Magnetoacoustic Tomography with Magnetic Stimulation (MAT-MS)
نویسندگان
چکیده
We have proposed a new imaging modality, magnetoacoustic tomography with magnetic stimulation (MAT-MS) to image the electrical impedance distribution. In this paper we report out pilot experimental study. In MAT-MS, the tissue is put in a static magnetic field and a pulsed ( s μ ) magnetic field. The pulsed magnetic field induces eddy current in the tissue. Consequently, the tissue will emit ultrasonic waves by the Lorenz force. The acoustic signals are collected around the object and processed to reconstruct the electrical impedance distribution in the tissue. A pilot experiment was conducted and we observed the signals from point metal objects and metal wire loops. Keywords—Magnetoacoustic tomography, magnetic stimulator, electrical impedance imaging, conductivity
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