Keywords: Bone, Bone$$$B_1^+$$$ field inhomogeneity is a source of metal artifacts in patients with orthopedic hardware. Local $$$B_1^+$$$ shimming can potentially decrease these artifacts and improve visualization of the bone-metal interface. Our proposed turbo-spin echo-based $$$B_1^+$$$ mapping technique enables accurate estimation of the $$$B_1^+$$$ field near the metal hardware. After optimization for in-vivo applications, the technique was successfully employed on a clinical 3.0 T parallel-transmit system aiming at $$$B_1^+$$$ shimming near the orthopedic hardware. Our results demonstrate significant improvement in visualization of the bone-metal interface compared to standard 1.5 and 3.0 T acquisitions.
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