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← ScienceWhich outcome occurs when RF shielding fails during MRI operation?
A)Image artifacts become increasingly severe✓
B)Scanner's cryogens rapidly boil away
C)Gradient coils begin electromagnetic ringing
D)Subject heart rate pattern destabilizes severely
💡 Explanation
Severe image artifacts occur because ingress of external RF noise overwhelms the subtle signals during the Larmor precession detected by the MRI system; signal to noise ratio plummets rather than the system affecting cryogen behaviour or cardiac parameters because the fields interfere with information readout.
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