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MRI Registry Review Questions and Answers Latest Version Already Passed
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MRI Registry Review Questions and Answers Latest Version Already Passed Which parameter primarily affects image contrast in a T1-weighted MRI sequence? A) Echo time (TE) B) Repetition time (TR) C) Bandwidth D) Gradient strength What is the purpose of fat suppression techniques in MRI? A...

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  • March 11, 2025
  • 118
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • mri registry review questions and answers latest v

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  • MRI Registry
  • MRI Registry

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MRI Registry Review Questions and
Answers Latest Version Already Passed
Which parameter primarily affects image contrast in a T1-weighted MRI sequence?

A) Echo time (TE)


✔✔B) Repetition time (TR)


C) Bandwidth

D) Gradient strength




What is the purpose of fat suppression techniques in MRI?

A) Increase scan speed


✔✔B) Reduce signal from fat to enhance lesion detection


C) Improve signal-to-noise ratio

D) Minimize patient discomfort




Which MRI artifact is caused by abrupt changes in magnetic susceptibility?

A) Motion artifact

B) Aliasing artifact


✔✔C) Susceptibility artifact

1

,D) Gibbs artifact




Which MRI sequence is most useful for detecting early ischemic stroke?

A) T1-weighted


✔✔B) Diffusion-weighted imaging (DWI)


C) STIR

D) Gradient echo




What is the primary advantage of using a 3T MRI scanner over a 1.5T scanner?

A) Reduced cost


✔✔B) Higher signal-to-noise ratio and better resolution


C) Shorter scan times for all sequences

D) No need for contrast agents




Which factor primarily influences T2 relaxation time?

A) Repetition time

B) Magnetic field strength


✔✔C) Spin-spin interactions


2

,D) RF pulse duration




Which MRI sequence is best for detecting fluid collections in soft tissues?

A) T1-weighted imaging

B) Proton density imaging


✔✔C) T2-weighted imaging


D) Gradient echo




Which of the following is a common symptom of an MRI contrast reaction?

A) Increased radiation exposure


✔✔B) Mild nausea and headache


C) Decreased body temperature

D) Enhanced bone signal




Which gradient coil is responsible for slice selection in axial imaging?

A) X-gradient

B) Y-gradient


✔✔C) Z-gradient


3

, D) RF coil




What is the primary safety concern with metallic implants in MRI?

A) Decreased image quality


✔✔B) Heating and movement of the implant


C) Longer scan times

D) Increased contrast enhancement




Which MRI technique provides functional information about brain activity?

A) T1-FLAIR


✔✔B) Functional MRI (fMRI)


C) Diffusion-weighted imaging

D) Proton density imaging




What is the primary purpose of the inversion pulse in an inversion recovery sequence?


✔✔A) Nullify specific tissue signals


B) Increase T2 contrast

C) Reduce scan time


4

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