ABSTRACT

Positioning for lateral thoracic spine projection. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315382210/8ca82e7c-bd07-4171-b4f5-ebaded57b5b3/content/fig2_81a.jpg" xmlns:xlink="https://www.w3.org/1999/xlink"/>

The examination is usually undertaken with the patient in the lateral decubitus position on the X-ray table, although this projection can also be performed erect.

The median sagittal plane should be parallel to the image receptor and the midline of the axilla coincident with the midline of the table or Bucky.

The patient’s arms should be raised well above the head.

The head can be supported with a pillow, and pads may be placed between the knees for the patient’s comfort.

The upper edge of the image detector or cassette (which should be at least 40 cm in length) and should be positioned 3–4 cm above the spinous process of C7.