Title :
MRI induced heating for fully implanted, partially implanted and minimum implanted medical electrode leads
Author :
Qi Zeng ; Jianfeng Zheng ; Ji Chen
Author_Institution :
Dept. of Electr. Eng., Univ. of Houston, Houston, TX, USA
Abstract :
One of the most critical MRI safety concerns for patients with medical implants is the RF coil induced heating in the vicinity of medical electrode lead tip. In this study, temperature rises for different lead path configurations are evaluated using transfer function method. Lead tip heating along three configurations: fully implanted, partially implanted, and minimum implanted medical electrode leads are evaluated in both adult male and boy models. The lead length is 40 cm and the maximum temperature rise is 3.19 °C when normalized to 2 WIkg.
Keywords :
biomedical MRI; biomedical electrodes; biothermics; prosthetics; MRI induced heating; RF coil induced heating; critical MRI safety concerns; fully implanted medical electrode leads; lead length; lead path configurations; medical electrode lead tip; minimum implanted medical electrode leads; partially implanted medical electrode leads; size 40 cm; transfer function method; Electric fields; Electrodes; Heating; Lead; Magnetic resonance imaging; Radio frequency; Transfer functions; Implant; MRI; transfer function; virtual family;
Conference_Titel :
Applied Computational Electromagnetics (ACES), 2015 31st International Review of Progress in
Conference_Location :
Williamsburg, VA
