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Treatment guidelines

CBCT

Key points

  • CBCT offers decreased irradiation dose vs spiral CT scan
  • Radiation dose dependent on mA and exposure time; not on voxel size
  • Dimensional accuracy has been proven to be high
  • Different hardwares offer variety of fields of view (such as 4 x 4 to 15 x 20 cm) according to the clinical indication
  • Both 2D and 3D images can be obtained
  • Hounsfield unit measurements not as reliable as on spiral CT
  • Integrating a planned or existing prosthetic device in the images is unvaluable for treatment planning

Clinical topics

Radiology

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