| Static magnetic field |
Translational force: powerful attraction of ferromagnetic object to intense magnetic field. Rotational force/torque: rotation of object to align with the magnetic field |
“Missile effect”: acceleration of object into the bore of the magnet |
| Radiofrequency electromagnetic fields |
Heating owing to absorbed radiofrequency energy |
Tearing of tissues, pain and dislodgement of some implants |
| Electromagnetic interference |
Overheating burns (thermal, electrical) |
| Gradient magnetic field |
Induced currents in conductive tissues |
Device malfunction; imaging artefact |
| Induced currents in electrical devices |
Nerve and muscle stimulation |
| Device malfunction/failure |
