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TMI
2002
134views more  TMI 2002»
13 years 8 months ago
Exact Frequency-Domain Reconstruction for Thermoacoustic Tomography: II. Cylindrical Geometry
Microwave-induced thermoacoustic tomography (TAT) in a cylindrical configuration is developed to image biological tissue. Thermoacoustic signals are acquired by scanning a flat ult...
Yuan Xu, Minghua Xu, Lihong V. Wang
TMI
2008
109views more  TMI 2008»
13 years 7 months ago
Motion Compensated Fan-Beam Reconstruction for Nonrigid Transformation
We develop an approximate fan-beam algorithm to reconstruct an object with time-dependent nonrigid transformation such as the heart. The method is in the form of derivative backpro...
Katsuyuki Taguchi, Hiroyuki Kudo
TMI
2002
65views more  TMI 2002»
13 years 8 months ago
A Proof of the Spherical Homeomorphism Conjecture for Surfaces
The human cerebral cortex is topologically equivalent to a sphere when it is viewed as closed at the brain stem. Due to noise and/or resolution issues, magnetic resonance imaging m...
Lowell Abrams, Donniell E. Fishkind, Carey E. Prie...
TMI
2002
96views more  TMI 2002»
13 years 8 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...
Minghua Xu, Lihong V. Wang
TMI
2002
83views more  TMI 2002»
13 years 8 months ago
Vibro-acoustic Tissue Mammography
Abstract--A novel method for detection and imaging of microcalcifications in breast tissue is presented. The method, called vibro-acoustography, uses the radiation force of ultraso...
Mostafa Fatemi, Lester E. Wold, Azra Alizad, James...