Appraising the potential of Zr-based biomedical alloys to reduce magnetic resonance imaging artifacts
Anderson Kiyoshi Suzuki, Kaio Niitsu Campo, Eduardo Bertoni da Fonseca, Luana Caldeira Araújo, F. C. G. Gandra, Éder Sócrates Najar Lopes
Abstract
This study compared Zr-Mo alloys with commercial metallic biomaterials. It was observed that the Zr-Mo alloys exhibited favourable mechanical properties, particularly the Zr-10Mo alloy, which showed the highest strength to Young's modulus ratio among all evaluated metals. These alloys also exhibited the lowest magnetic susceptibilities, which are important for magnetic resonance imaging (MRI). However, both Zr- and Ti-based metals yielded comparable artifacts. It was concluded that the magnetic susceptibility must differ considerably to afford significantly improved MRI quality owing to the increased importance of non-susceptibility-related artifacts when comparing materials with relatively similar magnetic susceptibilities.