Radiological Requirements for Mammography
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Questions and Answers

In a typical mammographic screening examination, how many views of each breast are commonly taken?

  • Two views (correct)
  • Four views
  • Three views
  • One view
  • What is the primary purpose of a mammography?

  • Detecting early-stage breast cancer (correct)
  • Detecting lung cancer
  • Monitoring bone density
  • Checking for heart disease
  • Apart from breast cancer detection, what is another use of mammography?

  • Monitoring kidney function
  • Detecting lung diseases
  • Pre-surgical localization and guidance of biopsies (correct)
  • Brain imaging
  • Why is a low-energy X-ray spectrum required for mammography?

    <p>To emphasize compositional differences of the breast</p> Signup and view all the answers

    What are the two common views taken during a mammogram?

    <p>Cranio-caudal and mediolateral oblique</p> Signup and view all the answers

    Why is the pectoralis muscle visualized in mammography?

    <p>As a reference point for breast positioning</p> Signup and view all the answers

    What is the primary reason for requiring a low-energy X-ray spectra in mammography?

    <p>To improve image contrast</p> Signup and view all the answers

    Why is a broad dynamic range necessary in mammography?

    <p>To accommodate different breast compositions</p> Signup and view all the answers

    What is the purpose of having a specialised gantry in mammography equipment?

    <p>To accommodate the shape and size of the breast</p> Signup and view all the answers

    In mammography, why is it important to have a Be (Beryllium) exit window on the X-ray tube?

    <p>To reduce X-ray attenuation</p> Signup and view all the answers

    What effect does correct alignment of the mammography system geometry have on the visualisation of breast tissues?

    <p>Improves visualisation of chest wall edge</p> Signup and view all the answers

    Why is a dual focus X-ray tube used in mammography?

    <p>To adjust the energy of X-rays based on breast composition</p> Signup and view all the answers

    What is the role of metallic filters in mammography?

    <p>To act as an energy window for X rays</p> Signup and view all the answers

    In screen-film mammography, where does the optimum beam energy typically lie?

    <p>Between 18 and 23 keV</p> Signup and view all the answers

    What is the purpose of using Mo/Rh and Rh/Rh target/filter combinations in mammography?

    <p>To optimize imaging of thick, dense breasts</p> Signup and view all the answers

    How do metallic filters affect X-ray energies in mammography?

    <p>They enrich the spectrum with X rays in a specific energy range</p> Signup and view all the answers

    Which characteristic X rays are considered suitable for mammography?

    <p>Molybdenum and Rhodium</p> Signup and view all the answers

    Why might higher energies be more optimal for digital mammography?

    <p>To achieve better image quality for tissue under examination</p> Signup and view all the answers

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