Take Precaution during Magnetic Resonance Imaging to Avoid Serious Hazards

Magnetic resonance imaging (MRI) is an imaging technique used in radiology to visualize detailed internal structure and function of the body. This diagnostic technique uses strong magnetic fields and radio waves to provide detailed images of internal body tissues. The device that carries out MRI scans is called a MRI scanner that contains a series of powerful magnets. Although MRI can provide important diagnostic information, doctors need to be careful about the several hazards associated with MRI.

The static magnetic field generated by MR systems attracts ferromagnetic objects with considerable force. The projectile effect leads to attraction of an object towards the magnet. Anything in the path of the object may be struck as the object moves towards the MR system. Individuals near the MR system can be injured by the projectile.

Before entering the scan room, the patient should be thoroughly screened for metal objects. Often people have implants in them. It can be dangerous for them to be in the presence of a strong magnetic field. People with pacemaker cannot go near the MRI scanner because the magnet can cause the pacemaker to malfunction. Metallic fragments in the eye, Aneurysm clips in the brain can be dangerous as the magnet can move them from the place of intent. Patients having an implant or a metallic object inside the body should be thoroughly investigated to make sure it is safe to scan them. For pregnant women, there might be biological effects on the developing fetus. So before scanning a pregnant woman, the MRI radiologist needs to consult the patient's obstetrician.

Identify zones in the MR suite and restrict access to these areas. Do not bring any device that has not been proven to be MR safe to the scanning room. MR safety officer needs to supervise and check the MR room for preventing hazards related to magnetic field-induced forces.


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