Computed Tomography (CT) Imaging
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Questions and Answers

What is another name for computed tomography?

  • X-ray imaging
  • Radiography
  • Geometric tomography
  • Computerized axial tomography (correct)

How does computed tomography produce images of the body?

  • By creating 3D models
  • By using ultrasound waves
  • By detecting electrical impulses
  • By producing cross-sectional images (correct)

Why is radiography limited in distinguishing certain structures?

  • Because it superimposes all structures on the film (correct)
  • Due to its quantitative nature
  • Because of the use of ultrasound waves
  • Due to the inability to produce cross-sectional images

What is a major advantage of conventional tomography over radiography?

<p>It overcomes the problem of superimposition (D)</p> Signup and view all the answers

In what way is radiography described as a qualitative process?

<p>It is difficult to distinguish nonuniform thickness (B)</p> Signup and view all the answers

Why is computed tomography often preferred for imaging tumors and surrounding tissues?

<p>Because it can produce cross-sectional images (A)</p> Signup and view all the answers

What is the immediate goal of tomography?

<p>To eliminate all unwanted planes (A)</p> Signup and view all the answers

Why do radiography and tomography fail to adequately demonstrate slight differences in subject contrast?

<p>Because of the film-screen combinations used (A)</p> Signup and view all the answers

What is a limitation of radiography and tomography with regards to image adjustment?

<p>Contrast cannot be adjusted after being recorded on film (A)</p> Signup and view all the answers

Why do radiography and tomography have limitations in imaging very small tissue contrast differences?

<p>Film sensitivity to slight tissue contrast variations (D)</p> Signup and view all the answers

How do digital imaging modalities like CT differ from radiography and tomography in adjusting image contrast?

<p>CT scans can alter contrast post-image capture (C)</p> Signup and view all the answers

Apart from medicine, in which other field is CT commonly used according to the text?

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

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