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Abstract #1682

Hybrid structure design for implants: dramatic reduction of the metal artifacts

Toru Yamamoto 1 , Yanhui Gao 2 , and Kazuhiro Muramatsu 2

1 Faculty of Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan, 2 Department of Electrical and Electronic Engineering, Saga University, Saga, Japan

MR artifacts caused by implants are hindering proper diagnosis. Lowering the susceptibility of the material has been being developed, but even titanium is not enough for several diagnoses. To reduce these metal artifacts to a small area to enable diagnosis, we propose a new structural design of implants with hybrid of paramagnetic outer shell and diamagnetic inner core. The hybrid structure of paramagnetic and diamagnetic materials reduces the metal artifact of the implant dramatically. This structural design would be applied to various orthopedic implants.

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