CT CrossTrainer Post Test! Hardest Trivia Quiz

205 Questions | Total Attempts: 892

SettingsSettingsSettings
Please wait...
CT CrossTrainer Post Test! Hardest Trivia Quiz

The CT CrossTrainer is a multiple choice post-test which includes questions related to fundamental physical concepts, jargons, and clinical imaging policy of Computed Tomography. This CT CrossTrainer quiz has been created to test and develop practical knowledge in clinical CT imaging. All questions are mandatory. Take your time and feel the pressure of the real exam. Let's take this challenging quiz. All the best!


Questions and Answers
  • 1. 
    Which of the following men was awarded the first Nobel Prize in Physics in 1901?
    • A. 

      A. Geoffrey Newton

    • B. 

      B. Godfrey Newbold Hounsfield

    • C. 

      C. Wilhelm Conrad Rontgen

    • D. 

      D. Albert von Kolliker

  • 2. 
    Which of the following was a reason to develop tomographic imaging techniques? 1. conventional radiographs superimposed anatomy. 2. conventional radiographs are limited in their ability to show the difference between tissues with similar densities. 3. physicians wanted to be able to see inside a patient in a manner similar to surgical exploration.
    • A. 

      A. 1&2

    • B. 

      B. 1&3

    • C. 

      C. 2&3

    • D. 

      D. 1,2&3

  • 3. 
    Which of the following is a characteristic of the tomographic systems which existed before the first CT scanners?
    • A. 

      A. film was used

    • B. 

      B. a computer used to reconstruct the images

    • C. 

      C. a detector array was used

    • D. 

      D. it was used only for extremity imaging

  • 4. 
    Conventional tomography was Not clinically useful because: 1. the images were often blurry 2. it took too long to make an image 3. the images lacked detail
    • A. 

      A. 1&2

    • B. 

      B. 1,2&3

    • C. 

      C. 1&3

    • D. 

      D. 2&3

  • 5. 
    CT is commonly referred to as all of the following names EXCEPT:
    • A. 

      A. digital subtraction angiography

    • B. 

      B. computed tomography

    • C. 

      C. CAT-scan

    • D. 

      D. computerized axial tomography

  • 6. 
    The detectors:
    • A. 

      A. shield the patient from the x-rays

    • B. 

      B. produce the beam of x-rays

    • C. 

      C. increase the x-ray exposure of the film

    • D. 

      D. measure the x-rays that pass through the patient's body

  • 7. 
    Detectors were incorporated into CT scanner designs to replace film because detectors: 1. are more sensitive than film. 2. converted the x-ray attenuation information into an electrical signal which could be used by a computer. 3. are safer than film.
    • A. 

      A. 1&2

    • B. 

      B. 2 only

    • C. 

      C. 3 only

    • D. 

      D. 1 only

  • 8. 
    The first commercial CT scanner was available during the:
    • A. 

      A. 1990's

    • B. 

      B. 1980's

    • C. 

      C. 1960's

    • D. 

      D. 1970's

  • 9. 
    A first-generation scanner:
    • A. 

      A. used a curved array of detectors

    • B. 

      B. produced an image in less than 5 seconds

    • C. 

      C. used multiple detectors

    • D. 

      D. used a pencil beam of x-rays

  • 10. 
    • A. 

      A. is stationary in all scanner designs commercially avaiable today

    • B. 

      B. was first seen on third-generation CT scanners

    • C. 

      C. rotates around the patient in all scanner designs

    • D. 

      D. allows for much faster data collection than using single detector

  • 11. 
    Fourth-generation CT scanner_______________while second-generation CT scanner do not.
    • A. 

      A. use multiple detectors

    • B. 

      B. have a detector ring which does not rotate

    • C. 

      C. have a rotating ring of detectors

    • D. 

      D. apply fan beam geometry

  • 12. 
    Fourth-generation CT scanner_______________while third-generation CT scanners do not.
    • A. 

      A. have the capability of advanced scanning techniques

    • B. 

      B. apply fan beam geometry

    • C. 

