Which positioning technique is recommended to improve visualization of the cervical vertebrae in lateral spine images?

Applying a caudal angle to the beam is recommended to enhance the visualization of the cervical vertebrae in lateral spine images because it effectively reduces superimposition of the vertebrae and helps to project them more clearly. This technique allows for better alignment of the cervical spine along the x-ray beam, which can help minimize magnification and distortion often seen in lateral views. By directing the radiation beam at a caudal angle, structures that are usually obscured can be better depicted, making it easier to assess the cervical vertebrae in detail.

Positioning the patient’s head in a natural posture does contribute to overall image quality but may not specifically address the issue of superimposition as effectively as angling the beam. Similarly, elevating the arms of the patient or using a longer exposure time may help in certain situations but do not directly improve the visualization of cervical vertebrae in lateral images like a caudal angle does. Therefore, using a caudal angle enhances the diagnostic quality of the images of the cervical spine.