Title :
The effect of the MRI radiofrequency field on medical leads embedded beneath skin tissue
Author :
Mohsin, S.A. ; Sheikh, N.M. ; Maalik, A.
Author_Institution :
Dept. of Electr. Eng., Univ. of Eng. & Technol., Lahore, Pakistan
Abstract :
The effect of skin tissue on the scattering of the MRI RF field by deep brain stimulation (DBS) leads is analyzed. RF induced heating occurs in the tissue surrounding the electrodes at the end of such a medical lead. The electric field and the induced temperature rise are found by solving the wave and heat equations. Spatial plots of the solutions are obtained. The presence of skin tissue also affects the transmission line behavior of the lead, and the resonant length; these effects are discussed.
Keywords :
biological effects of fields; biomedical MRI; biomedical electrodes; brain; prosthetics; skin; wave equations; MRI RF field; MRI radiofrequency field effect; RF induced heating; deep brain stimulation; electrodes; heat equations; induced temperature rise; medical leads; skin tissue; wave equations; Electric fields; Electrodes; Heating; Lead; Radio frequency; Satellite broadcasting; Skin;
Conference_Titel :
Electromagnetics in Advanced Applications (ICEAA), 2010 International Conference on
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4244-7366-3
DOI :
10.1109/ICEAA.2010.5653682
