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← TechnologyWhich risk increases when compressed sensing algorithms reconstruct MRI data?
A)Artifact introduction at high frequencies✓
B)Reduced signal-to-noise ratio uniformly
C)Prolonged sequence duration needed
D)Complete inability to form images
💡 Explanation
Artifact introduction increases because inaccurate sampling leads to aliasing, where high-frequency signals are misinterpreted as low-frequency signals via the Discrete Fourier Transform. Therefore images will show high frequency artifacts rather than reduce signal to noise.
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