Digital subtraction sialography: technique, advantages and results in 107 cases.

Sialographic examinations with the digital subtraction technique were performed in 107 salivary glands (90 parotid and 17 submandibular) of 99 patients. Diagnostic and technical advantages of the digital imaging and subtraction for sialography were investigated. Superior quality enabled detailed imaging of the entire ductal system. Reduced radiation exposure, short examination time and almost painless examinations with good patient tolerance proved to be the major advantages of digital subtraction sialography as a diagnostic tool.