Hybrid structure design for implants: dramatic reduction of the metal artifacts
Toru Yamamoto 1 , Yanhui Gao 2 , and Kazuhiro Muramatsu 2
Faculty of Health Sciences, Hokkaido
University, Sapporo, Hokkaido, Japan,
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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