A CT scan of the face produces images that show a patient's paranasal sinus cavities. The paranasal sinuses are hollow, air-filled spaces located within the bones of the face and surrounding the nasal cavity, a system of air channels connecting the nose with the back of the throat. There are four pairs of sinuses, each connected to the nasal cavity by small openings.
Common Uses of Sinus CT
CT of the sinuses primarily is used to:
- Detect the presence of inflammatory diseases.
- Plan for surgery by defining anatomy or giving further Information about tumors of the nasal cavity and sinuses.
- Evaluate sinuses that are filled with fluid or thickened sinus membranes.
- Help diagnose sinusitis.