What type of shape distortion is present when an image receptor is angled?

When an image receptor is angled, elongation occurs as a type of shape distortion. This happens because the object being imaged is not aligned perpendicularly to the central ray of the imaging beam. As a result, structures that are closer to the image receptor will appear longer than they are in reality. This distortion is particularly notable in radiographic imaging where precise dimensions and angles are critical for accurate diagnosis and assessment.

Elongation happens because the angle of the image receptor causes the projected image of objects to stretch in comparison to their true size and shape. It is essential for radiographers to be aware of this type of distortion, as it can lead to misinterpretation of the image, potentially affecting clinical outcomes. Understanding and recognizing elongation is fundamental in image evaluation and quality control protocols.