electrical impedance imaging;
magnetic induction;
magnetoacoustic (MA) generation;
tomography;
D O I:
10.1109/TBME.2007.912674
中图分类号:
R318 [生物医学工程];
学科分类号:
0831 ;
摘要:
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.
机构:
Univ Wales Hosp, Dept Med Phys & Clin Engn, Cardiff CF4 4XW, S Glam, WalesUniv Wales Hosp, Dept Med Phys & Clin Engn, Cardiff CF4 4XW, S Glam, Wales
机构:
Univ Wales Hosp, Dept Med Phys & Clin Engn, Cardiff CF4 4XW, S Glam, WalesUniv Wales Hosp, Dept Med Phys & Clin Engn, Cardiff CF4 4XW, S Glam, Wales