Salivary Gland / Parotid Gland

• Salivary gland scintigraphy is a nuclear medicine test that evaluates the function of the salivary glands.
• what Rf are used in salivary gland scintigraphy?

  99mTc-pertechnetate
• what is the principle of salivary gland scintigraphy?

  parenchyma of salivary glands contains natrium-iodine symporters which in addition to iodine can accumulate Na99m-TcO4 (pertechnetate)
• indications of salivary gland scintigraphy?

  • evaluation of xerostomia (dry mouth),
  • classification criterion for Sjögren’s Syndrome,
  • monitors the effect of radioiodine on salivary function in patients with thyroid cancer treated with radioiodine,
  • monitors response to therapy in patients with Sarcoidosis,
  • evaluate response after surgery for obstructed duct,
  • evaluation of swelling due to infection, inflammation or obstruction.
• patient prep for salivary gland scintigraphy?

  • fasting 3 hours
  • drink 500ml water
• salivary gland scintigraphy procedure

  • Injection of RF dose 200-300 MBq
  • Supine position
  • Dynamic recording lasting 40min (20-30sec/image)
  • After 45 minutes you will be given a lemon drop/sour substance, to stimulate the emptying of the salivary glands.
  • If necessary, carry out late images
• results of salivary gland scintigraphy

  • Reduction of parenchymal function
  • Localized defect