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← ScienceWhich outcome occurs when a radio frequency (RF) wave used in Magnetic Resonance Imaging (MRI) has increased phase dispersion?
A)Image resolution decreases notably✓
B)Signal to noise ratio improves
C)Scan time can be reduced
D)Power deposition decreases rapidly
💡 Explanation
Increased phase dispersion in the RF wave causes transverse magnetization vectors to dephase more quickly due to T2* decay, therefore image signal decreases, and image resolution decreases noticeably rather than improving, because image resolution is dependent on signal coherence.
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