Quiz reviewing the basics of forming an MR image.
Remain unaffected
Decreased
Increase
Reverse direction
A gradient
Raw data
Digital
A fourier tansform
Stays the same
Increases
Decreases
Reverses directions
1 only
1 & 3
2 only
1 & 2
Oblique
Coronal
Transverse
Sagittal
Transmitted to all body parts in the vicinity of the RF antenna, or coil
Collimated to strike a thin slice of protons
Shielded from striking parts of the body which are not being imaged
Focussed at a specific section of the patient's body
Matched to the precessional frequency of the magnetization produced by protons which are exposed to the same magnetic field as the magnetic field of the MR system
42.7MHz
Matched to the precessional frequency of the magnetization of protons at that particular location
63.5 MHz
42.85
63.9
42.39
42.6
They are responsible for ensuring that all of the protons in the body simultaneously receive the RF energy
They provide the energy used to move the net magnetization of the protons into the transverse plane
They casue the precessional frequency to vary with position
They stabilize the magnetic field
Only the protons near the patient's head
Only protons on the patient's left side
Only protons in th ecenter of the magnet
None of the protons
1&3
1 &2
1, 2, & 3
2 & 3
Quiz Review Timeline (Updated): Jun 16, 2020 +
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