Title :
A non-invasive magnetic resonance biomedical system
Author :
Pradhan, Raunaq ; Li Yan ; Sai Ho Yeung ; Zheng Yuanjin
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
This paper proposes a pair of coils coupled by magnetic resonance coupling, which effectively induced a current at the biological medium for potential biomedical applications. Calculations and field estimation was done using finite element modeling software. Ferrite cores were added to the setup which showed larger induced current density in the tissue (more than 2 times) due to eddy current generation, as compared to the coils without core. Further, experiments were conducted with an animal tissue placed between two resonating coils, which showed similar results with an induced current of 0.07 mA using 1NI coil. Also, 1.6 times larger current was induced in the tissue when ferrite cores were used as compared to air core.
Keywords :
biological tissues; biomedical MRI; coils; eddy currents; finite element analysis; medical computing; animal tissue; biological medium; biological tissue; biomedical applications; current density; eddy current generation; ferrite cores; field estimation; finite element modeling software; noninvasive magnetic resonance biomedical system; resonating coils; Coils; Current measurement; Ferrites; Magnetic cores; Magnetic resonance; Radio frequency; Coil designs; RF ablation; ferrite cores; stimulation; thermoacoustic imaging;
Conference_Titel :
RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-Bio), 2014 IEEE MTT-S International Microwave Workshop Series on
Conference_Location :
London
Print_ISBN :
978-1-4799-5445-2
DOI :
10.1109/IMWS-BIO.2014.7032395
