Investigation using dye to find out stone in salivary gland
Dye used is lipiodol or sodium diatrizoate(Hypaque).24-gauge cannula is passed into either Stenson's duct or Whaon's duct and one ml of the dye is injected into the duct and X-ray is taken. SRB,5th,406.
Sialography
Mammography
MR angiography
USG
Head and neck