Which of These Statements Accurately Describes Features of the Gradient

question 22

Multiple Choice

Which of these statements accurately describes features of the gradient field method used for improving MRI image resolution?

• A)The magnetic field is set to vary by three coils in three dimensions, producing very large changes of the field with gradients reaching up to 20 T.
• B)The magnetic field is set to vary by three coils in three dimensions, producing changes of the field with gradients in the range of millitesla.
• C)The magnetic field is set to vary by rotating fast in a circular path, producing very large changes of the field with gradients reaching up to 20 T.
• D)The magnetic field is set to vary by rotating fast in a circular path, producing changes of the field with gradients in the range of millitesla.

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