ARRT Review - MRI Registry Review
Program Questions and Answers Latest
Version Already Passed
Which MRI sequence best highlights fluid-filled structures?
A) T1-weighted
✔✔B) T2-weighted
C) Gradient echo
D) Spin echo
What is the function of gradient coils in MRI?
✔✔A) To spatially encode the MRI signal
B) To cool down the magnet
C) To enhance contrast agents
D) To suppress fat signals
Which of the following best describes echo time (TE) in MRI?
✔✔A) The time between the RF pulse and signal reception
B) The time between two gradient pulses
1
,C) The time required to acquire the entire image
D) The time needed for contrast agent circulation
Which MRI sequence is best for detecting acute ischemic stroke?
✔✔A) Diffusion-weighted imaging (DWI)
B) T1-weighted
C) Proton density
D) MR angiography
What is the main advantage of using phased-array coils?
A) They produce a stronger main magnetic field
✔✔B) They improve signal-to-noise ratio
C) They reduce scan time significantly
D) They eliminate motion artifacts
Which type of artifact appears as a loss of signal near metal implants?
✔✔A) Susceptibility artifact
B) Chemical shift artifact
2
,C) Motion artifact
D) Gibbs artifact
What is the purpose of fat suppression techniques in MRI?
A) To enhance muscle signal
✔✔B) To reduce fat signal for better contrast
C) To improve spatial resolution
D) To prevent overheating of tissues
Which parameter controls the number of slices in an MRI scan?
A) TR
B) TE
✔✔C) Slice thickness
D) Flip angle
Which condition is an absolute contraindication for MRI?
✔✔A) Cochlear implants
B) Claustrophobia
3
, C) Pregnancy
D) Hypertension
Which type of magnet is most commonly used in modern MRI scanners?
A) Permanent magnet
B) Resistive magnet
✔✔C) Superconducting magnet
D) Electromagnet
What is the purpose of the RF pulse in MRI?
A) To produce images directly
✔✔B) To excite hydrogen protons
C) To create the magnetic field
D) To detect tissue density
What is the primary role of gadolinium contrast in MRI?
✔✔A) To enhance the visibility of blood vessels and tumors
B) To shorten scan times
4
Program Questions and Answers Latest
Version Already Passed
Which MRI sequence best highlights fluid-filled structures?
A) T1-weighted
✔✔B) T2-weighted
C) Gradient echo
D) Spin echo
What is the function of gradient coils in MRI?
✔✔A) To spatially encode the MRI signal
B) To cool down the magnet
C) To enhance contrast agents
D) To suppress fat signals
Which of the following best describes echo time (TE) in MRI?
✔✔A) The time between the RF pulse and signal reception
B) The time between two gradient pulses
1
,C) The time required to acquire the entire image
D) The time needed for contrast agent circulation
Which MRI sequence is best for detecting acute ischemic stroke?
✔✔A) Diffusion-weighted imaging (DWI)
B) T1-weighted
C) Proton density
D) MR angiography
What is the main advantage of using phased-array coils?
A) They produce a stronger main magnetic field
✔✔B) They improve signal-to-noise ratio
C) They reduce scan time significantly
D) They eliminate motion artifacts
Which type of artifact appears as a loss of signal near metal implants?
✔✔A) Susceptibility artifact
B) Chemical shift artifact
2
,C) Motion artifact
D) Gibbs artifact
What is the purpose of fat suppression techniques in MRI?
A) To enhance muscle signal
✔✔B) To reduce fat signal for better contrast
C) To improve spatial resolution
D) To prevent overheating of tissues
Which parameter controls the number of slices in an MRI scan?
A) TR
B) TE
✔✔C) Slice thickness
D) Flip angle
Which condition is an absolute contraindication for MRI?
✔✔A) Cochlear implants
B) Claustrophobia
3
, C) Pregnancy
D) Hypertension
Which type of magnet is most commonly used in modern MRI scanners?
A) Permanent magnet
B) Resistive magnet
✔✔C) Superconducting magnet
D) Electromagnet
What is the purpose of the RF pulse in MRI?
A) To produce images directly
✔✔B) To excite hydrogen protons
C) To create the magnetic field
D) To detect tissue density
What is the primary role of gadolinium contrast in MRI?
✔✔A) To enhance the visibility of blood vessels and tumors
B) To shorten scan times
4