      C. have detectors which rotate

    • D. 

      D. have a detector ring which does not rotate

  • 13. 
    The slip ring on a CT scanner: 1.  prevents the high voltage cable from winding up. 2.  advances the patient table. 3. alleviates the need for reversal of the rotating assembly to which the tube is attached.
    • A. 

      A. 2&3

    • B. 

      B. 3 only

    • C. 

      C. 1&3

    • D. 

      D. 2 only

  • 14. 
    The stationary metal contacts through which electrical signal are transferred to and from the rotating slip ring are known as the:
    • A. 

      A. electrical brushes

    • B. 

      B. CT x-ray tube

    • C. 

      C. power supply

    • D. 

      D. detectors

  • 15. 
    In CT, a thick x-ray beam that not only spreads to the sides of the patient table but also diverges along the length of the patient table is called a __________beam.
    • A. 

      A. fan

    • B. 

      B. cone

    • C. 

      C. spherical

    • D. 

      D. pencil

  • 16. 
    MDCT scanners: 1. can produce images from more than one anatomical location at a time. 2. were first attempted by EMI in the 1970's. 3. have shorter exam times than single-slice CT scanners.
    • A. 

      A. 1&3

    • B. 

      B. 1,2&3

    • C. 

      C. 1&2

    • D. 

      D. 2&3

  • 17. 
    Which of the following CT scanner designs does NOT use an x-ray tube?
    • A. 

      A. PET/CT

    • B. 

      B. electron beam CT

    • C. 

      C. MDCT

    • D. 

      D. first-generation CT

  • 18. 
    The following can be obtained with PET/CT: 1. images with metabolic information. 2. images with high-resolution anatomical information. 3.attenuation correction.
    • A. 

      A. 1,2&3

    • B. 

      B. 1&3

    • C. 

      C. 2&3

    • D. 

      D. 1&2

  • 19. 
    If CT images are reconstructed so that they are aligned perpendicular to the axis which travels from left to right in the patient, they are in__________orientation.
    • A. 

      A. a coronal

    • B. 

      B. a transverse

    • C. 

      C. an oblique

    • D. 

      D. a sagittal

  • 20. 
    Which of the following cross-sectional orientations of an abdomen can be directly scanned in CT? 1. sagittal. 2. coronal. 3. transverse.
    • A. 

      A. 1&3

    • B. 

      B. 1 only

    • C. 

      C. 2 only

    • D. 

      D. 3 only

  • 21. 
    In the CT department the term "axial" is frequently used to reference which of the following orientations?
    • A. 

      A. sagittal

    • B. 

      B. transverse

    • C. 

      C. oblique images

    • D. 

      D. coronal

  • 22. 
    Which of the following is a characteristic of CT but NOT of conventional radiography?
    • A. 

      A. cross-sectional slices

    • B. 

      B. no ionizing radiation is used

    • C. 

      C. magnetization and radio waves are used

    • D. 

      D. differentiation of tissues dependent upon x-ray attenuation

  • 23. 
    Arrange MR imaging, CT imaging and plain film x-ray imaging in order from best to worst in their ability to differentiate soft tissues in the body:
    • A. 

      A. x-ray is better that CT is better than MRI

    • B. 

      B. MRI is better than CT is better than x-ray

    • C. 

      C. CT is better than MRI is better than x-ray

    • D. 

      D. x-ray is better than MRI is better than CT

  • 24. 
    Things which are digital: 1. are less accurate than their analog counter parts. 2. can be electronically transported to remote locations. 3. are easily stored on a computer.
    • A. 

      A. 2 only

    • B. 

      B. 1&2

    • C. 

      C. 2&3

    • D. 

      D. 1 only

  • 25. 
    Which of the following is NOT a characteristic of ionizing radiation?
    • A. 

      A. sufficient energy to cause ionization of living tissues

    • B. 

      B. repeated exposure has been linked to the development of malignancies

    • C. 

      C. must be limited to below the safe level set by the FDA

    • D. 

      D. must be limited to levels as low as possible given the clinical goals