DORSAL/THORACIC SPINE An imaging test that studies, diagnoses, and examines the bone structure of the central part of the spine is known as a Dorsal/Thoracic Spine X-Ray.It creates images of the central spine at the back.It helps to diagnose the reason for back pain, spinal fractures, spinal bones, look for abnormalities in the spinal boneIt takes only about 15–30 minutes to perform the same.It is a safe technique that does not harm the human body