[The value of MRS in diagnosis of Sjoigren's syndrome in parotid gland].

Purpose: The purpose of this study is to evaluate the value of MR sialography in diagnosis of Sjoigren's syndrome in parotid gland.

Methods: MRI and MRS were used to diagnose Sjoigren's symdrome and differentiate with other disease combined with clinical, serologic and histopathologic result. Meanwhile, the result of MRS was compared with sialograph.

Results: 25 cases were ultimately diagnosed as Sjoigren's syndrome among 32 cases by clinical, serologic, histopathologic and sialography or MRS method. 23 cases were presented typical image in MRS, and sensitivity was 92%; specificity 71.4% and accuracy 87.5%. Other different manifestations were found in 25 cases, such as: autoantibody 68%, focui lymphocytic infiltration 72%. 18 cases have the positive results between MRS and sialography and 15 cases (83.3%) have the same manifestations by degree classification.

Conclusion: The Sjoigren's syndrome can be confirmed by clinical, serologic, histopathologic, and MRS or sialography. MRS is a reliable method to diagnosis and differentiated diagnose Sjoigren's syndrome with other disease.