Title :
Comparative analysis of different hip implants within a realistic human model located inside a 1.5T MRI whole body RF coil
Author :
Mikhail Kozlov;Gregory M. Noetscher;Ara Nazarian;Sergey N. Makarov
Author_Institution :
Department of Neurophysics at the Max Plank Inst. for Human Cognitive and Brain Sciences in Leipzig, Germany
Abstract :
Temperature rise in surrounding tissues of a large orthopedic metallic implant subject to MRI is a significant point of concern today. Numerical electromagnetic and thermal modeling offers a way to model this complex problem with a sufficient degree of accuracy. We developed a workflow for realistic implant modeling, which includes an MRI coil, a multi-tissue human model, and accurately registered hip implants. We also obtained differences in the power loss density rises generated due to the presence of three hip implants placed in a phantom or a realistic human model, located inside a 1.5 T coil.
Keywords :
"Implants","Solid modeling","Magnetic resonance imaging","Phantoms","Finite element analysis","Hip","Bones"
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2015 37th Annual International Conference of the IEEE
Electronic_ISBN :
1558-4615
DOI :
10.1109/EMBC.2015.7320227