"This projection helps to visualise pathology relating to C3-C7 in the anatomical position, demonstrating any compression fractures, clay-shoveler fractures and herniated nucleus pulposus (HNP) 1."
"centring point"
"collimation"
"orientation portrait"
"detector size18 cm x 24 cm"
"exposure"
"SID 100 cm"
"gridyes"
"SID 100 cm"
"cervical spine intervertebral disk spaces should be open 2"
"A lordotic curvature exists in the cervical spine. For this reason, a cephalic angle is required to project through the long axis of the vertebral column. This angle can and will vary between 5-20° depending on the position of the head. To project the intervertebral disc spaces open, the central ray should be directed perpendicular to the long axis of the vertebral column 3, 4. An excessive or insufficient angle can distort these disc spaces."
Expected headings
"Correcting rotational errors"
"Correcting tube angle errors and head tilt errors"
"make sure that any removable artifacts such as earrings, glasses or metal dentures are removed to avoid obscuring the anatomy of interest"