Dual-Energy CT Imaging
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Questions and Answers

What is the main advantage of dual-energy CT over conventional CT?

  • Enhanced ability to differentiate between fat, soft tissue, bone, and contrast material (correct)
  • Improved visualization of lung abnormalities
  • Higher spatial resolution
  • Ability to acquire images at two different energies

    • How does dual-energy CT enable differentiation between materials such as calcifications and iodine?

  • By measuring their molecular weights
  • Through their unique energy-dependent attenuation profiles (correct)
  • By analyzing their spatial distribution in the body
  • Based on their color intensity in the images

    • What functional parameter can be assessed using dual-energy CT besides anatomical structures?

  • Metabolic rate
  • Iodine concentration (correct)
  • Tissue elasticity
  • Vascular permeability

    • How can structures be delineated based on their attenuation differences in dual-energy CT?

    <p>By assessing attenuation differences at different photon energy levels</p> Signup and view all the answers

    What factor determines how much a material will attenuate the X-ray beam in dual-energy CT?

    <p>Tissue composition and photon energy level</p> Signup and view all the answers

    Why is it possible to manipulate tissue attenuation in dual-energy CT?

    <p>By adjusting photon energy levels</p> Signup and view all the answers

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