CLO11: Summarize the relationship of factors that control and affect distortion. Distortion is controlled by the factors of source-image receptor-distance, object-image receptor-distance and kVp. Source-image receptor-distance is the distance from the target of the x-ray tube to the image receptor. SID affects things like magnification of the body part. For example, if the SID is… Read more

CLO09: Differentiate between size and shape distortion. Size distortion is the increase in size of the image’s anatomical part compared to the part’s actual size and must occur over the entire image. SID and OID are factors that affect magnification and especially size distortion. Sometimes size distortion will always occur because of OID. SID can… Read more