All of the following are true regarding the gyromagnetic ratio EXCEPT
A) it is a constant.
B) it relates angular momentum and magnetic moment.
C) it is characteristic of each nuclei.
D) it relates the number of spin-up and spin-down nuclei.
Correct Answer:
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Q2: Which scan parameter determines the amount of
Q3: In a strong magnetic field, hydrogen atoms
Q4: If energy is delivered to the hydrogen
Q5: The magnetic moment describes the magnetic field
Q6: The most common MRI scanner used in
Q7: T1 is also referred to as MXY.
Q8: A T2-weighted image is useful for the
Q9: Contrast is controlled by varying
A)resonance.
B)precession.
C)pulse sequences.
D)the gyromagnetic
Q10: T2 refers to the recovery of transverse
Q11: There is a risk of thermal injury
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