MRI 2

29 Questions

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MRI Quizzes & Trivia

Questions and Answers
  • 1. 
    At a field strength of 1.0 tesla, the approximate T2 relaxation time for grey matter is what?
    • A. 

      100MS

    • B. 

      80MS

    • C. 

      90MS

  • 2. 
    In a T2 weighted image, CSF has a ________ T2 relaxation time and therefore appears _______.
    • A. 

      Long, Bright

    • B. 

      Long, Dark

    • C. 

      Short, Dark

    • D. 

      Short, Bright

  • 3. 
    At a field strength of 1.0 tesla, the approximate T2 relaxation time for renal cortex tissue is what?
    • A. 

      45MS

    • B. 

      50MS

    • C. 

      60MS

    • D. 

      70MS

  • 4. 
    At a field strength of 1.0 tesla, the approximate T2 relaxation time for spleen tissue is what?
    • A. 

      60MS

    • B. 

      80MS

    • C. 

      90MS

    • D. 

      100MS

  • 5. 
    When the phase encoding gradient is activated, steep slopes produce what type of signal amplitude?
    • A. 

      LOW

    • B. 

      HIGH

    • C. 

      MEDIUM

    • D. 

      STRONG

  • 6. 
    A 180 degree RF pulse is used to ______ the dephasing net vector in the transverse plane.
    • A. 

      MAGNETIZE

    • B. 

      REFOCUS

    • C. 

      DECAY

    • D. 

      DELAY

  • 7. 
    At a field strength of 1.0 tesla, the approximate T1 relaxation time for CSF is what?
    • A. 

      800MS

    • B. 

      1000MS

    • C. 

      2000MS

    • D. 

      2500MS

  • 8. 
    At a field strength of 1.0 tesla, the approximate T2 relaxation time of fat is what?
    • A. 

      40

    • B. 

      50

    • C. 

      80

    • D. 

      90

  • 9. 
    During the acquisition of axial images of the body with the phase direction A/P, frequency encoding is performed by which physical gradient?
    • A. 

      X

    • B. 

      Y

    • C. 

      Z

  • 10. 
    At a field strength of 1.0 tesla, the approximate T1 relaxation time for muscle tissue is what?
    • A. 

      270

    • B. 

      480

    • C. 

      600

    • D. 

      680

  • 11. 
    In a T1 weighted image, a short TR is used to do what?
    • A. 

      MAX T2

    • B. 

      MIN T2

    • C. 

      MAX T1

    • D. 

      MIN T2

  • 12. 
    At a field strength of 1.0 tesla, the approximate T2 relaxation time for renal medulla tissue is what?
    • A. 

      90

    • B. 

      100

    • C. 

      140

    • D. 

      300

  • 13. 
    During the acquisition of axial images of the body with the frequency direction L/R, phase encoding is performed by which physical gradient?
    • A. 

      X

    • B. 

      Y

    • C. 

      Z

  • 14. 
    In a T2 weighted image, tissues with long T2 relaxation times appear ______.
    • A. 

      HYPERINTENSE

    • B. 

      HYPOINTENSE

    • C. 

      ISOINTENSE

  • 15. 
    • A. 

      X

    • B. 

      Y

    • C. 

      Z

  • 16. 
    The range of frequencies that is sampled during frequency encoding is known as what?
    • A. 

      RECIEVE BANDWITH

    • B. 

      TRANSMIT BANDWITH

    • C. 

      GRADIENT SLOPE

    • D. 

      RF SLOPE

  • 17. 
    The Y gradient alters the magnetic field strength along which axis?
    • A. 

      HORIZONTAL

    • B. 

      VERTICAL

    • C. 

      LONG

    • D. 

      SHORT

  • 18. 
    During slice selection, the Y gradient is used to select slices in which plane?
    • A. 

      CORONAL

    • B. 

      AXIAL

    • C. 

      SAGITTAL

  • 19. 
    At a field strength of 1.0 tesla, the approximate T1 relaxation time for spleen tissue is what?
    • A. 

      360

    • B. 

      380

    • C. 

      400

    • D. 

      480

  • 20. 
    At a field strength of 1.0 Tesla, the approximate T1 relaxation time for blood is what?
    • A. 

      540

    • B. 

      680

    • C. 

      800

    • D. 

      1000

  • 21. 
    The image parameter that primarily affects T1 weighting is known as what
    • A. 

      TE

    • B. 

      TR

    • C. 

      IR

  • 22. 
    At a field strength of 1.0 tesla, the approximate T1 relaxation time for renal medulla tissue is what?
    • A. 

      520

    • B. 

      600

    • C. 

      680

    • D. 

      800

  • 23. 
    At a field strength of 1.0 tesla, the approximate T1 relaxation time for renal cortex tissue is what?
    • A. 

      80

    • B. 

      270

    • C. 

      360

    • D. 

      390

  • 24. 
    The X gradient alters the magnetic field strength along which axis
    • A. 

      HORIZONTIAL

    • B. 

      VERTICAL

    • C. 

      LONG

    • D. 

      SHORT

  • 25. 
    The time between the 90 degree RF pulse and the spin echo signal in a spin echo pulse sequence is known as what?
    • A. 

      TR

    • B. 

      TE

    • C. 

      INVERSION TIME

    • D. 

      RELAXATION TIME

  • 26. 
    In a 1.0 tesla magnet, the difference in the precessional frequency between fat and water is what?
    • A. 

      130

    • B. 

      147

    • C. 

      200

    • D. 

      220

  • 27. 
    During the acquisition of axial images of the brain with the frequency direction A/P, phase encoding is performed by which physical gradient?
    • A. 

      X

    • B. 

      Y

    • C. 

      Z

  • 28. 
    The signal created after applying a 90 degree RF pulse is known as what?
    • A. 

      FID

    • B. 

      GRADIENT ECHO SIGNAL

    • C. 

      SPIN ECHO SIGNAL

    • D. 

      SPIN SPIN SIGNAL

  • 29. 
    The image parameter that primarily affects T2 weighting is known as what?
    • A. 

      TR

    • B. 

      TE

    • C. 

      INVERSION TIME