This diagram illustrates how to identify rotation from the relationship of the

clavicles, first ribs and spine. A film demonstrating this appears on the next

slide.

The right shoulder is rotated

forward and the left shoulder is

rotated away from the observer

This makes the thoracic spinal

processes visible to the right

The oesophagus lies slightly to the

left therefore the NG tube can be

seen more to the left of the

vertebral bodies in a film rotated in

this orientation