CT Imaging Formation and Quality Quiz
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Questions and Answers

What is the single most important factor in obtaining good quality diagnostic images in CT?

  • The production of x-rays
  • The role of the computer for image reconstruction
  • The mechanics of the tube motion and table travel
  • The skill of the Radiologist (correct)

When does image formation in CT begin?

  • After the raw digital data has been converted to a numeric map
  • During the mechanics of the tube motion and table travel
  • Once x-rays have been produced and directed towards the patient on the table (correct)
  • At the role of the computer for image reconstruction

What does image formation in CT refer to?

  • The mechanics of the tube motion and table travel
  • Conversion of information from the scan into raw digital data (correct)
  • The role of the computer for image reconstruction
  • The production of x-rays

What is involved in the total CT imaging process?

<p>The production of x-rays, the mechanics of the tube motion and table travel, and the role of the computer for image reconstruction (D)</p> Signup and view all the answers

What are the steps of CT image formation?

<p>Multiple projections are taken at 90 (C)</p> Signup and view all the answers

What is the purpose of pre-patient collimation in CT imaging?

<p>To decrease radiation dose to the patient (D)</p> Signup and view all the answers

What is the function of the detector array in a CT scanner?

<p>To convert collected data into visible images (A)</p> Signup and view all the answers

Which generation of CT scanners uses pencil beam with 2 detectors and is called Translate-Rotate Scanners?

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

What is the main reason for using a large rotating anode in a CT scanner?

<p>To minimize heat damage from the X-ray beam (A)</p> Signup and view all the answers

What is the purpose of motorizing the patient support couch in a CT scanner?

<p>To allow movement (C)</p> Signup and view all the answers

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