CT Review Essentials

  1. Which of the following scientists were instrumental in the initial development of CT.
    1. Alan Cormack
    2. Raymond Damadian
    3. Geodfrey Hounsfield
    4. Paul Lauterbur





    C. Only 1 and 3 are correct
  2. Computed tomograpy (CT) results in a/an




    A. digital image
  3. The principal advantage of CT over projection radiography is




    E. contrast resolution
  4. Which of the following terms does not fit?




    E. volume
  5. Computed tomography is otherwise identified as




    B. transmission tomography
  6. When compared to projection radiography, conventional tomography shows




    C. improved contrast resolution
  7. Which of the following involves emission of a signal from a patient?




    B. magnetic resonance imaging
  8. The data acquisition in CT results in a/an




    B. transverse image
  9. Which of the following scientists received the Nobel Prize for their work leading to CT?
    1. Alan Cormack
    2. Raymond Damadian
    3. Geodfrey Hounsfield
    4. Paul Lauterbur





    B. Only 1 and 3 are correct
  10. Which of the following are characteristic limitation of CT?
    1. spatial resolution
    2. artifact generation
    3. z-axis resolution
    4. patient dose





    D. all are correct
  11. A characteristic feature of a projection radiograph is




    B. tissue superimposition
  12. which of the following finds application in bone mineral assay for evaluation of osteoporosis?




    B. CT
  13. Which of the following involves emission of a signal from a patient?




    C. radioisotope imaging
  14. Compared to projection radiography, conventional tomography results in improved contrast resolution because




    A. out of plane tissue are blurred
  15. Computed tomography results in improved contrast resolution because




    B. precise beam collimation is employed
  16. The mathematics of back projection applied to image reconstruction in CT is credited to




    B. Alan Cormack
  17. Place the following in chronological order.
    1. CT
    2. electron beam CT (EBCT)
    3. multisection computed tomography
    4. spiral CT





    A. 1, 2, 4, 3
  18. The term "projection," when applied to CT, refers to




    B. a data set representing x-ray attenuation in the patient
  19. Compared to projection radiography, conventional tomography will improve
    1. contrast resolution
    2. patient dose
    3. superimposition of tissues
    4. spatial resolution
    b. patient dose
  20. Which of the following image modalities are likely to have less scatter radiation affecting the image?




    E. CT
  21. What is the principal cause of reduced contrast in projection radiography?




    A. scatter radiation
  22. The first CT image was demonstrated by




    A. Geodfrey Hounsfield
  23. The Principal advantage of CT over conventional tomography is




    c. fewer artifacts
    D. improved contrast resolution
  24. Which of the following imaging modalities appeared first?




    B. projection radiography
  25. Image presentation in conventional tomography is




    A. axial
  26. When compared to projection radiography, conventional tomography shows




    C. less tissue superimposition
  27. Compared to CT, film/screen radiography will give
    1. better spatial resolution
    2. lower entrance surface dose for a single image
    3. lower tube heating for a single image
    4. better low contrast resolution





    D. Only 1, 2, and 3 are correct
  28. Which of the following is a characteristic of a first-generation CT Imager?




    A. pencil beam
  29. Which of the following CT imagers is often referred to as the heart scan?




    B. spiral
  30. Which of the following is a particular characteristic of fourth-generation CT imagers?




    E. fixed detector array
  31. Which of the following CT imagers has no mechanical moving parts in the gantry?




    B. electron beam
  32. Which of the following is characteristic of a first-generation CT imager?




    D. five minute imaging time
  33. 6. Which of the following features led to the development of the spiral CT imager?




    C. electronic slip rings
  34. Ring artifacts are characteristic of




    C. third-generation CT
  35. Which of the following is characteristic of a second-generation CT imager?




    A. translate-rotate motion
  36. The principal advantage to electron beam CT (EBCT) is




    A. subsecond imaging time
  37. During spiral CT, the motion of the patient couch is




    A. continuously advanced
  38. Which of the following is characteristic of a second-generation CT imager?




    D. thirty second imaging time
  39. Which of following the are characteristic of a first-generation CT imager?
    1. pencil beam
    2. single detector
    3. translate-rotate motion
    4. no body imaging





    D. all are correct
  40. Current design of electron CT (EBCT) allows for simultaneous production of




    D. four slices
  41. Which of the following is characteristic of a second-generation CT imager?
    1. fan-shaped x-ray beam
    2. detector array
    3. translate-rotate motion
    4. capable of imaging head and body





    C. All are correct
  42. X-radiation produced by an electron beam CT (EBCT) imager is emitted from a/an




    A. fixed tungsten semicircular ring
Author
nfhoover
ID
69744
Card Set
CT Review Essentials
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CT Review
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