An object that is conductive but not metallic or magnetic is considered what?

An object that is conductive but not metallic or magnetic is classified as MR Conditional. This designation means that while the object is not strictly safe or unsafe in a magnetic resonance (MR) environment, it can be used under certain conditions.

Materials that are conductive typically have the capability to transmit electrical currents, which is pertinent in an MR setting due to the presence of strong magnetic fields. If an object is conductive but not metallic—such as certain plastics with conductive properties or composites—it does not respond magnetically to the scanner's magnetic field but may still pose potential safety risks depending on its design or intended use in the scanner.

In contrast, MR Safe items pose no safety risk in the MRI environment, and MR Unsafe items can be hazardous under all circumstances. Thus, since the conductive object is not classified as entirely safe or unsafe, it falls into the MR Conditional category, indicating that the use of the object must be carefully managed within specific guidelines to ensure patient and equipment safety.