Magnetic Resonance Imaging (MRI) Practice Test

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Prepare for your MRI Test with flashcards and diverse question types. Each question includes hints and explanations for better understanding. Boost your confidence and ace your exam!

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The energy used to form MRI images is ____ the patient's tissues.

absorbed by
emitted from
generated within
measured in

The correct answer is: emitted from

The correct choice is that the energy used to form MRI images is emitted from the patient's tissues. In MRI, the process begins with the application of a strong magnetic field that aligns the protons in the body's hydrogen atoms. When radiofrequency pulses are applied, the protons become temporarily excited and absorb energy. Once the energy source is turned off, these protons relax back to their original state, releasing energy in the form of radiofrequency signals. These emitted signals are detected by the MRI machine and are used to construct the images. Thus, the emitted energy is crucial for image formation, highlighting the relationship between the tissues and the MRI technology. This process allows for the distinction of various tissues based on their unique properties and response to the magnetic field and radiofrequency pulses.