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 (B)</p> Signup and view all the answers

What is the advantage of the second generation CT scanner?

<p>Speed (B)</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 (C)</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 (D)</p> Signup and view all the answers

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

<p>Fifth generation (B)</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 (A)</p> Signup and view all the answers

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

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

Who first demonstrated the CT technique?

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

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

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

What is the name of the first CT scan machine?

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

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

<p>4th generation (C)</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 (D)</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 (C)</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 (B)</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 (D)</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 (A)</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' (B)</p> Signup and view all the answers

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

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

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

<p>Ultrafast imaging time (D)</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 (C)</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 (A)</p> Signup and view all the answers

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

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

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

<p>Narrow fan beam (A)</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 (D)</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 (D)</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 (B)</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 (C)</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 (A)</p> Signup and view all the answers

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

<p>Equipped with a detector ring (C)</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 (B)</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 (B)</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 (D)</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 (D)</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 (A)</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' (D)</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 (A)</p> Signup and view all the answers

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