What is the proper position of the radiographic baseline for the PA axial projection (Caldwell method)of the cranium?

Question

Quizplus · Accepted Answer

The radiographic baseline for the PA axial projection (Caldwell method) of the cranium should be perpendicular to the IR. This helps ensure that the central ray is directed through the specific anatomy of interest, resulting in a properly positioned and diagnostic image. Choice B is incorrect as parallel orientation would result in a distorted image. Choice C is incorrect as the CR should be perpendicular to the IR but not the baseline. Choice D is incorrect as 37 degrees is not a recommended angle for this particular projection.

What Is the Proper Position of the Radiographic Baseline for the PA