Two-Dimensional Lorentz Force Image Reconstruction for Magnetoacoustic Tomography with Magnetic Induction

Magnetoacoustic tomography with magnetic induction has shown potential applications in imaging the electrical impedance for biological tissues. We present a novel methodology for the inverse problem solution of the 2-D Lorentz force distribution reconstruction based on the acoustic straight line pro...

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Bibliographic Details
Published in:Chinese physics letters 2010-08, Vol.27 (8), p.102-105
Main Author: 李宜令 刘振波 马青玉 郭霞生 章东
Format: Article
Language:English
Subjects:
Acoustics
Lorentz force
Lorentz力
Magnetic induction
Mathematical models
Reconstruction
Straight lines
Stress concentration
Tomography
医学影像学
图像重建
声成像
洛伦兹力
生物组织
磁感应
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Summary:Magnetoacoustic tomography with magnetic induction has shown potential applications in imaging the electrical impedance for biological tissues. We present a novel methodology for the inverse problem solution of the 2-D Lorentz force distribution reconstruction based on the acoustic straight line propagation theory. The magnetic induction and acoustic generation as well as acoustic detection are theoretically provided as explicit formulae and also validated by the numerical simulations for a multilayered cylindrical phantom model. The reconstructed 2-D Lorentz force distribution reveals not only the conductivity configuration in terms of shape and size but also the amplitude value of the Lorentz force in the examined layer. This study provides a basis for further study of conductivity distribution reconstruction of MAT-MI in medical imaging.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/27/8/084302