@xray_1895: Why are metals prohibited in an MRI room?☠️🧲🚷⚠️ Magnetic resonance imaging (MRI) is one of the most important and safest diagnostic technologies, but the presence of metals inside or around the room poses a significant and direct risk. This is due to the nature of the machine's operation and its immense magnetic force. 1. Magnetic Attraction (Projectile Effect) Constant Magnetic Field: The machine uses a very strong magnet (typically between 1.5 and 3 Tesla, thousands of times stronger than Earth's magnet). Metals Become Projectiles: When any metal containing iron, nickel, or cobalt comes near the machine, it is attracted with tremendous speed and force, turning metal objects (such as scissors, pens, or keys) into dangerous projectiles that could strike the patient or damage the machine. 2. Interference and Heat Generation (Burns) The machine uses radio waves (RF) in addition to the magnetic field. In the presence of electrically conductive metals (even non-magnetic ones like some alloys), these metals may react with radio waves and generate thermoelectric currents, causing the metal to heat up rapidly and potentially resulting in severe skin burns to the patient. 3. Disruption of Electronic Medical Devices A strong magnetic field can disrupt or alter the settings of implanted electronic devices, such as: Pacemakers. Medical pumps and defibrillators. 4. Distortion of Medical Images The presence of any metallic object within the examination area causes significant interference with magnetic signals, resulting in blurred images (artifacts) and preventing the physician from making an accurate diagnosis. Safety Note: For this reason, the medical staff performs a thorough examination and comprehensive scan of the patient before entering to ensure they are free of any external (such as jewelry and mobile phones) or internal (such as shrapnel or incompatible metal fragments) metal objects. #mri #magnetic #dangerous #radiologia #radiology

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Friday 01 May 2026 16:42:51 GMT