In an AP/PA coccyx projection, where should collimation be directed?

In an AP/PA coccyx projection, collimation should be directed to the area of interest, which is crucial for producing the highest quality images with optimal radiation protection. By limiting the collimation to the area of interest, the radiographer ensures that only the relevant anatomical structures (the coccyx and surrounding tissues) are included in the exposure. This practice helps to reduce unnecessary radiation to adjacent areas and minimizes scatter radiation, improving image clarity.

Focusing on the area of interest also aids in diagnostic accuracy, as the structures relevant to the coccyx will be more prominent and easier to assess without extraneous anatomy that could confuse the interpretation of the image. Proper collimation enhances both patient safety and image quality, making it a vital aspect of effective radiographic technique.