Interventional radiology is a sub-specialty of radiology which utilizes minimally invasive image-guided procedures to diagnose and treat diseases throughout the body using the least invasive techniques available in order to minimize patient complications and discomfort while improving health outcomes.

Head and Neck radiology is a subspecialty of radiology that comprises diagnostic imaging and procedures performed by means of all cross-sectional techniques and conventional radiography of conditions involving all the anatomical structures in this region excluding the central nervous system, i.e., the brain and spinal cord and their associated vascular structures and encasing membranes.