CT IntroduCTion

49 Questions | Total Attempts: 288

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Computed Tomography Quizzes & Trivia

Questions and Answers
  • 1. 
    Which is the correct order of development?
    • A. 

      Head CT, Body CT, Spiral CT, Multislice CT

    • B. 

      Spiral CT, Body CT, Head CT, Multislice CT

    • C. 

      Multislice CT, Spiral CT, Head CT, Body CT

    • D. 

      They all were developed at the same time.

  • 2. 
    He developed basic mathematical equation which made computed tomography possible
    • A. 

      Radon

    • B. 

      Cormack

    • C. 

      Hounsfield

    • D. 

      Frank

  • 3. 
    Which of the following won the 1979 Nobel Prize for Physics for their work on computed tomography?
    • A. 

      Radon and Cormack

    • B. 

      Radon and Hounsfield

    • C. 

      Hounsfield and Cormack

    • D. 

      Johnson and Hounsfield

  • 4. 
    Which of the following are limitations of CT?
    • A. 

      Spatial resolution

    • B. 

      Relatively high patient dose

    • C. 

      Z axis reformation

    • D. 

      Distinct artifacts

    • E. 

      They all are limitations

  • 5. 
    The principle advantage of CT imaging over other x-ray imaging is:
    • A. 

      Faster throughput

    • B. 

      Improved contrast resolution

    • C. 

      Improved spatial resolution

    • D. 

      Decreased patient dose

  • 6. 
    Computed Tomography results in:
    • A. 

      Transverse Image

    • B. 

      Axial Image

    • C. 

      Transaxial Image

    • D. 

      All of the above

    • E. 

      Not all but more than one of the above

  • 7. 
    He originally applied reconstruction techniques in nuclear medicine ten years before he developed reconstruction techniques for computed tomography:
    • A. 

      Radon

    • B. 

      Hounsfield

    • C. 

      Roentgen

    • D. 

      Cormack

  • 8. 
    It may be described as a radiograph obtained with a moving source image receptor assembly:
    • A. 

      Computed Tomography

    • B. 

      Magnetic Resonance Imaging

    • C. 

      Positron Emission Imaging

    • D. 

      Conventional Tomography

  • 9. 
    Scatter radiation:
    • A. 

      Reduces radiographic contrast resolution

    • B. 

      Improve radiographic quality

    • C. 

      Improves resolution

    • D. 

      Reduces motions

  • 10. 
    The development of CT required the emergence and improvement in:
    • A. 

      Hounsfield units

    • B. 

      Size of the CT units

    • C. 

      Floor plan of the imaging suite

    • D. 

      Digital computer and special mathematics

  • 11. 
    He demonstrated the first CT Scanner in 1972 using special mathematical sequence:
    • A. 

      Cormack

    • B. 

      Hounsfield

    • C. 

      Radon

    • D. 

      Roentgen

  • 12. 
    Which are the following are advantages of CT over conventional radiography?
    • A. 

      Better contrast resolution

    • B. 

      Better spatial resolution

    • C. 

      Superimposition of tissue

    • D. 

      More scatter radiation

  • 13. 
    Computed Tomography results in:
    • A. 

      Analog Image

    • B. 

      Linear Image

    • C. 

      Digital Image

    • D. 

      Curvilinear Image

  • 14. 
    Which of the following terms does not fit?
    • A. 

      Section

    • B. 

      Slice

    • C. 

      Tomos

    • D. 

      Axial

    • E. 

      Unit

  • 15. 
    Computed tomography may be identified as:
    • A. 

      Emission tomography

    • B. 

      Transmission tomography

    • C. 

      Reflected tomography

    • D. 

      Temporal tomography

    • E. 

      Volumetrictomograph

  • 16. 
    A characteristic feature of a projection radiograph is:
    • A. 

      Poor spatial resolution

    • B. 

      Lengthy data acquisition

    • C. 

      Difficult quality control parameters

    • D. 

      Tissue superimposition

  • 17. 
    Which of the following finds application in bone mineral assay for evaluation of osteoporosis?
    • A. 

      Radioisotope emission tomography

    • B. 

      Conventional radiography

    • C. 

      CT

    • D. 

      Projection radiography

  • 18. 
    Which of the following imaging modalities appeared first?
    • A. 

      Emission imaging with radioisotopes

    • B. 

      Diagnostic ultrasound

    • C. 

      Projection radiography

    • D. 

      Electron beam CT

    • E. 

      Spiral CT

  • 19. 
    Which of the following is the characteristic of a first generation CT Scanner?
    • A. 

      Detector array

    • B. 

      Fan beam

    • C. 

      Pencil beam

    • D. 

      Slip ring technology

  • 20. 
    Which of the following CT imagers is often referred to as the heart scan?
    • A. 

      Second generation

    • B. 

      Third generation

    • C. 

      Fourth generation

    • D. 

      Electron beam

    • E. 

      Spiral

  • 21. 
    Which of the following is a particular characteristic of fourth generation CT Scanners?
    • A. 

      Fan x-ray beam geometry

    • B. 

      Multielement detector array

    • C. 

      Rotate-translate motion

    • D. 

      Fixed detector array

  • 22. 
    Which of the following CT Scanners has no mechanical moving parts in the gantry?
    • A. 

      Second generation

    • B. 

      Third generation

    • C. 

      Fourth generation

    • D. 

      Electron beam

    • E. 

      Spiral

  • 23. 
    Which of the following is a characteristic of a first generation CT Scanner?
    • A. 

      Detector array

    • B. 

      Fan beam

    • C. 

      Five minute imaging time

    • D. 

      Subsecond imaging time

  • 24. 
    Which of the following features led to the development of the spiral CT Scanner?
    • A. 

      Megaheat unit x-ray tubes

    • B. 

      Molybdenum/rhodium targeted x-ray tubes

    • C. 

      Electronic slip ring

    • D. 

      High frequency generatiors

  • 25. 
    Ring artifacts are characteristic of:
    • A. 

      First generation

    • B. 

      Second generation

    • C. 

      Third generation

    • D. 

      Fourth generation