Figure 1.

Metallic spinal implants used to examine safety issues in 7 T magnetic field. Magnetic‐field‐induced displacements and RF‐radiation‐induced temperature increases were assessed for cross‐linking bridge (diameter: 8 mm; length: 52 mm; titanium alloy), screw (diameter: 6.5 mm; length: 57 mm; titanium alloy/cobalt–chrome), rods (diameter: 5.5 mm; length: 50/100/150/200 mm; pure titanium/titanium alloy/cobalt–chrome), and parallel rods interconnected by cross‐linking bridges (length: 200 mm; pure titanium/titanium alloy/cobalt–chrome).