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← ScienceWhich risk escalates when an MRI gradient coil's resonant frequency approaches pulse sequence frequency?
A)Increased eddy current artefact✓
B)Higher specific absorption rate
C)Reduced signal to noise ratio
D)Diminished magnetic field strength
💡 Explanation
Increased eddy current artefact risk escalates because resonant frequencies can drive increased currents; this phenomenon is inductive coupling. Therefore, eddy current artefacts rise, rather than improvements because increased RF energy causes heating and distorts magnetic fields.
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