Skull (AP view)

The skull AP view is a nonangled AP radiograph of the skull. This view provides an overview of the entire skull rather than attempting to highlight any one region.

  • the back of patient's head is placed against the image detector
  • the petrous ridge will overlap the lower 1/3 of the orbits
  • image size: 24 x 30 cm
  • the beam travels anterior to posterior (AP) direction, with 0° of angulation through the nasion
  • source-to-image distance: 40" (100 cm)
  • 80-85 kVp at 25 mAs (or AEC)
  • grid is used
  • may be necessary in patients who cannot be easily or quickly rotated into the skull PA view
  • overlap of facial bone structures makes it harder to evaluate the sinuses than with an angled view (e.g. Caldwell view)
  • the AP view increases the radiation dose to the eyes compared with the PA view
  • increased magnification of the facial bones compared with the PA view 

Radiographic views
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rID: 37219
Section: Radiography
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