ABSTRACT
Positioning for antero-posterior cervical spine projection patient erect. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315382210/8ca82e7c-bd07-4171-b4f5-ebaded57b5b3/content/fig2_7a.jpg" xmlns:xlink="https://www.w3.org/1999/xlink"/>
The patient lies supine on the table/trolley or, if erect positioning is preferred, sits or stands with the posterior aspect of the head and shoulders against the vertical Bucky detector system.
The median sagittal plane is adjusted to be at right angles to the image receptor and to coincide with the midline of the table or Bucky.
The neck is extended (if the patient’s condition will allow) so that the lower part of the jaw is cleared from the upper cervical vertebra.
The image receptor is positioned in the Bucky to coincide with the central ray. The Bucky mechanism will require some cranial displacement if the tube is angled.
