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2002

Time-Domain Reconstruction for Thermoacoustic Tomography in a Spherical Geometry

9 years 3 months ago
Time-Domain Reconstruction for Thermoacoustic Tomography in a Spherical Geometry
Abstract--Reconstruction-based microwave-induced thermoacoustic tomography in a spherical configuration is presented. Thermoacoustic waves from biological tissue samples excited by microwave pulses are measured by a wide-band unfocused ultrasonic transducer, which is set on a spherical surface enclosing the sample. Sufficient data are acquired from different directions to reconstruct the microwave absorption distribution. An exact reconstruction solution is derived and approximated to a modified backprojection algorithm. Experiments demonstrate that the reconstructed images agree well with the original samples. The spatial resolution of the system reaches 0.5 mm.
Minghua Xu, Lihong V. Wang
Added 23 Dec 2010
Updated 23 Dec 2010
Type Journal
Year 2002
Where TMI
Authors Minghua Xu, Lihong V. Wang
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