction method is proposed . Numerical and experimental results are included
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