A Study of MR Sialography for Diagnosing Sj^|^ouml;gren's Syndrome

We performed both MR and conventional X-ray sialography for imaging the major salivary glands in diagnosing Sjögren's syndrome (SS), in 50 patients. Then, the correlation and the diagnostic accuracy of both sialographies in the diagnosis of SS were studied. The MR and conventional X-ray sialographic findings were compared in the same patients. The images produced by both methods were classified according to Rubin and Holt's criteria. There was a highly significant correlation between the two methods (rcc=0.885, p<0.0001). The sensitivity and specificity of MR sialography were 85.3% and 100%, respectively. These data were very similar to those of the conventional method. MR sialography can be considered useful in the diagnosis of SS, with similar sensitivity and specificity to conventional X-ray sialography, and it may be able to replace the conventional method.