A Less Than Optimal PA Axial Cranium Projection (Caldwell Method)

Multiple Choice

A less than optimal PA axial cranium projection (Caldwell method) that requires the chin to be elevated to obtain optimal positioning will

A) demonstrate unequal distance from the lateral orbital margins to the lateral cranial cortices on both sides.
B) demonstrate the superior orbital fissures within the orbits.
C) demonstrate the petrous ridges and pyramids in the superior half of the orbits.
D) need the IOML to be aligned perpendicular to the IR.