Computed Tomography Scan: Principles, Concepts, and Historical Development
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Questions and Answers

What is the main function of a CT scanner during the data acquisition process?

  • Collect the data (correct)
  • Convert data into shades of gray
  • Eliminate superimposition
  • Prepare data for display
  • Which historical development in CT technology occurred in 2005?

  • Introduction of 640-slice CT
  • Introduction of 64-slice helical CT
  • Introduction of 320-slice helical CT (correct)
  • Introduction of 8- and 16-slice scanners
  • What is a major disadvantage associated with CT scans?

  • Improved contrast resolution
  • Eliminates superimposition
  • Superior quality image
  • High patient dose (correct)
  • Which term refers to the process of using the collected information to prepare it for display in CT imaging?

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

    What is a potential drawback of CT scans related to patient experience?

    <p>Possible allergic reaction</p> Signup and view all the answers

    Which feature was specific to the Toshiba 640-slice CT scanner?

    <p>320 detector rows</p> Signup and view all the answers

    What type of imaging technique uses a rotating fan beam and detector array to create cross-sectional tomographic sections of the body?

    <p>Computed reconstruction tomography</p> Signup and view all the answers

    What is the main advantage of computed tomography (CT) related to image quality?

    <p>Improved image quality</p> Signup and view all the answers

    Which term is NOT used as an alternative name for Computed Tomography?

    <p>Ultrasonic cross-sectional imaging</p> Signup and view all the answers

    What is the advantage of CT in imaging large vessels compared to other techniques?

    <p>Superior image quality</p> Signup and view all the answers

    What is a common disadvantage associated with CT scans related to patient experience?

    <p>Possible allergic reactions</p> Signup and view all the answers

    During which process does CT convert the process data into shades of gray for viewing?

    <p>Image display</p> Signup and view all the answers

    What was the significant advancement in CT technology that occurred around 2012?

    <p>Introduction of the Toshiba 640-slice scanner</p> Signup and view all the answers

    Who is credited with demonstrating the CT technique first?

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

    Which inventor is known as the Father of body section imaging?

    <p>André Bocage</p> Signup and view all the answers

    Who proposed a method to represent a single slice of the body on radiographic film?

    <p>Allesandro Vallebona</p> Signup and view all the answers

    In which year did William David Coolidge invent the hot cathode x-ray tube?

    <p>1913</p> Signup and view all the answers

    Which scientist demonstrated mathematically the basis for CT image construction?

    <p>Johann Radon</p> Signup and view all the answers

    Who published a theoretical analysis and experimental scanner results using a computer for image reconstruction?

    <p>Allan Cormack</p> Signup and view all the answers

    Who were the two individuals who shared the Nobel Prize in Physics in 1979 for their work on the CT technique?

    <p>Allan Mcleod Cormack and Godfrey Hounsfield</p> Signup and view all the answers

    What major development occurred in CT scanners in 1980?

    <p>Reduction of scan time to 1 to 3 seconds</p> Signup and view all the answers

    Which company manufactured the first spiral (helical) CT scanner that entered the market in 1989?

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

    When was the prototype of the EMI CT1010 body scanner installed at Atkinson Morley's Hospital?

    <p>1976</p> Signup and view all the answers

    How many companies offered 3rd generation CT scanners in 1976?

    <p>17</p> Signup and view all the answers

    Who designed ACTA, a whole-body CT scanner later marketed by Pfizer?

    <p>Robert Ledley</p> Signup and view all the answers

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