Certified Solutions
Which MRI technique is commonly used for detecting tumors?
A) Fat suppression
B) Gradient echo
✔✔C) T2-weighted imaging
D) Diffusion tensor imaging
What is the purpose of echo time (TE) in MRI?
A) Controls slice thickness
B) Adjusts scan duration
✔✔C) Determines contrast in T2 images
D) Reduces artifacts
Which MRI sequence is best for spinal cord imaging?
✔✔A) T2-weighted imaging
B) Gradient echo
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,C) Echo-planar imaging
D) Proton density
Which artifact is commonly seen near metal implants in MRI?
A) Motion artifact
B) Gibbs artifact
✔✔C) Susceptibility artifact
D) Chemical shift artifact
Which MRI sequence is used in functional MRI (fMRI)?
✔✔A) Blood oxygen level-dependent (BOLD) imaging
B) T1-weighted imaging
C) Fat-suppressed imaging
D) Proton density
Which of the following improves signal-to-noise ratio in MRI?
✔✔A) Higher magnetic field strength
B) Increasing TR
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, C) Decreasing echo time
D) Using shorter scan times
What is the purpose of the coil in MRI?
✔✔A) Detects returning radiofrequency signals
B) Reduces patient movement
C) Controls magnetic field strength
D) Increases scan time efficiency
Which of the following is the primary safety concern in MRI?
A) Radiation exposure
B) Loud noise levels
✔✔C) Magnetic field interactions
D) Low contrast resolution
What is the function of RF pulses in MRI?
A) Generate the main magnetic field
✔✔B) Excite hydrogen protons
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