Question

Which of the following will produce the greatest distortion?

1. AP projection of the skull
2. PA projection of the skull 3. 37° AP axial of the skull 4. 20° PA axial of the skull Answer: 37° AP axial of the skull

Answer 1

The 37° AP axial of the skull will produce the greatest distortion due to the significant angle between the x-ray beam and the skull.

Step-by-step explanation:

The AP projection of the skull with a 37° axial tilt will produce the greatest distortion.

Distortion is created when the angle of the x-ray beam is not perpendicular to the object being imaged. In this case, the 37° axial tilt creates a significant angle between the x-ray beam and the skull. This will result in a distorted image of the skull.

On the other hand, the PA projection of the skull and the 20° AP axial of the skull have less distortion because the x-ray beam is more perpendicular to the skull in those projections.