Posted on by dp

42. CT numbers and letters

  1. The Hounsfield scale is a quantitative scale for describing radiodensity of different tissues and materials ?
  2. The radiodensity of distilled water is defined as 100 Hounsfield units (HU) ?
  3. The radiodensities of  white and gray matter in the brain are different ?
  4. “Windowing” allows users to expand the CT data sets low dynamic range ?
  5. The default brain window is 80 W 40 L ?
  6. The Hounsfield scale does not apply to cone beam computed tomography (CBCT) scans ?

  1. T
  2. F
  3. T
  4. F
  5. T
  6. T