Clinical Study Protocols and Image Detail Visibility

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Questions and Answers

What is one approach to reducing noise in CT imaging?

  • Using large voxels or a smoothing filter (correct)
  • Increasing the number of projections
  • Decreasing radiation dose
  • Using small voxels and edge-enhancing filters

What is the primary goal of any CT system?

  • To accurately reproduce internal structures as two-dimensional images (correct)
  • To filter the x-ray beam
  • To display images in three dimensions
  • To overcome superimposition of structures and demonstrate slight differences in tissue contrast

What role does heavy filtration of the x-ray beam play in CT image formation?

  • It is not directly related to CT image formation (correct)
  • It increases noise
  • It improves tissue contrast
  • It reduces superimposition of structures

Which of the following is true about voxels in CT imaging?

<p>Small voxels absorb fewer photons and result in increased noise (C)</p> Signup and view all the answers

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