Sialogram
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It has been suggested that this article or section be merged into Sialography. (Discuss) Proposed since March 2010. |
Sialogram or sialography is imaging of the salivary glands using x-ray[1]
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[edit] Technique
A baseline radiograph of the required salivary gland would be taken , a cannula then is inserted in this salivary gland duct's opening in the mouth, then a Radio-opaque fluid (Contrast medium) is injected in the duct through a small tube.
A series of radiographs would then be taken to determine the flow of the fluid , identify any obstructions and its location , the rate of fluid excretion from the gland.
Usually the radiographs taken are lateral oblique views of the face [2]as Orthopantomogram's are not useful for the purpose of locating the area due to superimpositions and the way they are taken to put the teeth in the main field.
[edit] Indications
- Salivary gland stones
- Salivary duct calculus
- Sjögren's syndrome
- Salivary gland tumours
- Salivary gland narrowing or obstruction
[edit] Contraindications
- Allergy to the contrast medium, mainly to Iodine.
- Acute salivary gland infections
