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Which consequence results when asynchronous magnetic fields degrade MRI resolution?

A)Gradient nonlinearity causes spatial distortion
B)RF interference induces sample heating
C)Main field drift affects signal strength
D)Shim coil failure reduces homogeneity

💡 Explanation

Gradient nonlinearity causes spatial distortion because magnetic isochromat positions deviate. This deviation then causes the gradients, a part of spatial encoding, to become non-linear; therefore the image becomes distorted rather than displaying an accurate scan representation.

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