Question

The AP projection of C1-C2 (dens) Fuchs method requires a CR angulation?

1) 15-20 degrees cephalic
2) to be parallel IOML
3) 15-20 degrees caudal
4) to be parallel to MML

Answer 1

In the Fuchs method for imaging C1-C2, the central ray should be parallel to the Infraorbitomeatal Line (IOML) with no angulation.

Step-by-step explanation:

The AP projection of C1-C2 (dens) using the Fuchs method does not require a central ray (CR) angulation. Instead, the CR should be parallel to the Infraorbitomeatal Line (IOML), also known as the Reid's base line. This ensures proper visualization of the dens within the foramen magnum without superimposition of the skull.