Magnetoacoustic Tomography With Magnetic Induction: A Rigorous Theory

In this letter, we have proposed a new theory on mechanism of the magnetoacoustic (MA) signal generation with magnetic induction for an object with an arbitrary shape. An object under a static magnetic field emits acoustic signals when excited by a time-varying magnetic field, and the acoustic wavef...

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Bibliographic Details
Published inIEEE transactions on biomedical engineering Vol. 55; no. 2; pp. 813 - 816
Main Authors Ma, Qingyu, He, Bin
Format Journal Article
LanguageEnglish
Published United States IEEE 01.02.2008
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Acoustic emission
Acoustic imaging
Acoustic waves
Acoustics
Bioimpedance
Boundaries
Conductivity
Diagnostic Imaging - methods
Electric Impedance
Electrical impedance imaging
Imaging phantoms
Induction generators
Magnetic fields
Magnetic induction
Magnetics
magnetoacoustic (MA) generation
Models, Theoretical
Shape
Signal generation
Signal generators
Tomography
Waveforms
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Summary:In this letter, we have proposed a new theory on mechanism of the magnetoacoustic (MA) signal generation with magnetic induction for an object with an arbitrary shape. An object under a static magnetic field emits acoustic signals when excited by a time-varying magnetic field, and the acoustic waveform is mainly generated at the conductivity boundaries within the object. The proposed theory on the MA tomography with magnetic induction produced highly consistent results among computational and experimental paradigms in a two-layer sample phantom and suggested the potential applications for bioimpedance imaging.
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ISSN:0018-9294
1558-2531
1558-2531
DOI:10.1109/TBME.2007.912674