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← ScienceWhich outcome occurs when an MRI gradient coil exceeds its slew rate?
A)Image artifacts and geometric distortion✓
B)Increased signal-to-noise ratio (SNR)
C)Reduced energy consumption in amplifiers
D)Faster echo time (TE) acquisition
💡 Explanation
Image artifacts occur because gradient slew rates limit the speed of spatial encoding, and exceeding slew limits leads to non-linear spatial mapping via gradient saturation, therefore geometric distortion arises rather than improvements SNR, energy or TE.
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