Final answer:
The patient was over-rotated during imaging as the right sternoclavicular joint, manubrium, and sternal body should not be positioned beneath the vertebral column.
Step-by-step explanation:
If the right sternoclavicular (SC) joint, manubrium, and sternal body are positioned beneath the vertebral column, then the patient was over-rotated during the imaging procedure. The sternum consists of the manubrium, body, and xiphoid process, and the sternal angle is located between the manubrium and body. The sternoclavicular joint is the articulation site for the clavicle and the manubrium. It is important to have a correctly positioned patient to produce clear diagnostic images, and if the bony structures of the thorax are not aligned, it indicates that there may have been excessive rotation.