30. Equipments surrounding MRI is made out of plastics instead of metal mainly because a Plastics are light in weight O b. Plastics are economical, O c. MRI has not ability to attract metal object, O d. Metal objects may fly towards the magnetized unit,
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From the given question the correct answer is
d. Metal objects may fly towards the magnetized unit.
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Answer:
The correct option is
d. Metal objects may fly towards the magnetized unit
Explanation:
An MRI system usually uses a superconducting magnet. Magnetic fields are generated by coils and windings of metal transmitting an electric current, which generates fields with a 2 Tesla magnetic field.
When metal is present in an MRI, it can be a serious problem, since
- During the scanning process, magnetic metals can be subjected to a force.
- The RF magnetic field can induce currents and heat in long wires (such as in pacemakers).
- Magnetic fields caused by metals are inhomogeneous (B0).
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