Clinical study on MR sialography in salivary gland disorder

Objective To observe the changes of the disorder of salivary gland ducts with magnetic resonance sialography(MRS) derived from magnetic resonance hydrography(MRH). Methods Thirty-three cases of salivary gland disorders received MRS, using four sequences, then 200 mg Vitamin C pills were administered.While they were kept in the mouth, MR imaging performed 3 and 10 mins later, respectively and the images of parotid gland ducts were compared. Results IR-FES sequence was superior to conventional FSE sequence in demonstrating the parotid gland duct and its branches(P0.05). The image quality improved after Vitamin C pills administration(P0.05).Conclusions Compared with the common X-ray photography, magnetic resonance and MR sialography are simple,non-injury, and safe 3-D, and more information can be obtained through MRS. MR sialography is a good alternative for imaging parotid gland ducts and important in formulating and operating program.