Computed Tomography: Definition and History Quiz
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Questions and Answers

Which generation of computed tomography uses a pencil beam and one detector?

  • First generation (correct)
  • Fifth generation
  • Second generation
  • Third generation

    • What is the characteristic feature of the second generation CT scanner?

  • Rotate/rotate
  • Rotate/translate
  • Translate/translate
  • Translate/rotate (correct)

    • In which generation of CT scanner does the X-ray beam shape consist of a wide fan beam?

  • Second generation
  • First generation
  • Fifth generation
  • Third generation (correct)

    • What is the imaging time for the first generation reconstruction?

    <p>5 minutes</p> Signup and view all the answers

    What is the advantage of the second generation CT scanner?

    <p>Speed</p> Signup and view all the answers

    What does the bow-tie filter in the first generation CT scanner compensate for?

    <p>Radiation intensity at the edges of the beam</p> Signup and view all the answers

    In which generation is the x-ray tube rotation mechanical and there are no moving parts?

    <p>Fifth generation</p> Signup and view all the answers

    Which CT scanner uses an electron beam and has no moving parts?

    <p>Fifth generation</p> Signup and view all the answers

    Which generation of CT scanner consists of multiple detectors and has increased scattered radiation as a disadvantage?

    <p>Second generation</p> Signup and view all the answers

    What is the characteristic feature of the third generation CT scanner?

    <p>Rotate/rotate</p> Signup and view all the answers

    Who first demonstrated the CT technique?

    <p>Godfrey Newboid Hounsfield</p> Signup and view all the answers

    What is the Greek word 'Tomos' means in the context of computed tomography?

    <p>Slice/section</p> Signup and view all the answers

    What is the name of the first CT scan machine?

    <p>EMI Scanner</p> Signup and view all the answers

    Which generation of CT scanner is equipped with a detector ring?

    <p>4th generation</p> Signup and view all the answers

    In the context of CT, what does the term 'Algorithm' refer to?

    <p>Computer-adapted mathematical calculation applied to raw data during image reconstruction</p> Signup and view all the answers

    What is the primary principle of operation for conventional/axial tomography?

    <p>Plane of the image is parallel to the long axis of the body</p> Signup and view all the answers

    What does a 'Binary Digit' or 'Bit' represent in terms of CT?

    <p>Can code for 2 values or 2 shades of gray which correspond to white and black</p> Signup and view all the answers

    Which term refers to the movement of source-detector assembly across the patient in CT?

    <p>Translation/sweep</p> Signup and view all the answers

    'Plane of image is perpendicular to the long axis of the body' describes which type of CT image?

    <p>Computed Tomography CT Image</p> Signup and view all the answers

    'Kilobytes, megabytes, gigabyte or terabytes' are related to storage requirements in which context of CT?

    <p>'Storage Requirement'</p> Signup and view all the answers

    What is the primary characteristic feature of the first generation CT scanner?

    <p>Translate/rotate (Bushong)</p> Signup and view all the answers

    In which generation of CT scanner does the X-ray tube rotation involve mechanical rotation without any moving parts?

    <p>Fifth generation</p> Signup and view all the answers

    What is the imaging time for the third generation CT scanner?

    <p>Ultrafast imaging time</p> Signup and view all the answers

    Which generation of computed tomography uses a binary digit or bit to represent the imaging information?

    <p>First generation</p> Signup and view all the answers

    What is the purpose of a bow-tie filter in the first generation CT scanner?

    <p>Equalize the radiation intensity reaching the detector array</p> Signup and view all the answers

    In which context of CT does the term 'Algorithm' refer to?

    <p>Reconstruction process</p> Signup and view all the answers

    Which characteristic feature is specific to the second generation CT scanner?

    <p>Narrow fan beam</p> Signup and view all the answers

    'Plane of image is perpendicular to the long axis of the body' describes which type of CT image?

    <p><strong><em>Axial</em></strong> image</p> Signup and view all the answers

    'Kilobytes, megabytes, gigabyte, or terabytes' are related to data storage requirements in which context of CT?

    <p>Data management</p> Signup and view all the answers

    What does a 'Binary Digit' or 'Bit' represent in terms of CT?

    <p>Presence or absence of an object in a location</p> Signup and view all the answers

    What does the term 'Digital Axial Tomography (DAT)' refer to in the context of computed tomography?

    <p>A type of CT scanner with multiple detectors and increased scattered radiation</p> Signup and view all the answers

    What is the significance of the term 'Body Section Roentgenography' in the context of computed tomography?

    <p>It describes the type of CT image where the plane is parallel to the long axis of the body</p> Signup and view all the answers

    What is the characteristic feature of the fourth generation CT scanner?

    <p>Equipped with a detector ring</p> Signup and view all the answers

    In terms of CT, what does the term 'Algorithm' refer to?

    <p>Computer-adapted mathematical calculation applied to raw data during image reconstruction</p> Signup and view all the answers

    Which generation of CT scanner has the x-ray tube rotation mechanical and no moving parts?

    <p>5th generation</p> Signup and view all the answers

    What is the primary principle of operation for conventional/axial tomography?

    <p>Plane of the image is parallel to the long axis of the body</p> Signup and view all the answers

    'Kilobytes, megabytes, gigabyte or terabytes' are related to storage requirements in which context of CT?

    <p>Third generation CT scanner</p> Signup and view all the answers

    'Binary Digit/BIT' can code for how many values or shades of gray which correspond to white and black in terms of CT?

    <p>$16$ values or $16$ shades of gray</p> Signup and view all the answers

    'Creation of a cross-sectional tomographic section of the body with a rotating fan beam, a detector array and computed reconstruction' describes which type of CT image?

    <p>'A transaxial/transverse image'</p> Signup and view all the answers

    'Conventional/axial tomography' refers to which plane of the image in relation to the long axis of the body?

    <p>Parallel to</p> Signup and view all the answers

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