Title :
Computational and experimental studies of orthopedic implants heating under MRI RF coils
Author :
Liu, Yan ; Chen, Ji ; Shellock, Frank ; Kainz, Wolfgang
Author_Institution :
Department of Electrical and Computer Engineering, University of Houston, TX 77204, USA
Abstract :
The heating of orthopedic implants under MRI RF fields were investigated 1.5T and 3T systems. Modeling and experiments were performed on an orthopedic device at different sizes inside an ASTM phantom. It is observed that the induced energy deposition near the device is almost linearly related to the dimension of the orthopedic implants when the device is less than 10 cm in length. Higher temperature rises were found in 1.5T for both computational and experimental studies.
Keywords :
Coils; Conductors; Heating; Magnetic field measurement; Magnetic resonance; Radio frequency; MRI Safety; electromagnetic modeling; heating; medical implants;
Conference_Titel :
Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International
Conference_Location :
Montreal, QC, Canada
Print_ISBN :
978-1-4673-1085-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2012.6259617
