In cervical and thoracic discography, what is the C-arm position?

In cervical and thoracic discography, the C-arm is typically positioned in an anterior-posterior (AP) projection. This position allows for an accurate assessment of the intervertebral spaces and the discs within the cervical and thoracic regions, facilitating precise needle placement for the injection of contrast media.

The AP projection provides a direct view of the discs and enables the interventional radiologist to evaluate the disc morphology and surrounding anatomical structures. It also helps in aligning the needle trajectory to minimize complications and achieve optimal access to the disc space.

Other positions, such as lateral or oblique views, have their specific uses in different procedures but do not provide the same direct access and visualization priorities needed for discography in the cervical and thoracic spine. Therefore, the choice of an AP projection is essential for successful outcomes in this particular procedure.