题目内容

In an MRI magnet system the gradient coils are placed:

A. ) between the magnet cryostat and the magnet coils
B. ) between the shim coils and the RF coil
C. ) between the RF coil and the patient

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The direction of muscle fibres or neurons in the brain can be detected by:

A. ) measuring the wash-in and wash-out of the bolus of a contrast agent delivered.
B. ) measuring blood flow by encoding moving spins in the blood.
C. ) measuring the predominance of water diffusion in a particular direction.

认真看上方的第三张图像膀胱上方有一些额外的物体 你能识别它吗? ______

14. If you get injected with a radiopharmaceutical for a PET scan, you become permanently radioactive.

A. True
B. False

13. A 3T MRI scanner, commonly used in clinical practice, has 60,000 times the force of the Earth’s magnetic field.

A. True
B. False

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