Characterizing the limits of MRI near metallic prostheses

Purpose To characterize the fundamental limits of MRI near metallic implants on RF excitation, frequency encoding, and chemical shift–encoding water–fat separation. Methods Multicomponent three-dimensional (3D) digital models of a total hip and a total knee replacement were used to construct material-specific susceptibility maps. The fundamental limits and spatial relationship of imaging near metallic prostheses were investigated as a function...