Exam-style question
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What is the role of resonance in the detection of signals in MRI?.
- A.It allows for the measurement of temperature changes.
- B.It enhances the contrast of images produced by X-rays.
- C.It enables the detection of emitted signals from excited nuclei.
- D.It reduces the time required for imaging.
Model answer
What a good answer should say
- It enables the detection of emitted signals from excited nuclei.
Explanation
Why this works
Resonance allows MRI to detect signals emitted from excited hydrogen nuclei after they return to their aligned state, which is crucial for image formation.
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